Authorities arrested a person of interest in the murder of UnitedHealthcare CEO Brian Thompson in Pennsylvania on Monday, identifying the individual as Luigi Mangione.
Mangione, 26, was [spotted at a McDonald’s in Altoona, Pa](https://www.startribune.com/brian-thompson-unitedhealthcare-ceo-killing-minnesota-what-we-know/601191764)., New York City Police Commissioner Jessica Tisch said during a news conference. Officers questioned Mangione and found he was carrying several fake IDs and a U.S. passport, a gun and a firearm suppressor similar to the one used in the murder, she said.
Mangione was “sitting and eating” in the McDonald’s on Monday morning when he was identified by an employee, said Joseph Kenny, chief of detectives with the New York Police Department.
Police found a three-page handwritten document that allegedly spoke to the suspect’s motivation in the killing and his mindset. The document criticized health care companies for putting profits above care, according to the New York Times. Kenny said the manifesto did not target other individuals, but it did convey a dislike for corporate society.
“It does seem he has some ill will toward corporate America,” he said.
The recovered firearm was a 9mm “ghost gun,” which may have been made with a 3D printer, Kenny said.
Mangione’s last known address was Honolulu, Hawaii, according to Kenny. But he was born and raised in Maryland and also has ties to San Francisco.
Mangione was [high school valedictorian](https://baltimorefishbowl.com/stories/baltimore-valedictorians/) at the all-boys Gilman School in Baltimore. High school tuition at Gilman is $37,690, according to the school’s admissions page.