Teen Sentenced to 12 Years in Prison After Stabbing 15-Year-Old Boy to Death at Long Island House Party

An 18-year-old New York teenager has been sentenced to 12 years in prison after admitting to fatally stabbing 15-year-old Liam Delemo during a massive house party in West Babylon, Long Island. Aiden Zachary was just 17 when the deadly confrontation happened in November 2025. What began as a gathering involving nearly 100 teenagers ended in tragedy after Zachary and his friends were reportedly asked to leave the party.

The incident took place on November 3, 2025, at a home on Carlton Road. According to prosecutors, Zachary arrived with two friends despite not being invited. When the group was told to leave, an argument escalated into a physical confrontation involving Liam. Authorities said Zachary stabbed the younger teenager in the abdomen and arm before fleeing the scene. Liam was rushed to Good Samaritan Hospital, where doctors attempted to save his life, but he died during surgery.

Zachary was arrested approximately one week later and initially charged with second-degree murder. Prosecutors said the stabbing occurred around 10:25 p.m., when between 90 and 100 teenagers were gathered at the property. His defense attorney offered a different account of how the confrontation began, claiming that other partygoers threw drinks and objects at Zachary and his friends as they were leaving. The attorney acknowledged, however, that Zachary’s actions caused Liam’s death.

In October 2026, Zachary pleaded guilty to first-degree manslaughter as part of a plea agreement. On November 4, exactly one year and one day after the fatal stabbing, a judge sentenced him to 12 years in state prison followed by five years of post-release supervision. During the sentencing hearing, Zachary apologized to Liam’s family, saying he lived with regret every day and wished he could take back what happened.

For Liam’s parents, the sentence cannot undo the loss of their only child. They described him as a bright student with a promising future who was just weeks away from his 16th birthday. Liam had dreams of eventually owning an HVAC business and enjoyed spending time with his close group of friends. His mother spoke emotionally about the empty space left behind, describing how his belongings remained untouched at home since his death.

The homeowner, Bonnie Miranda, who is the grandmother of the teenager hosting the party, also faced charges related to violating Suffolk County’s Social Host Law and endangering a child’s welfare. Prosecutors said the case should serve as a warning about the consequences of carrying weapons and allowing dangerous confrontations to escalate among young people. For Liam’s family, however, the most important part of the story is the future their son never got to experience.

Source: https://lawandcrime.com/crime/teen-who-was-thrown-out-of-massive-house-party-got-mad-and-stabbed-a-15-year-old-to-death/