On December 19th, 1979, Cedar Rapids, Iowa was moving through the final days before Christmas in the way it always had. Store windows were dressed in holiday displays. Parking lots were crowded with last-minute shoppers, and families were focused on routines that felt safe and familiar. It was the kind of ordinary evening that never announces what is about to come. In that quiet normalcy lived Michelle Martinko, an 18-year-old high school senior who stood out not because she demanded attention, but because it naturally followed her.
Michelle was known for her long blonde hair, her polished appearance, and a personality people described as kind, intelligent, and gentle. She attended Cedar Rapids Kennedy High School, where she was well-regarded by teachers and peers alike. Music was central to her life. She sang in the concert choir, participated in school activities, and carried herself with a confidence that had been hard-earned. Years earlier, she had worn a back brace to treat scoliosis, something that had made her feel different and self-conscious as a young teenager. By her senior year, that chapter was behind her. She was thriving, looking ahead to graduation and making plans for her future.
That Wednesday evening, Michelle attended a Kennedy Concert Choir banquet at a local hotel. It was a formal event, the kind meant to celebrate dedication and shared accomplishment. She was dressed neatly as she always was, blending seamlessly into the group of students and parents enjoying the night. There was nothing unusual about her behavior, nothing that suggested fear or distress. After the banquet ended, many of the students headed home. Michelle, however, made a different choice. She decided to go to the Westdale Mall.
The mall had opened only two months earlier and had quickly become the center of social life in Cedar Rapids. It was new, bright, and busy—the place where teenagers gathered and families shopped. Michelle had a practical reason for going there. She had money with her, cash she intended to use toward a winter coat that was on layaway. Christmas was close and she wanted to finalize the purchase. She mentioned the mall to friends from the choir. Some went as well, others declined. At one point, Michelle asked a friend to join her, but plans fell through. In the end, she went alone.
Inside the mall, Michelle moved comfortably through familiar spaces. She spoke with friends who worked there, browsed stores, and blended into the rhythm of closing time. She was last seen shortly before the mall shut its doors for the night. Outside, December had already settled in. It was dark, cold, and quiet in the parking lot. The lights cast long shadows across rows of parked cars. Michelle walked to her family’s tan and green 1972 Buick Electra, parked farther out in the lot, as many cars were.
What happened next would not be witnessed. No one heard a scream. No one reported a struggle. At some point, Michelle was attacked inside her car. The violence was sudden and extreme. She was stabbed again and again, a total of 29 times in her face, neck, and chest. Her hands bore defensive wounds, clear signs that she fought back with everything she had. The assault was confined to the interior of the vehicle. There was no trail of blood outside, no evidence that she had been chased or dragged. It all happened there in the front seat, hidden in plain sight.
Nothing was taken from her. Cash remained in her purse. The items she had purchased were still in the car. The medical examiner would later confirm that she had not been sexually assaulted. Whoever attacked her left behind no fingerprints, leading investigators to believe gloves had been worn. The brutality stood in stark contrast to the absence of an obvious motive. It did not look like a robbery. It did not fit the patterns of a sexual crime. What remained was something far more unsettling.
Michelle did not come home that night. As the hours passed, concern turned into fear. By the early morning hours of December 20th, her father reported her missing. Police began searching. At around 4:00 a.m., officers found the Buick Electra in the northeast corner of the Westdale Mall parking lot near a department store. Inside, they found Michelle’s body collapsed across the passenger seat. The scene was immediately recognized as one of extraordinary violence. Veteran officers were shaken. Many had never seen a stabbing that severe.
The number of wounds suggested rage, obsession, or something deeply personal. Yet, nothing in Michelle’s life, at least on the surface, pointed to someone who would want to hurt her. Investigators quickly realized they were facing a crime that defied easy explanation. News of the murder spread rapidly through Cedar Rapids. The shock was immediate and profound. This was not something the city was prepared for—an 18-year-old girl attacked in a public place just days before Christmas. Parents held their children closer. Teenagers who had walked those same parking lots felt suddenly exposed. The sense of safety the community had taken for granted was fractured overnight.
Police began their work under intense pressure. They examined the car, documented the wounds, and tried to piece together a timeline. The medical examiner estimated that Michelle had died between 8:00 and 10:00 p.m., a narrow window that offered little clarity. With no witnesses and no fingerprints, investigators turned their attention to her personal life, knowing that crimes this violent are often committed by someone the victim knows. Almost immediately, the question surfaced: Was this someone close to her or a stranger?
Friends and classmates struggled to reconcile what had happened with the Michelle they knew. She was cautious. She was thoughtful. Yet there were moments that in hindsight seemed heavy with unease. She had told someone she felt like she was being followed. She had been nervous about going to the mall alone. Those details, small and uncertain, took on a haunting significance after the fact. The investigation was only just beginning, but already it felt overwhelming. Every answer led to another question. The brutality suggested intimacy, but the evidence suggested distance. The setting was public, but the act itself was hidden.
There was no clear reason, no clear suspect, and no clear path forward. As dawn broke over Cedar Rapids, the city woke up to a reality it could not escape. Michelle Martinko was gone. A family had been shattered. A community was gripped by fear. And somewhere, whoever had done this had vanished into the night, leaving behind a crime scene that refused to explain itself. What investigators did not yet know was that this was not just the beginning of a murder case. It was the beginning of a mystery that would stretch across decades, pulling innocent people into suspicion, testing the limits of science, and forcing a city to live with unanswered questions year after year.
On that cold December morning, standing in a silent parking lot, police understood only one thing for certain: This was not a crime that would be solved quickly, and whatever truth lay beneath it would not come easily. In the days after Michelle Martinko was killed, Cedar Rapids shifted into a state of suspicion that touched nearly everyone who had known her. Investigators moved quickly, not because they had strong evidence, but because they had almost nothing at all. When a murder appears this violent, this personal, police instinctively start close to home. They look at the people who loved the victim, argued with her, dated her, or crossed paths with her most often.
And in Michelle’s case, that meant friends, classmates, and especially the young men who had once been part of her life. Detectives began interviewing anyone who had spent time with Michelle in the weeks leading up to her death—choir friends, former dates, acquaintances who had seen her at the mall. Each interview followed the same pattern: “Where were you that night? What time did you last see her? Did you argue with her? Did she seem afraid of anyone?” The questions were direct, relentless, and often repeated. For many of the teenagers involved, it was their first encounter with police scrutiny, and it left a lasting mark.
Very quickly, attention settled on Michelle’s former boyfriend, Andy Seidel. They had dated for about two years before breaking up. Friends described Andy as possessive during the relationship, someone who wanted to know where Michelle was and who she was with. After the breakup, that behavior reportedly continued. He still showed up. He still asked questions. In the eyes of investigators and in the court of public opinion, that made him an obvious person of interest. He was brought in for questioning and asked about his relationship with Michelle, the breakup, and his whereabouts on the night she was killed.
He had an alibi. He said he was at home after the mall closed and his mother confirmed it. But even that did not quiet suspicion. To many, especially in a frightened community, a parent’s alibi felt fragile. Police could not dismiss him outright, but they also could not place him at the crime scene. Others were questioned, too. Mike Hayurrick, another young man who had dated Michelle, was hundreds of miles away at college when the murder occurred. Even so, he was interviewed. He was shown crime scene photographs. He was pressed when investigators felt his answers were incomplete. Though he was eventually cleared, the experience was traumatic. Years later, he would say that in a way, everyone close to Michelle became a victim of that night. Their innocence was stripped away, replaced by fear and doubt.
The scrutiny extended beyond romantic relationships. Friends who had seen Michelle at the mall that night were questioned repeatedly: “Who did she talk to? Did she seem nervous? Was anyone watching her?” Each detail was examined, then re-examined as investigators tried to construct a path that led from Michelle’s ordinary evening to her violent death. But the facts refused to line up. There were no witnesses who saw the attack. No one reported hearing screams. No fingerprints were recovered from the car. Whoever killed Michelle had left behind almost nothing.
Even with a blood-soaked crime scene, there was no usable forensic trail by the standards of the time. DNA technology was still years away from becoming a viable tool. All police had were questions, theories, and the hope that pressure might force a mistake. As weeks turned into months, rumors began to fill the gaps left by the lack of answers. Some people claimed Michelle had received harassing phone calls before her death. Police publicly stated they did not believe this was true. Others whispered that a second stabbing had occurred and was being kept quiet. That rumor was also denied.
In the absence of facts, speculation became its own kind of truth, spreading fear and mistrust through the city. One tip in particular would later stand out as a painful example of how easily information can be lost. Months after the murder, a woman came forward to say that she had driven past the mall parking lot in the early hours of December 20th. She was checking for her daughter’s car, as her daughter worked at the mall and had car trouble in the past. She said she saw two cars in the lot, one of them Michelle’s, and a man standing near the open driver’s side door. At the time, she did not contact police directly. She believed the information had been passed along through official channels. It had not.
By the time detectives learned of it, the lead was cold, impossible to verify, and another opportunity had slipped away. Police continued to chase every angle they could. A man who had committed a violent rape at knifepoint in Cedar Rapids weeks earlier became a serious suspect. The crime bore some similarities, and for a time, investigators believed they might have found their answer. But years later, DNA evidence would rule him out. He died in prison without ever being charged in Michelle’s murder.
Investigators also released a composite sketch in 1980 created from descriptions given by witnesses under hypnosis. It depicted a young white man with curly hair, someone who looked like countless other men in the area. Hundreds of tips followed. None led to an arrest. As the months stretched into years, the number of people interviewed climbed into the hundreds. Some were even subjected to hypnosis themselves, a practice that reflected both the desperation of the investigation and the limits of the tools available at the time.
For Michelle’s family, the passage of time was agonizing. Each new lead brought a surge of hope, followed by disappointment. Her parents watched as the case slowly lost momentum. By the mid-1980s, investigators privately acknowledged what the community feared: the case was going cold. There were no new suspects, no new evidence, no clear direction. The focus on those closest to Michelle had yielded nothing but pain. Innocent people carried suspicion for years. Andy Seidel left Cedar Rapids and joined the Navy, but whispers followed him long after he was gone. For many in town, belief hardened into certainty without proof. Michelle’s parents would die never knowing that Andy had eventually been cleared by DNA evidence decades later.
As the years passed, the murder became a fixed point in Cedar Rapids’ memory. Every December, news stations revisited the case. Michelle’s face reappeared on screens. Her name was spoken again, but nothing changed. The killer remained unidentified. The fear never fully left. By the time the investigation reached its second decade, even seasoned detectives felt the weight of failure. They had done what they could with what they had. Files were boxed, shelved, and revisited only occasionally. The city learned to live with the unanswered question of who killed Michelle Martinko.
And yet, buried in those files, unnoticed and unexamined, was something that would eventually change everything. At the time, no one knew it was there. No one knew that the truth had been waiting quietly, preserved by chance and overlooked by circumstance, ready to speak only when the world finally learned how to listen. As the years moved forward, the urgency that once surrounded Michelle Martinko’s murder slowly dissolved into something quieter and more unsettling. The case did not end. It simply stopped moving. Detectives still worked it, still cared about it, but momentum faded. Each new lead seemed thinner than the last, each interview less hopeful. What remained was a thick file of unanswered questions and a crime that refused to explain itself.
By the early 1980s, police had spoken to hundreds of people—friends, classmates, mall employees, strangers who happened to be nearby that night. Some were questioned once, others multiple times. A number of them were given polygraph tests. None of it produced a break. The composite sketch released to the public brought in tips, but every face eventually led nowhere. Men were interviewed, compared, and ruled out. The sketch, meant to narrow the search, instead became a symbol of how vague the trail truly was. Investigators even turned to hypnosis, a reflection of how desperate the search had become. Witnesses were guided back through their memories, asked to recall fleeting details from a night already blurred by time and shock.
Hypnotic sessions generated descriptions, but not certainty. Each new detail contradicted another. Each new possibility collapsed under scrutiny. What police needed was something solid, something physical, and they didn’t have it. As the case slipped further from the headlines, it settled into the background of Cedar Rapids life. It never fully disappeared. Every December, Michelle’s face returned to local news broadcasts. Her smile, her name, the words “unsolved murder.” For longtime residents, the anniversary became a reminder that some questions do not fade, no matter how much time passes. For younger generations, it became a story they grew up hearing, something that shaped how safe or unsafe their city felt.
For Michelle’s parents, Albert and Janet Martinko, time did not dull the pain. It sharpened it. Each passing year without answers was another year of waiting, another Christmas without closure. Eventually, they turned to the civil courts, filing a lawsuit against the owners of the Westdale Mall. They argued that reasonable security had not been provided on the night their daughter was killed. It was not just about responsibility. It was about doing something, anything, when the criminal case had stalled. The lawsuit worked its way through the courts, drawing attention back to the murder, if only briefly. In the end, the case was decided in favor of the mall owners. The ruling changed nothing about Michelle’s death. It did not bring answers. It did not point to a suspect. It simply marked another door closing.
Behind the scenes, the investigation continued at a slower pace. Detectives rotated on and off the case. Some retired, others moved on to new assignments. The files grew thicker, but not clearer. There were moments when a new suspect appeared promising, when similarities to other crimes raised hope. One man, who had committed a violent assault at knifepoint in the area, was strongly considered. For a time, it seemed possible that police had finally found the right path. But years later, DNA would rule him out completely. Another dead end.
By the mid-1980s, even seasoned investigators had to acknowledge the reality. There was nothing new to chase, no fresh evidence, no technological tools capable of pulling more information from the crime scene. Michelle Martinko’s case was not officially closed, but it was effectively frozen. The phrase “cold case” was not just a label; it was a description of how the investigation felt—still, silent, locked in place. The emotional toll was visible in the Martinko family. Janet and Albert carried their grief privately, but those close to them could see the weight of unanswered questions. They lived with the knowledge that their daughter had fought for her life, that she had not gone quietly, and that her killer remained free.
Janet died in 1998. Albert passed away three years earlier in 1995. Neither lived to see the investigation move forward again. Both died without knowing who killed their daughter. Their deaths marked a quiet turning point. With no parents left to advocate, the case risked fading even further into obscurity. For a while, it seemed as though that might happen. The murder remained unsolved. The files stayed on shelves. New crimes demanded attention. New victims needed justice. Michelle Martinko became part of the city’s past rather than its present.
Yet, the case never fully let go of those who had worked it. Some detectives remembered it as the one that got away. Others carried it as an unfinished promise. Every so often, someone would reopen the file, reading through reports, photographs, and witness statements, hoping to see something that had been missed. Most of the time, they found nothing new. The killer, whoever he was, appeared to have vanished. There were no known confessions, no arrests tied back to the crime, no physical evidence strong enough to force the case forward. For decades, he lived somewhere beyond the reach of the investigation, unseen and untouched by the questions that haunted Cedar Rapids.
As time passed, technology quietly advanced. DNA analysis became more precise. Databases grew. Techniques that once seemed impossible slowly became standard. But for years, none of that mattered. The evidence from Michelle’s case sat dormant, either unrecognized or unusable by the standards of the time. Progress elsewhere did not immediately translate into hope here. By the early 2000s, Michelle Martinko’s murder existed in a strange space. It was old, but not forgotten; cold, but not abandoned. The grief remained unresolved, shared now by a community rather than just a family. The case was no longer driven by urgency, but by persistence—the belief that some truths do not expire simply because time has passed.
And somewhere within those aging files, among reports that had been read and re-read, was a detail that had not yet been fully understood—something small, something overlooked. At the time, no one realized it was there. But when the case finally stirred again, it would be because someone chose to look backward instead of forward—to question not what had been done, but what had quietly been missed. Decades after Michelle Martinko was killed, her case existed mostly as memory and paperwork. The file was thick, heavy with reports, photographs, and statements gathered during years when answers seemed just within reach and then slipped away. For most people, it was a story from another time. For a small group inside the Cedar Rapids Police Department, it was unfinished business.
And for one investigator assigned long after the headlines had faded, it was something more personal. It was a question that refused to stay quiet. When the case was reopened for review, there was no dramatic announcement and no sudden sense of optimism. Cold cases rarely come back to life with certainty. They return slowly, cautiously, often driven by nothing more than persistence. The investigator began where so many before him had started, reading from the beginning, page by page, report by report, not looking for new information, but for something that might have been misunderstood, overlooked, or forgotten entirely.
Buried in the documentation was a reference that had never been fully pursued: blood evidence taken not from the victim, but from the car itself, specifically from the gear shift. At the time of the murder, the focus had been on Michelle’s injuries, the brutality of the attack, and the absence of fingerprints. The blood had been collected, logged, and stored. It had even been sent out for analysis years earlier, but the results had never been followed up in a meaningful way. They had simply remained in the file. The realization was unsettling. In a case defined by the absence of evidence, there had been something tangible all along.
The investigator requested that the blood be re-examined using modern forensic methods. Science had changed dramatically since 1979. What once offered only blood type or limited markers could now tell a far more precise story. When the results came back, they confirmed something investigators had long suspected but never been able to prove: The blood did not belong to Michelle Martinko. It was male, and it was mixed with hers, consistent with a struggle. The implication was clear. Whoever killed Michelle had likely injured himself during the attack, leaving behind the very thing police had spent decades searching for.
For the first time in years, the case felt alive. A DNA profile was developed from the blood. The odds were staggering. Analysts concluded that fewer than one in 100 billion people would match it. In a world of just over eight billion, the chances of a random match were virtually non-existent. This was no longer circumstantial. It was specific. It was precise. It was powerful. The profile was entered into the Combined DNA Index System, known as CODIS, the national database used to match crime scene DNA with known offenders.
Investigators waited. A hit would mean the killer had committed another crime and been caught. A hit would mean an identity. A hit would mean an end to decades of uncertainty. No hit came. The silence from CODIS was crushing. The profile did not match anyone in the system. It suggested that Michelle’s killer had never been arrested for a felony that required DNA submission or that he had somehow avoided the database entirely. Once again, hope collided with reality. Investigators did not stop. If the database would not give them a name, they would have to build one the old way.
They began collecting DNA samples from people who had been suspects in the past—former boyfriends, friends, classmates, men who had lived near the mall, men who had been questioned years earlier and never fully cleared by forensic evidence because such evidence did not exist at the time. Convincing people to submit DNA was not easy. Some agreed willingly, eager to put suspicion behind them. Others were hesitant, wary of reopening wounds or placing themselves under scrutiny again. Each sample was collected, tested, and compared. Each time, the result was the same: not a match.
The list of eliminated suspects grew longer. One by one, names that had haunted the case for decades were crossed off with certainty that had never been possible before. Andy Seidel, once widely suspected, was cleared. Others followed. For the first time, investigators were not relying on alibis, memory, or perception; they were relying on science. More than 100 people would eventually be tested. None of them matched the DNA from the gear shift or the blood on Michelle’s clothing. It was progress, but it did not feel like victory.
Each elimination confirmed only one thing: The killer was still out there, and he was not someone who had ever been seriously suspected. The frustration was immense. Investigators had the strongest evidence the case had ever seen, and yet it pointed to no one. Years passed. The DNA profile remained unchanged. CODIS continued to return nothing. The case hovered in an uneasy space between possibility and stagnation. Still, there was a shift in mindset. For the first time since 1979, the investigation was no longer driven by theory. It was driven by data.
The question was no longer who might have done this, but how to find the person whose DNA was already known. Science continued to evolve. Techniques that once seemed experimental became reliable. Investigators began asking new questions. Could DNA reveal more than just identity? Could it tell them something about what the killer looked like? Where he might have come from? What traits he carried? The idea would have sounded impossible years earlier. Now it felt necessary. The case moved forward not with certainty but with determination. Each failed match narrowed the field. Each advancement in forensic science opened a door that had previously been sealed shut.
Investigators understood that they were no longer chasing a person in the traditional sense; they were chasing information. Michelle Martinko’s murder had waited decades for this moment. The evidence had been there all along, silent and patient, preserved through time. It had survived changing hands, changing technology, and changing priorities. Now, it was finally being heard. The realization settled in slowly but unmistakably: If traditional databases could not provide the answer, and if the killer had never crossed paths with law enforcement before, then the solution would have to come from somewhere else—somewhere unconventional, somewhere that blurred the line between criminal investigation and personal history.
The blood on the gear shift had already spoken once, identifying itself as belonging to the killer. It was not finished yet. Investigators could feel it. The science that had revived the case was still evolving, still offering possibilities that had not existed even a few years earlier. And somewhere ahead, beyond frustration and dead ends, was the possibility that the DNA itself would do what no witness, no confession, and no suspect ever had. It would lead them home.
By the time investigators reached the next phase of Michelle Martinko’s case, they understood something fundamental had changed. The DNA profile recovered from the blood on the gear shift and Michelle’s clothing was no longer just evidence. It had become the case itself. Everything now revolved around what that DNA could reveal, not only about who the killer was, but about how he might finally be found. For years, the profile had sat in CODIS without a match—a silent confirmation that the person responsible had likely never been arrested for a qualifying crime.
That realization forced detectives to accept a difficult truth: The man who killed Michelle might have lived an ordinary life. He might have avoided trouble. He might have blended into his community in ways that made him invisible to traditional law enforcement methods. If that were true, then finding him would require a different approach. That approach began with DNA phenotyping. In 2017, investigators turned to a company specializing in extracting physical traits from genetic material.
The idea was both simple and radical. If DNA could not produce a name, perhaps it could produce a face. Using the genetic profile, scientists analyzed markers associated with ancestry, eye color, hair color, and other physical characteristics. What emerged was not a photograph, but an approximation—a portrait built entirely from data. The image that resulted surprised many. It showed a white male with blonde hair and blue eyes, a stark contrast to the composite sketch released decades earlier, which had depicted a dark-haired suspect based on hypnotized witness descriptions.
The new image forced investigators and the public to confront how unreliable memory and perception can be, especially under stress and over time. The release of the image reignited interest in the case. Tips poured in once again. People searched their memories, flipping through old yearbooks and photographs, wondering if the face resembled someone they had known. For a brief moment, it felt as if the city was holding its breath, waiting for recognition to spark an arrest. But recognition never came.
Despite the renewed attention, no suspect emerged. The image generated discussion, not answers. Once again, investigators were left with progress that stopped just short of resolution. Still, the exercise was not a failure. It confirmed something crucial: The DNA profile was capable of giving more than investigators had once thought possible. That realization opened the door to the next step. By 2018, genetic genealogy had begun reshaping cold case investigations across the country.
The arrest of the Golden State Killer using familial DNA had demonstrated that a person could be identified not by their own genetic profile, but by the profiles of relatives who had voluntarily submitted DNA to public ancestry databases. It was controversial. It raised ethical questions, but it worked. Investigators decided it was time to try. The DNA phenotyping company entered the Martinko profile into GEDmatch, a public genealogy website where users upload their DNA to explore family history.
The database was not designed for criminal investigations, but it had become an unexpected tool for law enforcement. What investigators hoped for was not a match, but a connection—a relative, someone whose DNA shared enough markers to point toward a family line. In July of 2018, the results came back. GEDmatch identified a woman who shared DNA with the unknown suspect. She was not closely related, but the connection was strong enough to matter. Analysts determined she was likely a second cousin once removed to the person who had left his blood at the crime scene nearly 40 years earlier.
For the first time, the killer existed within a family tree. That tree became the new focus of the investigation. Detectives began the painstaking work of building out the woman’s lineage: birth records, marriage certificates, census data, obituaries, gravestones. Every document that could help connect one generation to the next was examined. The process took months. Names multiplied, branches spread outward. With each addition, the pool of potential suspects narrowed. Eventually, investigators identified several branches that could be eliminated through direct DNA testing.
Family members were contacted. Samples were collected. Those branches were ruled out. The tree grew smaller, more defined, more focused. At last, the work led to one remaining branch. That branch pointed to three brothers who had grown up in Manchester, Iowa. All three were still alive. All three shared genetic ties consistent with the DNA profile, and all three lived relatively ordinary lives, far removed from the crime scene in Cedar Rapids.
None had been suspects in the original investigation. None had criminal records that would have placed their DNA in CODIS. For decades, they had existed entirely outside the reach of the case. Now, they were at its center. Investigators knew they had to proceed carefully. They could not alert the brothers to their status as suspects. Any hint could lead to destroyed evidence or legal complications. Instead, they began surveillance, quietly observing daily routines, waiting for an opportunity.
The plan was simple: collect discarded DNA. One brother was followed to lunch. When he finished his drink and threw away the straw, investigators retrieved it. Another brother’s toothbrush was collected from his trash. Each sample was sent to the lab. The results came back negative. One by one, two of the brothers were eliminated. That left one: Jerry Lynn Burns. Burns was living in Manchester, Iowa. He owned a business. He had a family. There was nothing about his public life that suggested violence or secrecy.
He had no known connection to Michelle Martinko, no known connection to the Westdale Mall. On paper, he made no sense as a suspect. And yet, the genetic trail pointed directly to him. In October of 2018, investigators followed Burns to a pizza restaurant. He ordered a soda, then another. Each time, he drank through a straw. When he finished and discarded the straw, detectives collected it. The sample was sent to the lab.
When the results came back, there was no ambiguity. The DNA from the straw was an exact match to the male DNA found on Michelle Martinko’s clothing and the blood on her car’s gear shift. The probability of it belonging to anyone else was astronomically small. After nearly four decades, the profile had finally found its owner. Investigators described the moment as surreal. Years of frustration, false starts, and unanswered questions collapsed into a single confirmation. They were not just close; they were done.
Jerry Burns was arrested on December 19th, 2018, exactly 39 years to the day after Michelle Martinko was murdered. When detectives went to speak with him, they chose the date deliberately. It was not a coincidence. They wanted to see if the anniversary would trigger recognition, emotion, or reaction. Burns agreed to speak with them. He denied knowing Michelle. He acknowledged having been to the mall at some point in his life, but could not explain how his DNA would have ended up at the crime scene.
When told that his DNA had been found in Michelle’s car, Burns did not offer an explanation. He did not deny involvement outright. He simply pointed back to the evidence: “Test the DNA they had.” For Michelle’s family, the arrest was almost unimaginable. For years, they had lived with uncertainty. Some had believed the case would never be solved. Others had stopped allowing themselves to hope. The news reopened old wounds, but it also brought something that had been missing for decades—a sense that the truth had not disappeared.
It had waited for the community of Cedar Rapids. The arrest sent shockwaves. The idea that the killer had lived quietly without suspicion challenged everything people thought they knew about the case. It forced a re-evaluation of assumptions that had shaped the investigation from the beginning. And for investigators, the arrest marked the moment when science had finally caught up with patience. The DNA that had been collected, stored, overlooked, and rediscovered had done what no witness ever could. It had spoken clearly, without emotion or memory. It had named the person responsible. But an arrest was not the end of the story. It was the beginning of the final reckoning.
By the time Jerry Lynn Burns was brought to trial, the weight of 40 years pressed down on every moment. This was no ordinary prosecution. It was an attempt to compress decades of grief, suspicion, and unanswered questions into a courtroom narrative that 12 jurors could understand. For the people of Cedar Rapids, the trial felt less like the beginning of a legal process and more like the final chapter of a story they had been living with for most of their lives.
The case was moved out of Linn County, away from Cedar Rapids, because of the intense attention it had received over the years. Too many potential jurors already knew Michelle Martinko’s name. Too many had grown up hearing about the murder at the mall. The venue change was meant to protect the integrity of the process, but it also underscored just how deeply the case had embedded itself into the community’s identity. In February of 2020, the trial began. From the start, the prosecution made its strategy clear: This case would stand or fall on DNA.
There were no eyewitnesses, no confession, no clear motive. What they had was science, and they believed it was overwhelming. Investigators explained how blood found on the gear shift and on Michelle’s clothing contained male DNA that did not belong to her. Experts testified to the statistical certainty of the match, explaining that the probability of the DNA belonging to anyone other than Jerry Burns was so small it was almost meaningless to consider.
Former detectives, many now retired, took the stand to describe the original investigation. They spoke about the brutality of the crime, the lack of fingerprints, and the early belief that gloves had been worn. The medical examiner detailed Michelle’s injuries, the defensive wounds on her hands, and the conclusion that she had fought back fiercely. Each piece of testimony reinforced the same message: Whoever killed Michelle had been injured during the attack. Whoever bled at the scene had left behind the key to the case.
The defense did not dispute that the DNA matched Jerry Burns. Instead, they focused on how that DNA might have ended up at the scene without him committing the murder. They raised questions about evidence handling, pointing out that items of clothing had been stored together and suggesting the possibility of contamination. A forensic DNA consultant testified about secondary transfer, explaining that DNA can sometimes move from person to object through indirect contact. He clarified that while such transfer was possible in general, he was not asserting that it had happened in this case.
Still, the defense leaned heavily on the uncertainty. The prosecution countered with their own experts who explained that the storage of evidence in Michelle’s case was not unusual for the time and that contamination was extremely unlikely. They emphasized the location of the DNA mixed with Michelle’s blood on both her clothing and the gear shift. The implication was unavoidable: This was not casual contact. This was the result of violence.
Jurors were shown recorded police interviews with Burns. In them, he denied knowing Michelle and denied being at the scene. When confronted with the DNA evidence, he did not offer an explanation. In a later recording made after his arrest, Burns questioned whether it was possible he had blocked out the memory of committing the crime. The prosecution framed this not as confusion, but as an acknowledgment that he could not account for the evidence against him.
One of the most contested moments of the trial came with the testimony of a former cellmate, Michael Allison. He told the jury that he had asked Burns directly whether he committed the crime and that Burns said he could not talk about it. Allison also described a comment Burns allegedly made while they were playing cards, a reference to taking him to the mall if he kept winning. The defense attacked Allison’s credibility, pointing out his criminal history and questioning his motives for testifying. The prosecution argued that his testimony fit a pattern of troubling behavior.
Throughout the trial, Michelle’s friends and former classmates were called to relive the worst moment of their lives. Some had not spoken publicly about the case in decades. Others had carried suspicion for years before being cleared by DNA. Sitting in the courtroom listening to the details forced them back into a time they had never fully escaped. The defense’s final argument centered on plausibility. They asked jurors to imagine the scenario the prosecution was presenting: A married man with young children, they argued, leaving his home, driving to a mall in another city, armed with a weapon and gloves on the chance he might encounter a stranger to kill, then returning home without being noticed.
They framed the theory as unlikely, even absurd. They urged the jury to focus not just on the evidence presented, but on what was missing. The prosecution’s closing was simpler. They told jurors there was only one reasonable explanation for Jerry Burns’ DNA being at the scene: He was there, he was injured, and he left his blood behind. After closing arguments, the jury was sent to deliberate. For those waiting, the hours felt heavy. This was not a case anyone expected to resolve quickly.
Forty years of investigation had led to this moment, and the outcome rested in the hands of 12 people who had not lived through those decades of uncertainty. Some feared a hung jury. Others feared that doubt, no matter how small, would be enough to erase the work that had finally brought the case to court. After just three hours, the jury returned. The verdict was guilty. Jerry Lynn Burns was convicted of first-degree murder.
For Michelle’s family, the moment was overwhelming. Relief came first, followed by grief that had never fully healed. There was no celebration, only the quiet acknowledgment that the question that had haunted them for most of their lives finally had an answer. For investigators, especially those who had carried the case for years, the verdict felt like closure that had been postponed but not denied. Burns was sentenced to life in prison without the possibility of parole, as required by Iowa law.
Appeals followed. His attorneys argued that his constitutional rights had been violated and that evidence should have been suppressed. Each appeal was denied. In March of 2023, the Iowa Supreme Court upheld his conviction. The legal process, like the investigation itself, had taken time, but it had ended the same way. Today, Jerry Burns remains incarcerated. Michelle Martinko remains remembered.
The impact of the case did not end with the sentence. For Cedar Rapids, it reshaped how people thought about justice, patience, and the reach of science. For those who had once been suspected, it brought vindication, though far too late to erase years of doubt. For the detectives who refused to let the case die, it affirmed that persistence matters, even when progress is invisible. And for Michelle, the truth carried a final haunting clarity.
The evidence that identified her killer was not found through chance or confession. It was left behind because she fought back. The defensive wounds on her hands told that story. In resisting her attacker, she caused him to cut himself. And in doing so, she preserved the proof of who he was. Nearly 40 years after her death, Michelle Martinko became her own witness. The story does not end with triumph. It ends with understanding. A young woman lost her life in a moment of unimaginable violence. A family waited decades for answers. A community lived with fear and suspicion. And science slowly and imperfectly closed the distance that time could not. Justice did not come quickly, but it finally came.
