Luigi Mangione evidence bombshell as his intimate diary entries are revealed

The bombshell diary entries of Luigi Mangione have been made public, revealing his alleged detailed planning of the assassination of UnitedHealthcare CEO Brian Thompson months prior to the December shooting in Manhattan.

Prosecutors disclosed in court documents filed on Wednesday that Mangione had a red notebook diary in his possession when he was apprehended at a McDonald’s in Altoona, Pennsylvania, at the conclusion of a five-day chase.

According to the filings, the diary chronicled Mangione’s scheme for the assassination and his contemplations on how the Unabomber Ted Kaczynski erred during his own era of terror spanning from 1978 to 1995.

In one entry from August 15, 2024, Mangione writes that he is ‘confident’ about his plan – four months before the shooting took place – and that it is ‘right/justified.’

‘I finally feel confident about what I will do. The details are coming together. And I don’t feel any doubt about whether it’s right/justified,’ his scrawling writing reads.

‘I’m glad-in a way-that I’ve procrastinated bc [sic] it allowed me to learn more about UHC [UnitedHealthcare].’

The same diary entry appears to suggest Mangione had previously considered a different target – detailed as ‘KMD’ – before deciding upon UnitedHealthcare, and its CEO.  

‘KMD would have been an unjustified catastrophe that would be perceived mostly as sick, but more importantly unhelpful,’ he writes. 

‘Would do nothing to spread awareness/improve people’s lives. The target is insurance. It checks every box.’

It is unclear what KMD refers to. 

Luigi Mangione appears in court in Manhattan in February 2025 on charges of murder

Luigi Mangione appears in court in Manhattan in February 2025 on charges of murder 

In another diary entry dated two months later on October 10 2024, Mangione allegedly notes a countdown to the day of the attack: ‘1.5 months.’

He goes on to write about the Unabomber’s actions and considers that a similar plot would distract from the message he was trying to send – and would not fare well with the public.

While Kaczynski ‘makes some good points on the future of humanity,’ Mangione muses that ‘he indiscriminately mailbombs innocents.’

‘Normies characterize him as an insane serial killer, focus on the act/atrocities themselves and dismiss his ideas,’ he writes.

‘So say you want to rebel against the deadly, greed fueled health insurance cartel. Do you bomb the HQ? No. Bombs=terrorism,’ the note reads. 

‘Such actions appear the unjustified anger of someone who simply got sick/had bad luck and took their frustration out on the insurance industry, while recklessly endangering countless employees.’

Instead, Mangione allegedly details his own plans to ‘wack’ the CEO of the healthcare giant at the company’s ‘parasitic bean-counter convention’ as it ‘doesn’t risk innocents… The point is made in the news headline ‘Insurance CEO killed at annual investors conference.’’

Luigi Mangione 's bombshell diary entries reveal how he meticulously planned the alleged assassination of UnitedHealthcare CEO Brian Thompson

Luigi Mangione ‘s bombshell diary entries reveal how he meticulously planned the alleged assassination of UnitedHealthcare CEO Brian Thompson

In another scrawling handwritten note shared in the new court filing, Mangione apologizes to the federal agents hunting for him

In another scrawling handwritten note shared in the new court filing, Mangione apologizes to the federal agents hunting for him

In another scrawling handwritten note shared in the new court filing, Mangione apologizes ‘to the feds’ who spent days hunting for him.

The 27-year-old writes that ‘I do respect what you do for our country’, insists that he acted alone and warning them that his tech is ‘pretty locked down.’

‘I do apologize for any strife or trauma, but it had to be done,’ he adds, according to the documents.

He also appears to point investigators to the notebook saying the ‘straggling notes and TO DO lists… illuminate the gist of it.’ 

Despite his alleged confession, the 27-year-old has pleaded not guilty to both state and federal charges in connection with the December murder.

Federal prosecutors plan to seek the death penalty if he is convicted.  

The 82-page document reveals new details about the hours leading up to the shooting, revealing that Mangione may have allegedly stalked Thompson the night before.

Mangione is accused of shooting UnitedHealthcare CEO Brian Thompson dead at point-blank range on December 4

Mangione is accused of shooting UnitedHealthcare CEO Brian Thompson dead at point-blank range on December 4

Surveillance footage captures a masked killer shoot the healthcare exec dead in Manhattan

Surveillance footage captures a masked killer shoot the healthcare exec dead in Manhattan 

At around 7:47 p.m. on December 3, prosecutors allege Mangione was seen walking on West 54th Street and Sixth Avenue, adjacent to the Hilton Hotel. 

He appeared to be talking on a cellphone.

While he walked along, Thompson was seen walking past him in the opposite direction, the documents reveal. 

This may well have been a close call for the healthcare CEO.

Luigi Mangione is perp-walked by a string of law enforcement agents following his arrest

Luigi Mangione is perp-walked by a string of law enforcement agents following his arrest  

The next morning – December 4 – Thompson was gunned down outside the Hilton Hotel in Midtown Manhattan on his way to UnitedHealthcare’s annual conference. 

Haunting surveillance footage captured a masked man walking up behind the 50-year-old father-of-two and shooting him dead at point blank range. 

The suspect then fled on foot. 

Mangione was finally arrested five days later and charged with the murder. 

The shooting prompted a reckoning around America’s healthcare system and fueled a string of copycat threats against other top executives.

Since his arrest, Mangione has developed something of a cult following – with supporters flocking to his court appearances in downtown Manhattan and a legal fund topping $1 million.  

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