Luigi Nicholas Mangione (/luˈiːdʒi ˌmændʒiˈoʊni/ ⓘ loo-EE-jee MAN-jee-OH-nee;[1][2] born May 6, 1998) is an American man who was identified as the suspect in the killing of Brian Thompson, the CEO of UnitedHealthcare, which took place on December 4, 2024, in New York City.

[13][14] The support Mangione has generated has been connected to negative views of the health insurance industry and harmful claim denial practices.

[27] Mangione began to work remotely in November 2020[28] as a data engineer for TrueCar, a car retailing website company headquartered in Santa Monica, California.

[30] Brian Thompson, CEO of the American health insurance company UnitedHealthcare, was shot and killed in Midtown Manhattan, New York City, on December 4, 2024.

[39] Anger erupted on social media platforms at Thompson, UnitedHealth,[40] and the health insurance system generally, with many praising the killing.

[46] Upon searching Mangione, police said they found a similar 3D-printed gun and 3D-printed suppressor to the weapons used in the shooting and a fake driver's license from New Jersey with the name "Mark Rosario", the same name used by the alleged shooter to check into a Manhattan hostel.

[49] The police also said that, when they arrested Mangione, they found a 262-word handwritten document partly about the American healthcare system, which was characterized as a manifesto by multiple media outlets.

[52] Mangione was charged in Blair County, Pennsylvania, with carrying a gun without a license, forgery, falsely identifying himself to the authorities, and possessing "instruments of crime" on December 9, 2024.

[53][55][56] As he was led into the courthouse, Mangione shouted to the gathered cameras: "That's completely out of touch and is an insult to the intelligence of the American people and their lived experience.

[8] On January 30, 2025, President Donald Trump signed an executive order which requires the death penalty to be used wherever possible,[10] meaning that federal prosecutors will likely pursue it in Mangione's case.

[76] On November 18, 2024, his mother reported him missing to the San Francisco Police Department, saying the family had not heard from him since July of that year,[77] shortly after a trip to East and Southeast Asia.

[81] The document also listed Michael Moore and Elisabeth Rosenthal as those who had "illuminated the corruption and greed" of the healthcare/health insurance industry, but noted that the "problems simply remained.

His posts were found to express concerns over the implications of pornography, DEI programs, falling fertility rates, wokeism, secularization, and the decline of Christianity, and he promoted traditionalist ideas.

[98] Multiple sources have reported that he followed Democratic Representative Alexandria Ocasio-Cortez as well as Robert F. Kennedy Jr. and others, labeling him as politically uncategorized and "anti-system".

[97][99][100] According to Business Insider, Mangione's since-deleted social media posts supported the idea that "his worldview was influenced by reactionary right-wing thinkers".

Reads like a series of lemmas on the question of 21st century quality of life", and "It's easy to quickly and thoughtless write this off as the manifesto of a lunatic, in order to avoid facing some of the uncomfortable problems it identifies [...] but it's simply impossible to ignore how prescient many of his predictions about modern society turned out."

They're deliberately eclectic in their information diet, invoking esoteric ideas from many different fields, [and are] often systems thinkers, who take pride in attributing social problems not to individual evil but to complex interplays of incentives and institutions".

[110] Mangione's fellow inmates at SCI Huntingdon in Pennsylvania were heard shouting "Free Luigi" from their cells during a live broadcast interview with NewsNation.

[113][114] The support Mangione has generated has been connected to the public's often negative view of the health insurance industry and what many consider to be unfair claim denial practices that inflict harm.

[127][128][129] Some merchandise were reportedly the subject of copyright and DMCA takedown requests from an entity purporting to be UnitedHealth Group Inc.[130] Other social media users linked Mangione's jail commissary account soliciting donations for "snacks, sodas, an iPad, etc.

[132] Mangione has been noted for his perceived physical attractiveness,[133][134] and Kara Alaimo, writing for Time, stated that he has become "somewhat of an online sex symbol".

[138] Stanford Law School professor Robert Weisberg said that "The FBI and NYDA could have transported Mangione discreetly, but they opted for a public show," and some legal experts stated that the perp walk was a "blatant and unnecessary attempt at self-promotion."

Policy director for the Justice Collaboratory at Yale Law School Jorge Camacho said that, "In a case like Mangione's, where the suspect has garnered some sympathy and applause from people frustrated with greedy health-care insurance companies, the tactic can backfire".

[139][140] Some social media users shared memes and compared Mangione's perp walk to the arrest of Jesus, scenes from the Superman movies, and Renaissance paintings.

[141] On December 23 during Mangione's New York court hearing where he pled not guilty to the state charges, his defense attorney Karen Friedman Agnifilo said that Mangione might not receive a fair trial due to publicity from law enforcement presentations of him, blaming Mayor of New York City Eric Adams for the "unnecessary" and "utterly political" perp walk.

[153] ABC News released their documentary titled Manhunt: Luigi Mangione and the CEO Murder - A Special Edition of 20/20 on December 19, 2024.