Authorities identified the person of interest in the killing of UnitedHealthcare CEO Brian Thompson as former Ivy League student Luigi Mangione.
Mangione, 26, of Towson, Md., was taken into custody Monday at a McDonald's in Altoona, Pennsylvania, after a customer recognized him and called 911, law enforcement sources told The New York Times.
He has not been charged in connection with the shooting, but was brought in on separate charges.
Mangione graduated from the University of Pennsylvania with a Masters in Computer Science in 2020, according to a LinkedIn profile of a person with the same name.
He was previously named valedictorian at the Gilman School in Baltimore, Maryland in 2016.
Upon being taken in for questioning, Mangione was reportedly found with a manifesto on his person, criticizing healthcare companies for putting profits over patients, a senior law enforcement official familiar with the investigation told the outlet.
He also had a ghost gun and the same fake ID he used to check into a New York City hostel in November, sources said.
Thompson, 50, was in New York City for the company's annual investors meeting Wednesday when he was ambushed by a masked shooter who fired off several rounds into his back and leg, leaving him mortally wounded.
Preliminary evidence indicated Thompson's murder was a "premeditated, pre-planned, targeted attack," NYPD Commissioner Jessica Tisch, who confirmed the suspect was "lying in wait" for at least five minutes before he approached the victim, told reporters at a press conference last week.
At the crime scene, investigators recovered live 9mm rounds and three discharged casings engraved with words "deny," "depose," and "defend," as reported by the New York Post. The words appear to allude to the title of Jay Feinman's book "Delay, Deny, Defend," which criticizes the practices of insurance companies.
