UnitedHealthcare CEO Brian Thompson assassination suspect Luigi Mangione was likely "overcharged" when Manhattan DA Alvin Bragg alleged terrorism, experts say.

HOLLIDAYSBURG, Pa. (AP) — The suspect in the killing of UnitedHealthcare’s CEO is returning to New York to face murder charges after agreeing to be extradited Thursday during a court appearance in Pennsylvania where he was arrested last week after five days on the run.

Luigi Mangione, the accused killer of UnitedHealthcare CEO Brian Thompson, is expected to appear on state murder and terrorism charges in Manhattan on Monday — after being separately charged with federal death penalty-eligible offenses following his climactic return to City.

The Metropolitan Detention Center in Brooklyn, New York is known for having ‘dangerous’ and ‘barbaric’ conditions

Brian Thompson. He was not required to enter a plea. Here’s what’s next in the case: Mangione is being held without bail at Metropolitan Detention Center, the same federal jail where hip-hop mogul Sean “Diddy” Combs and cryptocurrency fraudster Sam Bankman-Fried are currently detained.

Luigi Mangione, now held in a New York City lock-up, could face the death penalty if convicted of the shooting death of UnitedHealthcare CEO Brian Thompson. The killing is sparking new concerns about violent extremism bubbling across the country.