What to know about arrest of suspect in killing of UnitedHealthcare’s CEO

Police arrested a 26-year-old man on Monday in the Manhattan killing of UnitedHealthcare’s CEO after they say a Pennsylvania McDonald’s worker alerted authorities to a customer who resembled the suspected gunman.

The suspect, identified by police as Luigi Nicholas Mangione, had a gun believed to be the one used in Wednesday’s attack on Brian Thompson, as well as writings expressing anger at corporate America, police said.

Here are some of the latest developments in the investigation:

Where was the man captured? Mangione was taken into custody at around 9:15 a.m. after police received a tip that he was eating at a McDonald’s in Altoona, Pennsylvania, about 85 miles east of Pittsburgh, police said.

Mangione was being held in Pennsylvania on gun charges and will eventually be extradited to New York to face charges in connection with Thompson’s death, said NYPD Chief of Detectives Joseph Kenny.

What evidence did police find? In addition to a three-page, handwritten document that suggests he harbored “ill will toward corporate America,” Kenny said Mangione also had a ghost gun, a type of weapon that can be assembled at home and is difficult to trace.

Officers questioned Mangione, who was acting suspiciously and carrying multiple fraudulent IDs, as well as a U.S. passport, New York Police Commissioner Jessica Tisch said at a news conference. Officers also found a sound suppressor, or silencer, “consistent with the weapon used in the murder,” the commissioner said.

He had clothing and a mask similar to those worn by the shooter and a fraudulent New Jersey ID matching one the suspect used to check into a New York City hostel before the shooting, Tisch said.

What do we know about Mangione? Kenny said Mangione was born and raised in Maryland, has ties to San Francisco and that his last known address is in Honolulu.

Mangione, who was valedictorian of his Maryland prep school (Gilman School in Baltimore), earned undergraduate and graduate degrees in computer science in 2020 from the University of Pennsylvania, a university spokesman told The Associated Press on Monday.

He learned to code in high school and helped start a club at Penn for people interested in gaming and game design, according to a 2018 story in Penn Today, a campus publication.

His social media posts also suggest that he belonged to the fraternity Phi Kappa Psi. They also show him taking part in a 2019 program at Stanford University, and in photos with family and friends at the Jersey Shore…