Key Point Summary – New Luigi Mangione Evidence

• Diary reveals Luigi Mangione planned the CEO’s murder months in advance.
• He called the health system “mafioso” and slammed Ted Kaczynski’s strategy.
• Mangione targeted UnitedHealthcare for its “greed” and “parasitic” role.
• He detailed plans to avoid innocent casualties by skipping bomb use.
• Prosecutors call the case “open and shut” as Mangione pleads not guilty.

Murder Diary Shocks Court

Chilling new evidence has surfaced in the Luigi Mangione case, as prosecutors unveiled bombshell diary entries showing the 27-year-old plotted the execution-style murder of UnitedHealthcare CEO Brian Thompson months before the December 2024 killing.

The red notebook — seized after Mangione’s arrest at a McDonald’s in Altoona, Pennsylvania — lays out not only his plan, but also his twisted manifesto. He wrote about ethics, strategy, and how to send a message without being dismissed as “just another angry lunatic.”

In one entry dated August 15, he proudly declared, “I finally feel confident about what I will do.” He claimed the murder was “justified,” adding that it checked “every box.”

Unabomber Comparisons And ‘Insurance Mafia’

Mangione spent pages analyzing infamous terrorist Ted Kaczynski. While he acknowledged the Unabomber’s warnings about tech and control, he criticized his methods. “Mailbombs = terrorism,” Mangione wrote. “He becomes a monster, so his ideas become those of a monster.”

Instead, Mangione vowed to be more “surgical.” His goal? Eliminate a high-profile health exec to expose the “greed-fueled health insurance cartel” without harming innocent bystanders.

That led him to target UnitedHealthcare’s CEO — specifically at the company’s “parasitic bean-counter convention,” where, he wrote, “the point is made in the news headline.”

Message In The Bullets

On December 4, Thompson was gunned down outside the Hilton in Midtown Manhattan. Surveillance caught the masked killer fleeing on a bike. Shell casings at the scene bore the words “deny,” “delay,” and “depose” — terms Mangione associated with predatory insurance practices.

The night before the shooting, prosecutors say, Mangione was spotted following Thompson near the hotel. It may have been a missed opportunity or one final stalk before the fatal strike.

Authorities believe the diary entries — including a countdown and detailed justifications — remove all doubt about premeditation. One note even apologizes “to the feds,” and claims “it had to be done.”

Cult Hero Or Cold Killer?

Despite the gruesome evidence, Mangione has pleaded not guilty to state and federal charges. Prosecutors have vowed to seek the death penalty.

Incredibly, Mangione has developed a cult-like following. Supporters pack his court appearances and have raised over $1 million for his legal fund. Some have labeled him a whistleblower against healthcare corruption.

But prosecutors aren’t buying it.

“This case is open and shut,” Manhattan Assistant DA Joel Seidemann said. “One would be hard pressed to find a case with such overwhelming evidence.”

Diary Fuels Legal War

Mangione’s lawyers are fighting back. They claim trying him in both state and federal court amounts to double jeopardy. But prosecutors argue that the terrorism enhancements are justified by his “political and ideological motivation.”

His diary, they say, proves it.

In one final, cryptic entry, Mangione tells investigators to “look to the straggling notes and TO DO lists” to understand the truth. One of those notes referred to an earlier plan to target “KMD,” but he scrapped it, writing it would be “perceived as sick, but more importantly, unhelpful.”

He then zeroed in on Thompson, calling the December investors conference a “true windfall” that “embodies everything wrong with our health system.”

Mangione is due in court again on June 26. The question now isn’t just whether he pulled the trigger — it’s whether the court will allow his manifesto to become a rallying cry.