UnitedHealthcare CEO Brian Thompson died in a dawn ambush Wednesday. The shooter remains at large and a manhunt continues.

A gunman killed UnitedHealthcare’s CEO on Wednesday in a “brazen, targeted attack” outside a Manhattan hotel where the health insurer was holding its investor conference, police said, setting off a ...

A former University of Pennsylvania student has pleaded not guilty to all federal charges in Thompson’s case. Learn all about Luigi Mangione here.