Luigi Mangione's Diary Reveals CEO Murder Plot

Luigi Mangione, 27, allegedly assassinated UnitedHealth Group — UnitedHealth Group CEO Brian Thompson in December 2024, an act he meticulously planned and documented in diary entries. These writings, recently unsealed by the United States — Harris County District Attorney s Office, reveal Mangione's deep frustration with the health insurance industry and his intent to spark a 'revolutionary change' by targeting a prominent executive. He chose UnitedHealth Group — UnitedHealth Group as a symbol of the industry, believing a targeted killing would be more effective than a bombing in conveying his message against 'corporate greed' and the American for-profit health care system. The diary entries detail his shift from considering a mass-casualty attack to a precise assassination, aiming to avoid harming 'innocents' and to ensure his message resonated with the public. Following Thompson's death, UnitedHealth Group — UnitedHealth Group and other health insurance companies, including EmblemHealth, experienced a barrage of threats, leading to heightened security measures, employee fears, and some physicians quitting their jobs. Prosecutors are using Mangione's diary as key evidence to argue for a terrorism enhancement to his first-degree murder charge, emphasizing his premeditated intent to broadcast a social and political message. Mangione has pleaded not guilty to all charges, and a legal defense fund in his support has raised over $1 million, reflecting public frustration with the healthcare system.