Killing of Brian Thompson
2024 killing of United Healthcare's CEO in New York City, US

On December 4, 2024, Brian Robert Thompson, the CEO of the American health insurance company UnitedHealthcare, was shot and killed by 26-year-old Luigi Mangione outside the New York Hilton Midtown in Manhattan, New York City, where Thompson was heading to attend an investors' meeting.
The perpetrator, initially described as a white man wearing a mask, fled the scene. The words "delay", "deny", and "depose" were inscribed on the cartridge cases used during the shooting. On December 9, 2024, authorities arrested Mangione in Altoona, Pennsylvania, and charged him in a Manhattan court with Thompson's killing. Authorities alleged that when Mangione was apprehended, he was carrying a 3D-printed pistol and a 3D-printed suppressor consistent with those used in the attack; a short handwritten letter criticizing the American healthcare system; an American passport; and multiple fraudulent IDs, including one with the same name used to check into a hostel on the Upper West Side of Manhattan.
Mangione was indicted on eleven state charges and four federal charges; the charges include first-degree murder, murder in furtherance of terrorism, criminal possession of a weapon, and stalking. His terrorism-related murder charges in the New York state's case were dismissed in September 2025. A judge dismissed two federal charges in January 2026, ruling that prosecutors could not seek the death penalty against Mangione. On August 14, 2026, Mangione pleaded guilty to the federal stalking charges and admitted to shooting Thompson, stating that he was motivated to shoot the CEO "after years of enduring severe pain from a broken back, navigating the obstacles of the health insurance system and witnessing similar experiences of countless others".
Thompson's death received widespread attention in the United States and led to polarized reactions.
The public source identifies “Killing of Brian Thompson” as 2024 killing of United Healthcare's CEO in New York City, US. This brief keeps that definition visible, then builds a research path around Killing, Brian and Thompson.
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This entry incorporates text from “Killing of Brian Thompson” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.