Luigi Mangionereturned to New York in shackles on Thursday, Dec. 19, to face murder charges in the killing of UnitedHealthcare CEO Brian Thompson that could lead to the death penalty.

The accused killer had waived his right to an extradition hearing in Pennsylvania earlier in the day and was placed in custody of the New York City Police Department, who took him back to Manhattan.

Hefaces first and second degree murder chargesin New York State and is also accused of terrorism for allegedly gunning down Thompson on a Midtown Manhattan street on Dec. 4. He was on the run for five days before being apprehended at a McDonalds in Altoona, Pa.

Luigi Mangione.Pamela Smith/AP

Luigi Mangione, a suspect in the fatal shooting of UnitedHealthcare CEO Brian Thompson, is escorted off of a helicopter by police, Thursday, Dec. 19, 2024, in New York

Pamela Smith/AP

Mangione also faces weapons and forgery charges in New York and Pennsylvania, as well asfederal murder chargesset to be unsealedon Thursday,the New York Times reported. He was arraigned in New York Thursday on a federal indictment, which could carry the death penalty if he is convicted. He is also expected to be charged with federal stalking and firearms offenses.

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Luigi Mangione, suspect in murder of Brian Thompson, arrives in New York City

Mangione pleaded not guilty to the charges in Pennsylvania but not has not yet entered a plea in New York. It was not immediately clear where he would be housed.

The complaint contains new details about a notebook found on Mangione’s person, which prosecutors allege show he was planning the attack at least since August — and perhaps long before that, as the Aug. 15 entry expresses joy at having “procrastinated” on the plot to “learn more” about the company he was targeting, which is not named in the filing.

Mangione allegedly had his sights set on UnitedHealthcare’s Dec. 4 investors' conference as early as Oct. 22, writing of it as “a true windfall” for his alleged plans to “wack” an insurance CEO.

Outside the courthouse, Mangione’s attorney Karen Friedman Agnifilo declined to comment on the charges except to say that “Mr. Mangione appreciates everyone’s support.”

source: people.com