WASHINGTON — The brazen killing of UnitedHealthcare’s CEO was likely carried out with a ghost gun, one of the nearly untraceable weapons that can be made a home, police said Monday. A ghost gun is a ...

As investigators build their case against suspect Luigi Mangione for the alleged killing of UnitedHealthcare CEO Brian Thompson, police say the gun found in his backpack appeared to be a ghost gun ...

Add Yahoo as a preferred source to see more of our stories on Google. Accused murderer Luigi Mangione allegedly used a 3D printed gun in the fatal shooting of UniitedHealthcare CEO Brian Thompson.