NEW YORK (AP) — A Pennsylvania police officer testified Tuesday about confronting Luigi Mangione during an intense manhunt last year for UnitedHealthcare CEO Brian Thompson's killer.

As soon as Mangione doffed his medical mask at a McDonald’s in Altoona, Pennsylvania, Officer Joseph Detwiler said, “I knew" he was the suspect whose face had been all over the news since the shooting five days earlier on a Manhattan sidewalk.

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