A man arrested in connection with the fatal shooting of UnitedHealthcare chief executive Brian Thompson has been named as Luigi Mangione.

The 26-year-old was arrested on a firearms charge by police in Altoona, Pennsylvania, on Monday morning, following the shooting of Mr Thompson by a masked gunman in Manhattan last Wednesday.

He has not been charged with the killing of Mr Thompson, officials said on Monday.

Detectives from the New York City Police Department (NYPD) have travelled to Pennsylvania to question Mangione.

Here’s what we know about him so far…

Arrest

According to officials from the NYPD, Mangione was arrested in Altoona on Monday after a tip-off from a McDonald’s employee who recognised him from the police appeals.

Altoona is around 230 miles to the west of New York and in the state of Pennsylvania.

According to police, he had a silencer and a gun “both consistent with the weapon used in the murder”.

They said the gun appeared to be a “ghost gun” – a type of weapon that can be assembled at home from parts and without a serial number – and that it was possibly made using a 3D printer.

Mangione also had a fake New Jersey ID – with the name Mark Rosario – matching a document used by the suspect to check into a hostel in the city before the attack, NYPD Commissioner Jessica Tisch told a press conference on Monday.

He was found carrying a “handwritten document” which Ms Tisch said spoke “to both his motivation and mindset”.

NYPD chief of detectives Joseph Kenny said that from the document, it appeared the suspect had “some ill-will towards corporate America”.

Background

According to police, Mangione was born and raised in the state of Maryland and has links to San Francisco in California and Hawaii’s capital Honolulu.

His social media lists him as being from Towson, a well-to-do area to the north of the city of Baltimore. He is said to have attended Gilman school – a private all-boys school in the city.

Fees cost up to $37,000 (£29,000) depending on the age of the student and the school boasts an impressive list of alumni, including businessmen, NFL stars and former state senators.

After graduating in 2016, it appears Mangione went on to attend the University of Pennsylvania.

According to his social media, he studied computer science and during his time there launched a gaming research group named UPGRADE (UPenn Game Research and Development Environment).

He later co-founded his own computer game company, which focused on small, simplistic games.

According to his LinkedIn page, Mangione moved to California in 2020, where he worked for a digital retailing website for new and used cars.

Magione lists himself as from Honolulu on his LinkedIn page, while pictures shared on his public Instagram page show him on the island of Hawaii.

What about his social media presence?

Mangione appears to have an active social media presence.

One account, appearing under his name and picture on the X platform, regularly shares and reposts think pieces, with frequent topics such as artificial intelligence (AI), philosophy, and the future of humanity in a world of ever-more powerful technology.

The account praised the book What’s Our Problem? by the popular American author Tim Urban – who often addresses such topics – in January 2024 saying he “believed it would go down in history as the most important philosophical text of the early 21st century”.

While the account does address political issues, it seemingly does not express views on the American healthcare and insurance system.

In another account matching his name and photograph on the user-generated book review site Goodreads, he appeared to give a four-star review to a text called Industrial Society and Its Future by Theodore Kaczynski.

Read more:
Trump gushes over ‘handsome’ William
Record $765m for sports star
Shooting prompts US healthcare debate

The piece, which rallied against technological advancement, became known as the Unabomber Manifesto after its author began a nearly 20-year mail bombing campaign which he said was designed to protect nature.

Three people were killed and dozens others injured in the bombing campaign, which ended with his arrest in 1996.

In the review, the account seemingly run by Mangione wrote: “When all other forms of communication fail, violence is necessary to survive. You may not like his methods, but to see things from his perspective, it’s not terrorism, it’s war and revolution.

“‘Violence never solved anything’ is a statement uttered by cowards and predators.”

Brian Thompson shooting

Brian Thompson, 50, was the chief executive of UnitedHealthcare – the fourth-largest public company in the United States.

He was targeted by what experts claim was a “seasoned, professional killer”, who shot him on 4 December as he was walking into a Manhattan hotel where his company was holding a conference.

Investigators said last week the words “defend”, “deny”, and “depose” were written on the cases of bullets found at the scene, which are similar to the title of a book that criticises health insurance companies.

The shooting happened at 6.45am on Wednesday 4 December – just before sunrise.

Mr Thompson was in New York City for UnitedHealthcare’s annual investors conference, which was due to start at 8am.

As he walked towards the entrance of the Hilton hotel on Sixth Avenue, in Manhattan’s midtown, a gunman appeared from two parked cars behind him.

The suspect drew his weapon and fired at least three times at close range – around 15ft (4.6m) away from him on the pavement.

Mr Thompson was shot in the back and the calf and died from his injuries.

UnitedHealthcare is the largest provider of Medicare Advantage plans in the US and manages insurance for employers and state and federally funded programmes.

It is the fourth largest public company in the country – behind Walmart, Amazon, and Apple.