The person of interest in the healthcare CEO shooting wrote that “these parasites had it coming.”

Luigi Mangione’s handwritten manifesto was heavily critical of the healthcare industry and warned that violence was the only answer to changing it.

“These parasites had it coming,” he wrote in the document, a police official who has seen the document told [news source].

“I do apologize for any strife and trauma, but it had to be done,” it continued.

The manifesto also stated that Mangione was acting alone and had funded himself.

Social media has erupted with posts glorifying the December 3 killing of UnitedHealth CEO Brian Thompson, some calling for more violence. The National Cyber Research Institute (NCRI) reports that six of the top 10 most engaged posts on Twitter/X either supported the killing or denigrated Thompson. One post with over 1.8 million impressions asked, “Are we starting now then?” referencing a possible larger movement.

Similar posts across platforms like Bluesky, TikTok, and Telegram have emerged, with some suggesting other corporate figures “should fear for their own lives.” Others endorse further violence, targeting high-profile figures like Trump and Elon Musk. Telegram groups have also circulated names of other healthcare executives, calling for more targeted attacks.

NCRI warns that these patterns once limited to fringe sites like 4chan, are now gaining traction on mainstream platforms, amplifying the risk of escalation. Experts say this could signal the start of a dangerous feedback loop, where violence is normalized and encouraged online.

“We’ve identified highly engaged posts circulating the names of other healthcare CEOs and others celebrating the shooter,” Alex Goldenberg, a senior adviser for the institute and a fellow at Rutgers told [news source]. “The framing of this incident as some opening blow in a class war and not a brutal murder is especially alarming.”

–

Luigi Mangione, 26, was arrested in a McDonald’s in Altoona, Pennsylvania, on Monday morning after customers recognized him as the potential gunman, the NYPD said today.

Mangione was also carrying a fake New Jersey ID, that matched the one used in the New York hostel, and a “ghost gun” with a suppressor, which matched the description of the one used in the shooting. Thompson, 50, was fatally shot Wednesday around 6:45 a.m. on the street near the Hilton hotel in Midtown Manhattan. Last week, New York City Police Department (NYPD) investigators released unmasked photos of the “person of interest” taken at an Upper West Side hostel shortly before he traveled to the shooting site in Midtown Manhattan. Authorities also revealed that bullets and shell casings used in the crime were decorated with the words “deny,” “defend” and “depose,” prompting an avalanche of speculation about a motive for the slaying.

The suspect in the UnitedHealthcare CEO shooting called the Unabomber an “extreme political revolutionary,” according to a Goodreads review he left on Ted Kaczynski’s manifesto.

A Goodreads profile that belongs to Mangione showed he had reviewed Kaczynski’s notorious “Industrial Society and Its Future” manifesto in January. Kaczynski, often referred to as the Unabomber, attacked academics, businessmen and random civilians with homemade bombs for nearly 20 years, with the goal of triggering the collapse of the modern social order. Kaczynski justified his actions in the 35,000-word manifesto, which was published jointly by The New York Times and The Washington Post in 1995 amid the threat of continuing violence.

As news spread online Monday that police had arrested a person of interest in the case, thousands of users on platforms like X (formerly Twitter), Instagram, TikTok, and Reddit voiced their backing for Mangione. Some have even hailed him as a hero, while others have called for his release.

Despite the seriousness of the charges, many social media users have taken a strikingly flippant stance on the cold-blooded public execution of an American insurance executive, highlighting a consensus among people of all political stripes that the country’s healthcare industry is deeply broken.

While the investigation into Thompson’s killing is ongoing, his death has ignited a national conversation about the U.S. health care system and public frustration with health insurance companies. It’s been reported that the shell casings found at the scene were inscribed with the words deny, defend and depose, echoing a phrase used by insurance industry critics.

Mangione’s Goodreads profile showed that there were five books related to chronic back pain on his bookshelf.

Found on mainstream news.