NEW YORK (AP) 鈥� Luigi Mangione鈥檚 guilty plea Friday to federal stalking charges in the Brian Thompson resolved one of two cases against him in the executive’s death. He is scheduled to go on trial on state murder charges on Sept. 8.
was shot on Dec. 4, 2024, as he walked to UnitedHealth Group鈥檚 annual investor conference. Mangione was arrested five days later at a McDonald鈥檚 restaurant in Altoona, Pennsylvania, about 233 miles (375 kilometers) west of New York City.
Here is a timeline of key events:
2024
Nov. 24: A man prosecutors say is Mangione on a Greyhound bus. He takes a taxi to the area of the New York Hilton Midtown, where Thompson is later shot, then goes to a hostel where he stays until the morning of the shooting. While checking in, prosecutors say, the man presents a fake New Jersey driver鈥檚 license bearing the name Mark Rosario.
Dec. 2: Thompson arrives in New York. He is staying at a hotel across the street from the Hilton.
Dec. 4: Thompson is shot and killed. The shooter, later identified by prosecutors as Mangione, waits in the area for about an hour before ambushing Thompson. He then flees through Central Park to upper Manhattan before taking the subway to Penn Station and boarding an Amtrak train to Philadelphia, police say. The shooting is captured on surveillance video.
Dec. 5: In the days after the shooting, police of the suspected shooter, including one showing his face as he checked into the hostel.
Dec. 6: Police that they say the shooter discarded as he fled. It contains Monopoly money and a black Tommy Hilfiger jacket.
Dec. 9: Altoona police are dispatched to a McDonald鈥檚 for a report of a man matching the description of the suspect in Thompson’s killing. The man provides a fake ID and name, Mark Rosario, before identifying himself as Luigi Mangione. He is arrested. In his backpack, police find a 3D-printed pistol prosecutors say matches the one used to kill Thompson and a notebook that describes wanting to 鈥渨ack鈥� a health insurance executive.
Dec. 11: Mangione and writhes in the grip of sheriff鈥檚 deputies as they lead him into an Altoona courthouse.
Dec. 19: Mangione is extradited from Pennsylvania and flown to New York. by armed officers in a highly choreographed perp walk in front of news cameras. The mayor at the time, Eric Adams, and Police Commissioner Jessica Tisch look on. Mangione is taken to federal court, where he is charged with stalking and murder.
Dec. 23: Mangione is arraigned on state murder and terror charges. He while his lawyer complains that the dueling federal and state prosecutions had turned him into a 鈥渉uman ping-pong ball.鈥�
2025
April 1: Then-U.S. Attorney General Pam Bondi says she has directed federal prosecutors to , calling Thompson’s killing 鈥渁 premeditated, cold-blooded assassination that shocked America鈥� and 鈥渁n act of political violence.鈥�
April 25: Mangione as prosecutors formally declared their intent to seek the death penalty against him.
Sept. 16: The judge in the state case, Gregory Carro, rejecting the prosecution鈥檚 theory that the killing was 鈥渋ntended to evoke terror.鈥� The ruling eliminated the top two charges in Mangione鈥檚 state case, sparing him the possibility of a mandatory life sentence without the possibility of parole. Carro keeps other charges in place, including second-degree murder.
Dec. 1: A three-week . Prosecutors call 17 witnesses, many of them police officers and other personnel involved in his arrest, and play body-camera footage of officers arresting Mangione and a 911 call from the McDonald’s manager about a man resembling 鈥渢he CEO shooter.鈥� They also reveal notes about a 鈥渟urvival kit鈥� and 鈥渋ntel checkin鈥� and possible escape plans that they say Mangione had with him.
2026
Jan. 30: U.S. District Judge Margaret Garnett against Mangione, dismissing a federal murder charge that enabled them to seek capital punishment. Garnett also rules that prosecutors can use evidence collected from Mangione鈥檚 backpack during his arrest.
Feb. 6: against the prospect of back-to-back trials, telling Carro: 鈥淚t鈥檚 the same trial twice. One plus one is two. Double jeopardy by any commonsense definition.鈥�
May 18: Carro rules that prosecutors in the state case can use the gun, notebook and other items that police found in Mangione鈥檚 backpack after his arrest. However, the judge bars items that officers took from the bag before Mangione was taken into custody, including a loaded gun magazine, cellphone, passport and wallet.
June 17: Carro discloses that Mangione at his state murder trial, claiming he was suffering from extreme emotional disturbance when he killed Thompson. The next day, Mangione’s lawyers reverse course and tell Carro he .
Aug. 14: Mangione in the federal case.
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