A defense bid to gut the federal case against Luigi Mangione turns on what was inside a backpack, and how police opened it.

In a filing dated Friday, Oct. 10, the 27-year-old Maryland native’s defense attorney, Karen Friedman Agnifilo, moved to suppress “the evidence the government recovered through a warrantless search of Mr. Mangione’s backpack.”

She also sought to suppress statements she says were obtained “through custodial interrogation without Miranda warnings" during Mangione's arrest on Dec. 9, 2024, at a McDonald's restaurant in Altoona, Pennsylvania.

Mangione has been accused of murdering UnitedHealthcare CEO Brian Thompson five days earlier in New York City.

The same motion asks the court to dismiss two firearm counts tied to a “crime of violence” theory, arguing the statute

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