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

Luigi Mangione, 26, was shackled and seated in a Manhattan court when he leaned over to a microphone to enter his plea. The ...

Luigi Mangione pleaded not guilty to New York State charges in the killing of UnitedHealthcare CEO Brian Thompson on Monday.

Accused CEO assassin Luigi Mangione pleaded not guilty at his arraignment for first-degree murder. His supporters braved sub-freezing temperatures outside the court in Manhattan. Mangione's attorney ...

While inside a New York City courtroom, Luigi Mangione pleaded not guilty to state murder and terrorist charges Monday.

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

Several online defense funds have been created for Mangione by anonymous people, including one on the crowdfunding website GiveSendGo that as of Monday morning had raised over $187,000.

A triptych of criminal charges paints a searing, sometimes disparate portrait of the man accused of ambushing and killing ...

Mangione’s defense attorney is making headlines. Learn more about Karen Friedman Agnifilo and her law background.

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

Luigi Mangione pleaded not guilty Monday to New York state murder and terrorism charges. Mangione, a 26-year-old Baltimore ...

The attorney for Luigi Mangione, who has been accused of killing UnitedHealthcare CEO Brian Thompson, slammed New York City ...