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Luigi Mangione has pleaded not guilty to state and federal murder charges in the Dec. 4, 2024, killing of UnitedHealthcare CEO Brian Thompson

Mangione's attorneys have argued that the police violated his constitutional rights as they seek to have some evidence suppressed

These pretrial hearings are expected to last several days and impact what evidence jurors can hear

Luigi Mangione was back in court on Thursday, Dec. 4, 2025 — a year to the day prosecutors say he gunned down UnitedHealthcare CEO Brian Thompson in midtown Manhattan.

Mangione, 27, has pleaded not guilty to state and federal murder charges. This week marked Mangione's first time back in state court since the judge overseeing the case, Gregory Carro, dismissed two terrorism charges against him in Sep

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