Who Is Luigi Mangione, Arrested In Connection With the UnitedHealthcare C.E.O.’s Killing?

• Dec. 9, 2024Updated 5:12 p.m. ET

Luigi Mangione, 26, the man who was taken into custody Monday morning as a person of interest in connection with the killing of UnitedHealthcare chief executive Brian Thompson in Midtown Manhattan last Wednesday, appears to have been a well-educated and well-traveled enthusiast of computer programming and gaming.

Mr. Mangione grew up in Maryland, according to Joseph Kenny, chief of detectives with the New York City Police Department.

He attended high school at the Gilman School in Baltimore, where he was an athlete and the valedictorian of his graduating class in 2016. In a graduation speech, he described his class as “coming up with new ideas and challenging the world around it.”

He thanked parents in attendance for sending him and his classmates to the school, which he described as “far from a small financial investment.” Tuition at Gilman is currently $37,690 per year for high schoolers.

Mr. Mangione then attended the University of Pennsylvania, where he displayed a keen interest in developing computer games. He was a member of the Phi Kappa Psi fraternity and graduated with both a bachelor’s degree and a master’s degree in engineering.

Stanford University confirmed that a Luigi Mangione worked as a head counselor in its Pre-Collegiate Studies program in 2019.

Mr. Mangione’s family has prospered from its real estate holdings and a chain of senior rehabilitation centers.

Chief Kenny said Mr. Mangione had lived in San Francisco and Honolulu and had no known criminal record in New York City. In fact, the only criminal activity that seems linked to Mr. Mangione is a citation for trespassing in Hawaii.

Mike Baker, Maria Cramer, Heather Knight and Andy Newman contributed reporting.