Luigi Mangione's state murder trial postponed after federal guilty plea in CEO killing

Luigi Mangione's state murder trial has been postponed indefinitely after he pleaded guilty to federal stalking charges in connection with the 2024 killing of UnitedHealthcare CEO Brian Thompson. Mangione, 28, admitted in federal court on August 14, 2026, that he shot Thompson in Midtown Manhattan. He faces a maximum sentence of life in prison, with sentencing scheduled for December 18, 2026.

Following his federal guilty plea, Mangione's lawyers filed a motion to dismiss the separate state murder charges, citing double jeopardy laws which prevent an individual from being prosecuted twice for the same crime. The New York state trial, which was initially set to begin on September 8, will not proceed as planned.

A New York judge has requested that prosecutors respond to the defense's motion to dismiss by October 9, 2026, with the next state court hearing scheduled for December 10, 2026. The Manhattan District Attorney's office has indicated its intention to contest the dismissal of the state case.