Mangione is accused of gunning down Thompson as he walked to an investor conference in Midtown Manhattan on Dec. 4.

Mangione faces three state murder charges, including murder as an ‘act of terrorism’, and separate federal charges.

Luigi Mangione is due in a New York courtroom to face state charges in the murder of UnitedHealthcare CEO Brian Thompson.

Luigi Mangione, the man accused of fatally gunning down health insurance executive Brian Thompson on a Manhattan street, ...

The federal charges could carry the possibility of the death penalty, while the maximum sentence for the state charges is ...

Luigi Mangione, the suspect in the killing of UnitedHealthcare CEO Brian Thompson, pleaded not guilty to state murder and ...

Luigi Mangione, the suspect in the fatal shooting of UnitedHealthcare CEO Brian Thompson on a busy sidewalk in Midtown ...

Before his initial appearance in New York’s state’s trial court, federal prosecutors also charged Mangione in the killing of ...

The Ivy League-educated suspect is accused of gunning down UnitedHealthcare CEO Brian  Thompson on a Midtown Manhattan sidewalk.

Luigi Mangione, the man accused of fatally shooting UnitedHealthcare CEO Brian Thompson earlier this month in NYC, pleaded not guilty on Monday to murder and terror charges in a state case that will ...