The plea canceled a trial that was set to begin days later and moved the case to sentencing in Chautauqua County Court.

JAMESTOWN, N.Y. — A 27-year-old Jamestown man pleaded guilty in Chautauqua County Court to first-degree manslaughter in the death of his 16-month-old son, admitting before trial that he caused the child’s fatal injuries in April 2024, prosecutors and local officials said.

The plea abruptly ended a case that had been headed toward jury selection and had drawn close attention in western New York because of the severity of the child’s injuries and the age of the victim. Prosecutors said Matthew Nuttall caused the death of Isaac Benton by blunt force trauma after throwing the boy onto a Pack ’n Play while he was caring for him. The case became part of a wider reckoning in Chautauqua County, where officials publicly linked several child homicide cases from the same month and described them as a warning about violence against children.

Authorities traced the case back to April 13, 2024, when Isaac Benton, who was 16 months old, suffered the injuries that killed him at a home on Maple Street in Jamestown. Investigators later alleged that Nuttall, who was then 25, threw the toddler onto a Pack ’n Play playpen while watching him. Prosecutors said the child died from blunt force trauma. The account that emerged in court and in later public statements was stark. District Attorney Jason Schmidt said Isaac was “slammed onto a Pack ’n Play” with force so extreme that the condition of the child’s spine stood out even during the autopsy. That description quickly became the most widely cited detail in the case and helped explain why prosecutors pursued the top charge. Jamestown police opened the investigation after receiving a report of a suspicious child death on April 15, 2024. Two days later, officers arrested Nuttall, beginning a prosecution that would continue for nearly two years before ending in a guilty plea.

The formal charges came in June 2024, when a Chautauqua County grand jury indicted Nuttall on first- and second-degree manslaughter counts. Schmidt’s office said at the time that Nuttall was accused of intentionally throwing Isaac onto the portable playpen and causing the boy’s death. County court set bail at $1 million cash or a $500,000 property bond after a superseding indictment, according to the district attorney’s office. Officials also said the investigation depended on work by Jamestown police, juvenile detectives and the county coroner. Schmidt said the case moved forward in part because a coroner questioned the story first given to responders and suspected abuse. That detail mattered because it suggested the case did not begin with an immediate confession or a simple medical explanation. Instead, prosecutors said, investigators had to piece together what happened inside the home and rely on physical evidence, medical findings and witness interviews. Public records released so far do not answer every question about who else was in the home at the time, what was first reported to emergency responders, or whether earlier warning signs had been documented before the child’s death.

By February 2026, the case was close to trial. Jury selection had been scheduled to begin Feb. 24, but Nuttall pleaded guilty during a final pretrial conference on Feb. 18, according to prosecutors and local media accounts. The plea was notable not only because it came late, but because officials said it was entered unexpectedly and to the most serious charge in the indictment. That spared Isaac’s family, investigators and medical witnesses from a public trial centered on the toddler’s injuries. It also gave prosecutors a conviction without forcing them to litigate every detail before a jury. Schmidt, who called the case one of those that “hit the hardest,” said crimes against very young children had weighed heavily on his office. In remarks released after the plea, he grouped Isaac’s death with two other child homicide cases from April 2024 in Chautauqua County. His comments widened the frame of the case beyond one household, presenting it as part of a grim stretch that local officials said they had never expected to see in such a short time. The comparison did not change the facts of Isaac’s case, but it underscored why the prosecution drew strong public reaction in Jamestown and beyond.

Officials have described the medical findings in unusually blunt terms, but many other facts remain outside the public record. Prosecutors have said Isaac died from blunt force trauma and have tied that trauma to being thrown onto the Pack ’n Play. They have not publicly laid out, in full, the sequence of minutes before the fatal injuries, whether anyone else witnessed the act, or what emergency aid was attempted before the child was pronounced dead. No detailed probable-cause affidavit has been widely circulated in the public coverage that followed the plea, leaving some procedural gaps. Still, the pieces that are public are consistent on the central point: authorities concluded that the toddler’s injuries were not accidental. Jamestown Police Sgt. Daniel Overend said the department’s investigative section worked “efficiently and effectively” to build the case and bring the arrest. He also said the department could not imagine the pain Isaac’s family was facing as the case moved into sentencing. The county coroner’s office was credited alongside police and prosecutors, an acknowledgment that the medical review helped shape the criminal case from its early stages. In child death prosecutions, those findings often define the line between suspicion and chargeable proof, and here officials made clear they viewed the evidence as strong enough to carry the case to trial before the plea ended it.

The legal path now turns to sentencing. After pleading guilty to first-degree manslaughter, Nuttall is scheduled to be sentenced on April 20, 2026, in Chautauqua County Court. Because the plea was to the top count, the sentencing hearing is expected to be the next major public step in the case. Court officials and prosecutors have not publicly detailed any agreed sentence in the reports released after the plea, so the exact punishment was not immediately clear from those accounts. It also was not clear whether family members planned to speak in court or whether prosecutors would present additional victim-impact evidence at sentencing. What is clear is that the guilty plea canceled the planned trial and replaced it with a narrower proceeding focused on penalty rather than guilt. That change matters for both sides. For prosecutors, it locks in a conviction and avoids the risk and burden of a jury trial. For the family, it may prevent another extended airing of the autopsy findings and other painful evidence. For the court, it compresses the remaining public process into a single hearing that is likely to draw attention because of the victim’s age and the violence described by officials. Unless new motions are filed before then, April 20 is the next date likely to define where the case stands.

The case has also left a lasting mark on local officials who rarely speak publicly in such emotional terms. Schmidt said the April 2024 child homicide cases were “horrific and heart-wrenching” and “senseless and completely avoidable,” language that reflected both outrage and exhaustion inside the justice system. Overend struck a more formal tone but still framed the coming sentencing as a moment that must match the seriousness of the crime. He said justice is not served by either excess or leniency that diminishes wrongdoing, and added that police hoped the sentence would reflect what Nuttall had done. Those statements did not add new facts about Isaac’s final hours, but they showed how forcefully local officials wanted the plea understood. In Jamestown, the story was never only a court matter. It was also a case about a very young child, a home where he should have been safe, and a death that investigators came to view as abuse rather than tragedy alone. Isaac’s name now appears in court records and news reports that trace the case from suspicious death to indictment to guilty plea. The next hearing will decide punishment, but the plea has already settled the basic criminal question that had hung over the case for nearly two years.

The case stood, as of mid-March 2026, at the point between conviction and sentencing, with Nuttall due back in court on April 20. Barring a change in schedule, that hearing is the next milestone in a prosecution that ended short of trial but left many of its hardest facts undiminished.