Mangione Pleads Guilty in Federal Case, State Murder Trial Set for September

Luigi Mangione has pleaded guilty to federal stalking charges in connection with the December 2024 killing of UnitedHealthcare CEO Brian Thompson, closing one of two legal cases against him. His state murder trial is scheduled to begin on September 8.

Thompson, 50, was fatally shot outside a New York City hotel on December 4, 2024, as he headed to UnitedHealth Group's annual investor conference. Mangione was arrested five days later at a McDonald's in Altoona, Pennsylvania, roughly 375 kilometers west of New York City.

A timeline of key events in the case:

• November 24: A man prosecutors identify as Mangione arrives in New York by Greyhound bus, takes a taxi to the area near the New York Hilton Midtown, and checks into a hostel using a fake New Jersey driver's license under the name Mark Rosario.
• December 2: Thompson arrives in New York and stays at a hotel across the street from the Hilton.
• December 4: Thompson is shot and killed. The shooter waits about an hour before ambushing him, then flees through Central Park, takes the subway to Penn Station, and boards an Amtrak train to Philadelphia. The shooting is captured on surveillance video.
• December 5-6: Police release images of the suspect, including one from the hostel check-in. A backpack found in Central Park contains Monopoly money and a black Tommy Hilfiger jacket.
• December 9: Mangione is arrested at a McDonald's after a manager reports a man resembling the suspect. He initially gives a fake ID and name, then identifies himself. Police find a 3D-printed pistol and a notebook referencing a desire to "wack" a health insurance executive.
• December 11-19: Mangione is extradited to New York after a contentious court appearance in Pennsylvania. He is charged federally with stalking and murder.
• December 23: Mangione pleads not guilty to state murder and terror charges, with his lawyer criticizing the dual prosecutions.
• April 1: Then-U.S. Attorney General Pam Bondi directs federal prosecutors to seek the death penalty, calling the killing a "premeditated, cold-blooded assassination."
• April 25: Mangione pleads not guilty to a federal murder charge as prosecutors formally seek capital punishment.
• September 16: A state judge throws out terrorism charges, eliminating the possibility of a mandatory life sentence without parole.
• December 1: A three-week evidentiary hearing begins, with prosecutors presenting witnesses and body-camera footage.
• January 30: A federal judge bars the death penalty, dismissing the murder charge that allowed it.
• February 6: Mangione tells the court that back-to-back trials would amount to "double jeopardy by any commonsense definition."
• May 18: A state judge allows the gun and notebook as evidence but excludes items taken before Mangione was in custody.
• June 17: Mangione initially plans a psychiatric defense, then reverses course the next day.
• August 14: Mangione pleads guilty in the federal case.