5 days ago
Luigi Mangione's Chilling Diary Reveals Motive on CEO Killing
A red notebook could hold the motive behind one of the most jarring killings in corporate America.
ABC News reported that according to a new court filing, diary entries written by 27-year-old Luigi Mangione reveal his thinking before he allegedly gunned down UnitedHealthcare CEO Brian Thompson in Manhattan last December. Mangione, who has pleaded not guilty to all charges, was arrested hours later at a McDonald's in Pennsylvania.
The handwritten entries detail Mangione's rage against the health insurance industry and his belief that a high-profile killing could ignite a broader conversation. 'The target is insurance,' he wrote in August 2024. 'It checks every box.'
The Manhattan District Attorney's Office filed the notebook excerpts in response to Mangione's legal team, which sought to pause or dismiss the case. Prosecutors argue that the writings—alongside the fact that shell casings at the scene were etched with the words 'delay,' 'deny' and 'depose'—show clear intent to commit murder in furtherance of terrorism.
Mangione, a former Ivy League student from a privileged background, allegedly viewed the killing as a way to strike at what he saw as systemic greed. 'Do you bomb the HQ? No. Bombs=terrorism,' he wrote. 'Targeted, precise and doesn't risk innocents.'
Prosecutors say the killing triggered a cascade of threats against health insurance employees, forcing UnitedHealthcare to pull executive headshots from its website, hire private security, and advise employees to stop wearing branded clothing.
Despite the violence, Mangione has become a cult-like figure to some online. A legal defense fund has raised more than $1 million, and many frustrated with rising health costs have voiced support.
The motive, authorities argue, wasn't personal. It was symbolic. 'He chose UHC solely because they were the largest,' the filing reads. The entry explains Mangione's motive in this high-profile, shocking case.
Luigi Mangione's Chilling Diary Reveals Motive on CEO Killing first appeared on Men's Journal on Jun 6, 2025
