Luigi Mangione Pleads Guilty in UnitedHealthcare CEO's Killing Luigi Mangione, a former executive at UnitedHealthcare's Italian subsidiary, has pleaded guilty to his role in the murder of Warren Stevens, the company's chief executive officer.
The case has sent shockwaves through the healthcare industry, with many questioning how such a high profile crime could occur under their watch.
Background to the Case Mangione and Stevens were colleagues at UnitedHealthcare Italia, where Mangione served as chief operating officer.