Luigi Mangione pleaded not guilty in a New York courtroom Monday to state charges in the murder of UnitedHealthcare CEO Brian Thompson earlier this month outside a Manhattan hotel. Mangione faces 11 state charges,

Luigi Mangione pleaded not guilty to New York state murder charges Monday over the shooting of a top UnitedHealth Group Inc. executive, kicking off a high-profile case that will likely be the first to go to trial.

Luigi Mangione has formally spoken on the accusations against him in the fatal shooting of UnitedHealthcare CEO Brian Thompson. The 26-year-old suspect arrived at his arraignment in New York state court on Dec.