Queens man gets 115 years to life for killing NYPD officer Jonathan Diller

A Queens judge sentenced Guy Rivera to 115 years to life in prison on Monday, closing a case that turned the killing of NYPD officer Jonathan Diller into both a courtroom reckoning and a larger test of how far the justice system will go to answer violence against police.

Judge Michael Aloise told Rivera he would spend the rest of his life in prison after a jury convicted him of aggravated manslaughter in the first degree, attempted murder in the first degree and criminal possession of a weapon. Queens prosecutors said the sentence was built from three consecutive 25-years-to-life terms plus 40 years to life, reflecting separate counts tied to the fatal shooting of Diller and Rivera’s attempted shooting of NYPD Sgt. Sasha Rosen.

The shooting happened on March 25, 2024, in Far Rockaway, Queens, around 5:45 p.m. on Mott Avenue near a city bus stop. Prosecutors said Rosen noticed a gun-shaped bulge in Rivera’s sweatshirt before officers moved in during a traffic stop. According to trial testimony, Rivera was seated in the passenger seat when he drew a gun and fired, striking Diller below his bulletproof vest and mortally wounding him. Another officer shot and wounded Rivera in return. The NYPD’s fallen-heroes record identifies Diller as then-Police Officer Jonathan E. Diller of the Queens South Community Response Team.

The sentencing hearing drew a courtroom full of uniformed officers and Diller’s relatives, underscoring how the case has come to stand for the danger of routine patrol work and the emotional cost borne by police families. The Queens District Attorney’s Office said Diller’s last words to his wife were “I love you,” a detail that sharpened the grief surrounding the proceeding. Stephanie Diller and Diller’s mother delivered emotional victim-impact statements and denounced Rivera in open court.

Queens District Attorney Melinda Katz said Rivera ignored lawful police commands and endangered both Diller and Rosen. Prosecutors portrayed Rivera as a persistent felon who made a calculated decision to use violence; Rivera’s defense argued the gun discharged accidentally as officers tried to recover it. The jury rejected a murder charge but still found him guilty of serious felony counts, a verdict that left the court to convert outrage and loss into a term that would keep Rivera in prison for the rest of his life.

Diller’s death quickly became a political flashpoint. Mayor Eric Adams said on March 25, 2024, that the city had “lost Jonathan tonight,” and his funeral on March 30 drew public officials and police leaders. Donald Trump attended Diller’s wake on March 28, helping propel the case into the 2024 national debate over crime, policing and officer safety. Monday’s sentence answered the case in legal terms, but it also reflected a broader message from prosecutors and judges: that the system is trying to make routine violence against officers carry the heaviest possible price, even as questions remain about whether a sentence this severe does more than symbolize deterrence.