- A 3D-printed ghost gun is believed to have been used in the killing of UnitedHealthcare CEO Brian Thompson, just the latest example of violence from the nearly untraceable weapons at the center of national legal debate.
When accused murderer Luigi Mangione, 26, was questioned and searched after being found at a McDonald’s in Altoona, Pa., the contents of his backpack allegedly included hand-written admissions about the killing of UnitedHealthcare CEO Brian Thompson, along with a gun and silencer.
