Syosset Teen Sentenced to 12 Years in Prison for Fatal Stabbing of 15-Year-Old Boy
The District Attorney of Suffolk County, New York, announced on November 4, 2026, that Aiden Zachary, 18, of Syosset, was sentenced to 12 years in prison, to be followed by five years of post-release supervision, for fatally stabbing 15-year-old Liam Delemo at a house party in West Babylon. Zachary had previously pleaded guilty to Manslaughter in the First Degree.
According to court documents and Zachary's admissions during his guilty plea allocution, on November 3, 2025, at approximately 10 p.m., Zachary arrived uninvited at a large house party in West Babylon. Zachary, who was 17 at the time, was asked to leave and became embroiled in an altercation with the victim. Moments later, Zachary took out a knife and stabbed the victim in the abdomen and arm, then immediately fled. The victim was rushed to Good Samaritan hospital, where he was later pronounced deceased. Zachary was arrested on November 10, 2025.
On October 15, 2026, Zachary pleaded guilty before Acting Supreme Court Justice Karen Kerr to Manslaughter in the First Degree, a class B violent felony. On November 4, 2026, he was sentenced to 12 years in prison followed by five years of post-release supervision. He is represented by Jacon Kaplan, Esq.
"This case is nothing short of tragic. The defendant's violent behavior will follow him, and affect the lives of multiple families, long after his sentence is served," District Attorney Raymond A. Tierney said. "We hope the young victim's loved ones find a measure of solace in knowing that justice was served." The case was prosecuted by Assistant District Attorney Sheetal Shetty of the Homicide Bureau, and the investigation was conducted by Detective Frankie Sierra of the Suffolk County Police Department's Homicide Squad.
Source: Suffolk County District Attorney's Office
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