Luigi Mangione has pleaded not guilty in the December 4th shooting death of United Healthcare CEO Brian Thompson. Mangione voiced that not guilty plea to a judge Monday inside a New York City courtroom.

A grinning Luigi Mangione appeared to yuk it up in a Manhattan courtroom Monday as he entered a plea in the murder of UnitedHealthcare CEO Brian Thompson.

Luigi Mangione has officially pleaded not guilty after being charged with the murder of UnitedHealthcare CEO Brian Thompson. The 26-year-old entered not guilty pleas on Monday morning, December 23, in New York State court for 11 state counts — including first-degree murder,

Mangione, 26, is expected to be turned over to the NYPD by federal agents in the morning and brought into state court for his arraignment on murder charges.

After Luigi Mangione's arrest for allegedly killing UnitedHealthcare CEO Brian Thompson, things have been quite interesting on social media.

Luigi Mangione is being detained in Pennsylvania after being found with a gun consistent with the one used by kill UnitedHealthcare CEO Brian Thompson.

Luigi Mangione pleaded not guilty Monday to state charges in the murder of UnitedHealthcare CEO Brian Thompson.

Luigi Mangoine, who is accused of fatally shooting UnitedHealthcare CEO Brian Thompson, has pleaded not guilty. However, what online speculators noticed was the matching outfits of Mangione and his attorney as both of them appeared in court in clothes that seemed like a planned ‘twinning’.