The suspect in the killing of UnitedHealth executive Brian Thompson is in custody

A "strong person of interest" was arrested in Pennsylvania on Monday, after finding he had a fake ID with the same name as the one used by the suspected killer of UnitedHealthcare CEO Brian Thompson, officials said.

New York City Mayor Eric Adams said at a press conference Monday that “He matches the description of the identification we've been looking for” and that he is “in possession of several items that we believe will connect him to this incident.”

"The suspect was in a McDonald's and was recognized by an employee who then called local police," stated NYPD Commissioner Jessica Tisch.

"Responding officers questioned the suspect, who was acting suspiciously and was carrying multiple fraudulent IDs, as well as a U.S. passport. Upon further investigation, officers recovered a firearm on his person as well as a suppressor, both consistent with the weapon used in the murder," she added.

"They also recovered clothing, including a mask consistent with those worn by our wanted individual. Also recovered was a fraudulent new Jersey ID matching the ID our suspect used to check into his New York City hostel before the shooting incident," Tisch said. "Additionally, officers recovered a handwritten document that speaks to both his motivation and mindset."

Detectives from the NYPD will now go to Pennsylvania to conduct more interviews with Mangione.

Mangione has never been arrested in New York, according to NYPD Chief of Detectives Joseph Kenny.

He was reared in Maryland, according to Kenny, and has connections to San Francisco, California. His last known residence was in Honolulu, Hawaii.

"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, some ill will toward corporate America," Kenny said in reference to the manifesto that was purportedly discovered on Mangione in Altoona.

"He's going to be facing gun charges there. And at some point, we'll work out through extradition to bring him back to New York to face charges here, working with the Manhattan District Attorney's Office," Kenny continued.

Kenny also stated that Mangione "was in possession of a ghost gun that had the capability of firing a nine millimeter round and a suppressor."

About 280 miles from Altoona, Thompson was shot dead by a masked attacker who entered from behind in front of the New York Hilton Midtown.

According to officials, the murderer fled into Central Park on foot and then on a bike after opening fire at around 6:45 a.m., as seen by CCTV film. Police claimed the last video showed the suspected shooter at an Upper Manhattan bus depot.

Authorities are investigating if the individual being questioned in Altoona traveled 240 miles from Philadelphia by bus, according to law enforcement sources.