A house fire outside Chicago killed a pregnant paramedic two days before her due date. The father of her unborn child would not be charged for more than a year.
A Friendship and a Pregnancy
Melissa Lamesch lived in Mount Morris, Illinois, a small town in Ogle County. She and Matthew Plote met in college and remained friends for seven years, moving in and out of a casual relationship within the same circle of friends.
Plote worked as a firefighter and paramedic with the Carol Stream Fire Protection District, roughly 75 miles from Mount Morris, where colleagues considered him dependable and easy to work alongside.
When Melissa became pregnant, she told Plote, who did not share her excitement about becoming a parent. He asked her to consider ending the pregnancy, which she declined to do.
In the months that followed, he distanced himself from her, and the friendship the two had built over the years began to fall apart. Plote kept the pregnancy hidden from nearly everyone in his life, including his co-workers and his own parents.
Despite the limited contact between them, Melissa kept reaching out to Plote, sending him sonogram images and updates as her pregnancy progressed, hoping her son could eventually have both parents involved in his life.
Plote occasionally responded but rarely engaged beyond that. Melissa eventually told his parents about the pregnancy herself, giving them the chance to be part of their grandchild’s life.
His parents responded warmly and offered their support, but Plote grew upset once he learned they had found out.
As her due date approached, Melissa stopped working and moved back into her childhood home to live with her father, since her parents had divorced years earlier.
She continued preparing for her son’s arrival and celebrated the pregnancy with a baby shower attended by family and friends, where she shared that she was expecting a boy.
Her mother, Deanna, and father, Gus, told her they would help in any way she needed, financially or otherwise, regardless of whether Plote chose to be involved.
Melissa’s four siblings and extended family also stood ready to help raise her son, and she never doubted that she had enough support to manage on her own if Plote remained absent from her son’s life.
Although the friendship had cooled, Melissa and Plote still spoke occasionally about practical matters, including what financial support he might provide once the baby was born.
Those conversations remained unresolved in the weeks leading up to her due date, with the two agreeing to sort out further details in person rather than settling anything over the phone.
Thanksgiving Eve
On November 25, 2020, the day before Thanksgiving, Melissa was looking forward to a quiet holiday with her father the next day, just two days before her scheduled induction.
That morning, she spent part of it on the phone with her sister Cassie. The two talked for roughly two and a half hours about the future and what life would look like once the baby arrived.
During the call, she noticed someone outside her window and told Cassie that Matthew Plote had shown up at the house again, unannounced, adding that she had already asked him to stop doing that.
She said she would call Cassie back once she found out what he wanted, then ended the call. She never called her sister back.
That same afternoon, Melissa’s youngest sister, Julialyn, was celebrating her seventeenth birthday.
She and their mother were out shopping for a birthday cake when Melissa’s brother, Karl, called in a panic, asking whether anyone had heard from Melissa. A neighbor had reported that her house was on fire.
Local authorities contacted the family shortly afterward to confirm a fire had broken out at the home. As word spread through the family, no one could reach Melissa by phone, and it quickly became clear that something had gone seriously wrong.
Firefighters and police responded to the scene, where Melissa’s body was found on the kitchen floor near the stove.
At that point, investigators could not determine whether the fire had started by accident or had been set intentionally, and the scene itself offered few immediate clues.
Smoke and debris covered much of the kitchen, and portions of the ceiling had collapsed, making it difficult to assess the damage without a more thorough examination in the days that followed.
The Investigation Begins
Matthew Plote became a person of interest from the outset because he had been at Melissa’s home earlier that day.
When questioned that evening, he confirmed he had gone to see her to discuss finances and arrangements for her upcoming hospital induction.
He told investigators that after the two spoke, Melissa mentioned she was going to make lunch, and he left before that happened.
During the interview, he referred to his son’s approaching birth as a “deadline,” a word choice investigators took note of. Throughout the questioning, his demeanor was notably calm, quiet, and reserved.
At the same time, a special agent with the Illinois State Fire Marshal’s Office, Michael Poel, examined the scene to determine where the fire had started.
He traced the greatest damage to cabinets above the kitchen stove, but found that the stove’s burners and oven controls were all switched off, ruling out a cooking accident.
He also found no evidence of an electrical malfunction, and the home had at least three exits that remained accessible and were not blocked by flames.
Investigators examining Melissa also noted that her body did not show extensive fire damage compared with the surrounding kitchen, which raised further questions about how she had died.
As a trained paramedic accustomed to handling emergencies, she would ordinarily have been expected to recognize the danger and make her way to one of the clear exits rather than remain in the kitchen.
Investigators also learned that Melissa’s brother, Karl, had spoken with Plote by phone earlier that day, telling him that a fire had occurred and that someone had died, though he did not say it was Melissa.
This detail helped investigators piece together who knew what, and when, in the hours after the fire.
At this early stage, investigators still could not say with certainty whether Melissa had suffered a medical emergency, been overcome by carbon monoxide from the fire, or been harmed by someone else.
Answering that question required waiting for complete results from the medical examiner’s office.
Evidence Emerges
Two autopsies were performed on Melissa, the first two days after her death and a second about two weeks later, while investigators waited for complete laboratory results.
Both showed normal carbon monoxide levels and no soot in her airway, meaning she had died before the fire started. Examiners instead found hemorrhaging around her neck consistent with strangulation. Based on these findings, her death was classified as a homicide.
On December 14, 2020, nearly three weeks after her death, Melissa’s family held a funeral for her and the son she had planned to name Barrett.
It was the first opportunity family members had to hold him, and they described the moment as one of the hardest parts of an already devastating loss.
In the months that followed, investigators continued building their case. They collected DNA evidence during the autopsy and sent it to a crime lab and obtained search warrants for phone records.
They also sought recordings from an Amazon Echo Dot recovered from the fire-damaged kitchen, hoping it had captured audio from that afternoon.
When the recordings were eventually retrieved, they contained voices unrelated to the investigation and nothing from the day of the fire itself, leaving investigators without the breakthrough they had hoped for from the device.
A subsequent report from the Illinois State Fire Marshal’s Office concluded that the fire’s cause was most likely incendiary, meaning it had likely been set intentionally, possibly to conceal a homicide.
Gathering this evidence took considerable time, and the wait for the toxicology results, the fire marshal’s findings, and the Amazon recordings stretched the investigation well into the following year.
From Suspicion to Conviction
In the months after the funeral, the wait for answers grew difficult for Melissa’s family, who regularly checked in with investigators as the case continued to develop out of public view.
About nine months after Melissa’s death, Carol Stream Fire Chief Rob Schultz received a call informing him that one of his firefighters was under investigation for murder.
Schultz initially found the idea hard to believe, given Plote’s reputation as a dependable colleague, but his doubt began to shift once he confirmed that Plote had called out sick on the day of the fire.
Schultz then told Plote he was under investigation and placed him on paid administrative leave.
During the course of the investigation, detectives also learned that Plote had been involved with several women at the same time in the period surrounding Melissa’s pregnancy, information that later factored into the case prosecutors built against him.
On August 28, 2021, Plote returned for a second interview, this time lasting seven hours. He appeared without an attorney and told investigators he wanted to be part of his son’s life.
He described discussing what he could pay Melissa and repeated that she had been making lunch when he left the house.
Despite hours of direct questioning, including moments when investigators accused him outright of harming Melissa, he responded to most questions with silence and did not become visibly upset at any point. At one point during the interview, he stated he had no intentions of hurting Melissa.
Investigators later asked Schultz to wear a hidden recording device and speak with Plote directly, a request Schultz initially turned down before agreeing to help after further thought.
On September 9, 2021, Schultz invited Plote to the fire station for a conversation that investigators listened to and recorded from nearby.
The conversation lasted nearly two hours but yielded little additional information, with Plote again offering few details about what had happened at Melissa’s house.
Investigators had held off collecting a DNA sample from Plote until after the August 2021 interview. When the results came back, they showed his DNA under Melissa’s fingernails.
On March 9, 2022, with a police body camera recording the moment, Plote was arrested and charged with murder, the intentional homicide of an unborn child, and arson.
He hired attorneys John Kopp and Liam Dixon and pleaded not guilty to all charges. His defense team argued that prosecutors were unfairly portraying a firefighter with a long career of helping others as someone who had suddenly turned to violence, and maintained that the evidence did not support the charges against him.
Plote’s trial began on March 18, 2024, in Ogle County, Illinois, more than three years after Melissa’s death. Melissa’s parents attended every day of the proceedings, as did Plote’s parents, who sat on the other side of the courtroom throughout the week.
Prosecutors, assistant state’s attorneys Allison Huntley and Heather Kruse, argued that Plote killed Melissa because he did not want to become a father and had gone to significant lengths to keep the pregnancy secret, including from the people closest to him.
Fire investigator Michael Poel testified that he was certain the fire had been intentionally set, though defense attorneys challenged him during cross-examination over language in his report describing his conclusions as “most likely” and “believed.”
A forensic pathologist who had performed one of the autopsies testified that Melissa’s injuries included some of the most severe hemorrhaging she had seen in a strangulation case.
Cassie testified about her final phone call with her sister and the moment it ended when Plote arrived at the house.
Jurors also watched recorded footage from the earlier interviews, and prosecutors pointed out that across all the hours of questioning, Plote never once denied killing Melissa or their child.
The defense called one witness, retired firefighter and independent fire inspector John Knapp, who disputed the state’s fire investigator and testified that the evidence did not prove the fire had been intentionally set. Plote waived his right to testify.
In closing arguments, defense attorneys argued that investigators had focused on Plote too quickly, without meaningfully looking into any other possible suspects, including other people in Melissa’s life.
Prosecutors countered that Plote was the only person who had a clear reason to want Melissa gone, given his effort to keep the pregnancy hidden and his open involvement with multiple other women at the time.
The trial lasted a week, and after two hours of deliberation, the jury found Plote guilty on all charges, including first-degree murder.
On June 27, 2024, roughly three months after the verdict, Melissa’s family and friends returned to the courthouse for sentencing, where several relatives read victim impact statements describing the loss of Melissa and the grandson they never had the chance to meet.
Plote made a brief statement to the court expressing that he shared in the family’s pain and loss. The judge then imposed the maximum sentence, natural life imprisonment, meaning Plote will spend the remainder of his life in state custody.
Remembering Melissa
Melissa Lamesch was 27 years old and working as an emergency medical technician at the time of her death.
She had decided to pursue a career helping others after an experience in an emergency room during college, when she was struck by how well she had been treated by the staff there and wanted to offer that same care to other people.
She was one of five siblings and was already an aunt several times over before her son was due to be born.
Those who knew her described her as someone who followed her own path and was unapologetically herself, often reinventing her look and her career over the years.
Family and friends often described her as a balance of sweetness and spirit, someone who was neither too soft nor too sharp, but exactly herself.
She was remembered as strong, fierce, and determined, someone who did not let obstacles stand in her way and who took pride in the work she did helping others in moments of crisis.
In the years since her death, Melissa’s family has found ways to honor her memory and that of her son.
They have delivered toys to a local homeless shelter in Barrett’s name, donated to the no-kill animal shelter where Melissa had adopted her cat, and sponsored a tree at a local arboretum she loved.
Each year during the holiday season, the tree is lit as part of the arboretum’s display, a lasting tribute to a woman her family remembers as someone who shone brightly in her own right.
Melissa’s siblings have said that no sentence handed down in court could undo what their family lost.
What remains, they said, is the memory of a sister and daughter who spent her life caring for others and who was, until her final day, preparing to do the same for her own son.
