Luigi Mangione pleads guilty in UnitedHealthcare CEO’s killing Luigi Mangione pleaded guilty to killing UnitedHealthcare CEO Brian Thompson in 2024.Share this: Mangione pleads guilty to federal charges in UnitedHealthcare CEO killingDateAugust 14, 2026In relation toAl-JazeeraLuigi Mangione appears in court as lawyers seek to bar evidence at trialDateDecember 1, 2025In relation toAl-JazeeraUS jury in Luigi Mangione murder trial to remain anonymousDateAugust 11, 2026In relation toAl-Jazeera