Nicole Virzi Pleads Guilty in Death of Six-Week-Old Leon Katz

A plea deal closes the case without a trial

Nicole Virzi has pleaded guilty to killing six-week-old Leon Katz and injuring his twin brother, Ari, while caring for them at their family home in Pittsburgh. The 32-year-old entered the plea on Wednesday to third-degree criminal homicide, aggravated assault and endangering the welfare of children. A guilty plea settles her criminal responsibility without requiring a jury to hear the case, and it brings the process toward sentencing.

Leon’s mother, Savannah Roberts, said in a victim impact statement that the crime had “eradicated my sense of safety across every domain of my life.” She said she would never fully understand “the torture and murder that Nicole inflicted on my twins.” Her remarks describe a harm that reaches beyond the immediate loss: the ordinary confidence involved in leaving a child with someone trusted has, in her account, been permanently changed.

The plea agreement means the family will not have to go through a full trial, according to the district attorney, as reported by the Daily Mail. Virzi now faces a prison term of between 35 and 80 years. That range leaves sentencing as a significant next step, even though the plea has resolved the question of guilt. A trial would have required Roberts and other witnesses to revisit the evidence in court; avoiding that process can spare a family some exposure, though it cannot undo the loss.

Virzi was a clinical psychology doctoral student who had been weeks from completing her PhD. She met Roberts while they were working in Drexel University’s graduate psychology department in Philadelphia. That prior relationship is part of why the case has resonated: the children were in the care of someone their family knew, rather than a stranger encountered through an impersonal arrangement. The detail offers context, but it doesn’t explain or excuse the violence.

What happened in June 2024

Virzi was staying with Roberts, her husband Ethan Katz and the newborn twins when the boys were injured. On June 15, she reported a bloody injury near Ari’s groin and urged that he be checked at a hospital. She stayed with Leon while his parents took Ari for medical care. The sequence placed Virzi alone with Leon while the family was responding to concern about his brother.

At about 11.17pm, Virzi called police, saying Leon was struggling to breathe and had a lump on his head. He died hours later from brain bleeding and a skull fracture. Virzi was arrested at her Airbnb a few hours afterward. The initial call and the later medical findings form part of the timeline that investigators examined, but the plea means the case won’t be tested in a full trial.

She first denied hurting Leon, telling investigators she had heard him scream while she went to get a bottle and believed he had fallen from his bouncer. She later admitted shaking and dropping him, and flipping him upside down onto a tiled bathroom floor. She also confessed to causing Ari’s injuries. The shift from denial to admission is central to the account of how investigators established what happened, although her lawyers later challenged the conditions under which she made her confession.

In a recorded interview, Virzi said: “Something just came over me I couldn’t control.” She also told investigators that, from a young age, she had felt a compulsion to hurt children. Her lawyers argued that the confession followed 13 hours in custody with little sleep and no food; the judge rejected their motion. That ruling allowed the case to proceed on the evidence, while leaving the distressing claims about her stated compulsions as part of the record. A claim of compulsion, on its own, doesn’t answer the questions a court must resolve about responsibility.

Roberts describes the lasting impact

Roberts disputed Virzi’s account of uncontrollable compulsions, saying those claims did not excuse her actions. She said she is “constantly consumed with intrusive images of what Nicole did to him and his brother,” who is now two, according to TribLive. Her statement points to the continuing strain of caring for a surviving child while carrying memories of what happened to both boys.

The memories of Leon’s final night, Roberts said, have overwhelmed her recollections of the six weeks she had with him. She wants to remember “the bright light he was on this Earth” and the short time they shared, rather than what he suffered at the end of his life. That effort to protect the memory of a child from the circumstances of his death is one of the most painful details in the case. It’s a struggle with no simple resolution.

What the plea leaves in focus

The plea closes the path to a trial, but it doesn’t reduce the case to a procedural outcome. The admitted violence, the injuries to both infants and Roberts’s account of the aftermath remain the central facts for readers trying to understand the human consequences. This is more significant than it looks: a courtroom resolution can end one stage of a case while the family continues to live with its effects.

That said, the absence of a trial also means there won’t be a full public examination of every disputed detail through witness testimony and cross-examination. The court rejected the challenge to Virzi’s confession, and she has now pleaded guilty to the charges described. Those facts establish the legal outcome reported here; they don’t give the family a way to recover the time they had with Leon or to make sense of the harm to Ari.

If you’re working in child care or supporting a family after a traumatic loss, the account underlines how quickly an ordinary caregiving arrangement can become inseparable from questions of trust and safety. There’s no broad lesson that can explain this particular violence away. The immediate next step is sentencing, with Virzi facing between 35 and 80 years in prison, while Roberts’s statement makes clear that the family’s reckoning with the loss will continue well beyond the court process.