By MICHAEL R. SISAK, Associated Press

NEW YORK (AP) — Moments after Luigi Mangione was put in handcuffs at a Pennsylvania McDonald’s, a police officer searching his backpack found a loaded gun magazine wrapped in a pair of underwear.

The discovery, recounted in court Monday as Mangione fights to exclude evidence from his New York murder case, convinced police in Altoona, Pennsylvania, that he was the man wanted for killing UnitedHealthcare CEO Brian Thompson in Manhattan five days earlier.

“It’s him, dude. It’s him, 100%,” an officer was heard saying on body-worn camera video from Mangione’s Dec. 9, 2024 arrest , punctuating the remark with expletives as the officer combing the bag, Christy Wasser, held up the magazine.

Wasser, a 19-year Altoona police veteran, testified on the fourt

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