Prosecutors Reveal Luigi Mangione Diary Detailing CEO Assassination Plot

Prosecutors have revealed diary entries from Luigi Mangione’s red notebook that detail his months-long planning and ideological reasoning behind the assassination of UnitedHealthcare CEO Brian Thompson in December 2024. The diary shows Mangione targeted Thompson as a symbolic act against the health insurance industry, which he described as a 'deadly, greed fueled health insurance cartel,' and he sought to avoid civilian casualties, emphasizing a precise killing at a public investor conference. Mangione’s writings also reference the Unabomber Ted Kaczynski, with Mangione criticizing indiscriminate violence while endorsing targeted attacks to spread his message. Despite this evidence, Mangione has pleaded not guilty to all charges, including murder and terrorism enhancements, with prosecutors asserting the diary entries prove premeditation and ideological motive. The case has drawn national attention, highlighting public frustration with the health insurance system and concerns over politically motivated violence. Authorities arrested Mangione after a five-day manhunt, during which they recovered the diary that has become central to the prosecution's argument for the death penalty.