Luigi Mangione pleaded guilty on Friday to federal charges related to the killing of health insurance executive Brian Thompson. The 28-year-old entered the plea for two counts of stalking Thompson with the intent to kill, an action that exposes him to a maximum penalty of life in prison. Following the plea, a federal judge scheduled his sentencing for mid-December.
The case follows a December 2024 arrest and a five-day manhunt for Mangione. While federal proceedings moved forward on Friday, Mangione also faces state-level charges of murder and weapons possession in a separate case. He has pleaded not guilty to those state charges, and a trial had been scheduled to begin on September 8.
Immediately following his federal guilty plea, Mangione's defense team filed a motion to dismiss the state charges. They argued that New York's double jeopardy law prevents the state from prosecuting him for the same underlying conduct addressed in federal court. The Manhattan District Attorney’s office stated they are prepared to litigate the motion, though a ruling date has not been set.
For the legal system, the case serves as a test of New York’s double jeopardy protections. Legal experts noted that the state would face a challenge in proceeding with a murder trial if the court finds the federal stalking charges cover the same criminal conduct. If the defense motion succeeds, the scheduled September 8 state trial would be canceled, shifting the entirety of the penal outcome to the federal sentencing process.
Mangione remains in custody at the Metropolitan Detention Center in Brooklyn, a facility that currently houses other high-profile individuals such as Nicolas Maduro. He will remain there until his federal sentencing on December 18, after which he is expected to be transferred to a federal prison. The final determination on his sentence and the status of his state charges are expected to conclude by the end of 2026.