What we know about Luigi Mangione, person of interest in ...

Person of interest in UnitedHealthcare CEO killing in custody, police say 03:50

Luigi Mangione has been identified as a person of interest in last week's deadly shooting of UnitedHealthcare CEO Brian Thompson, police said Monday. The 26-year-old was arrested on firearms and other charges in Pennsylvania, after being spotted at a McDonald's in Altoona, and New York police detectives were heading to interview him amid a massive manhunt for the shooter.

Here's what we know about Mangione:

Luigi Mangione named person of interest in CEO shooting

New York Police Commissioner Jessica Tisch told reporters during a news conference that Mangione was believed to be a person of interest in the shooting. Officers arrested Mangione Monday morning at the Altoona McDonald's after a McDonald's employee recognized him and called police, Tisch said. The officers questioned Mangione, who was acting suspiciously, Tisch said.

According to court documents, the Altoona officers found Mangione sitting at a table in the back of the McDonald's wearing a blue medical mask and looking at a laptop. When the officers asked him to pull the mask down, they recognized him from photos released to the media.

Mangione was carrying multiple fraudulent IDs and a U.S. passport, Tisch said. One of the IDs matched the fake New Jersey ID that the shooting suspect used to check into a Manhattan hostel before the shooting, the commissioner said.

When the Altoona officers asked Mangione for his ID at the McDonald's, he gave them the New Jersey ID, according to an affidavit submitted with a criminal complaint. When one officer was checking the ID with dispatchers, the other asked Mangione if he had been to New York recently, and Mangione "became quiet and started to shake," according to the affidavit.

Mangione provided his real name after he was told he would be arrested if he lied about his identity, according to the affidavit. When an officer asked Mangione why he lied about his name, he allegedly said, "I clearly shouldn't have."

Officers found a gun and a suppressor on Mangione that were consistent with the weapon used in the Dec. 4 shooting of Thompson, Tisch said. Police said the gun appeared to be a ghost gun. Clothing and a mask consistent with those of the suspect in the case were also recovered, police said.

A handwritten document that "speaks to both his motivation and mindset" was also recovered from Mangione, Tisch said.

"We don't think that there's any specific threats to other people mentioned in that document, but it does seem that he has some ill will toward corporate America," NYPD Chief of Detectives Joseph Kenny told reporters.

Mangione was charged Monday evening with five counts in Pennsylvania: forgery, firearms not to be carried without a license, tampering with records or identification, possessing instruments of crime, and false identification to law enforcement.

His LinkedIn says he worked at TrueCar, has Ivy League degree

According to his LinkedIn account, Mangione worked as a data engineer at the car-buying website TrueCar. But a company spokesperson told CBS News that Mangione hasn't worked there since 2023.

Mangione graduated from the University of Pennsylvania in 2020, a Penn spokesperson confirmed to CBS News. He received a Master of Science in engineering with a major in computer and information science, and a Bachelor of Science in engineering, majoring in computer science with a minor in mathematics, the spokesperson confirmed.

While at Penn, he worked as a teaching assistant and founded a video game development club, according to his LinkedIn account.

At Stanford University in California, Mangione was a head counselor for a pre-collegiate studies program during the summer of 2019, the university said in a statement to CBS News.

He has ties to Honolulu

Mangione's last known address was in Honolulu, Hawaii, Kenny told reporters. According to an Instagram video posted by the Surfbreak coliving community, Mangione lived there in 2023.

He's related to prominent Maryland family

Mangione was born and raised in Maryland, Kenny said. He is related to a prominent Maryland family that owns country clubs, health care facilities and real estate companies, CBS News Baltimore reported. He's also a cousin of Maryland state Delegate Nino Mangione, who represents parts of Baltimore County.

He graduated from the Gilman School in Baltimore

Mangione graduated in 2016 from the Gilman School, an all-boys private school in Baltimore, according to his LinkedIn account. He was valedictorian for achieving the highest cumulative GPA over four years, according to his LinkedIn page. He captained the Gilman robotics team and also received a scholarship prize in 2014.

James Sandberg, a former classmate of Mangione, told CBS Baltimore that, while he wasn't "particularly close" with Mangione, he knew him "somewhat well" and said, "He was a nice kid."    

Sandberg said he was "shocked" after someone shared an article naming Mangione as a person of interest in the shooting.

"Thought it was maybe a different Luigi Mangione," Sandberg said.

People sent him messages on social media before his arrest

In the months leading up to Mangione's arrest, posts tagging his account on the social media platform X indicate his friends may have been trying to contact him.

"Nobody has heard from you in months," one post from October read.

Another post from July read, "I don't know if you are okay or just in a super isolated place and have no service. But I haven't heard from you in months."

He had an account on Goodreads

On the Goodreads website, Mangione's account contained a four-star rating and review of "Industrial Society and Its Future," written by Theodore John Kaczynski, also known as the Unabomber. Two health care-related books are on his read tab from 2022, including "Crooked: Outwitting the Back Pain Industry and Getting on the Road to Recovery" and "Back Mechanic."

The background image on Mangione's X account shows an X-ray of a spine with hardware in it, reflective of previous surgery. It is not known if this is an X-ray of Mangione's spine. Mangione's X account reposted the quote, "It is no measure of health to be well-adjusted to a profoundly sick society," by J. Krishnamurti at least twice, most recently in January 2024.

In: Pennsylvania Shooting New York