Police say the suspect had a ghost gun, possibly made with a 3D printer, when he was arrested on Monday. Here's what to know about the increasingly widespread weapons and efforts to regulate them.

The NYPD filed second-degree murder charges against Luigi Mangione, the suspected shooter of UnitedHealthcare CEO Brian Thompson, according to an online court docket.

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 at home, police said Monday. A ghost gun is a firearm ...

The firearm found on the suspect in the murder of the UnitedHealthcare CEO is believed to have been an untraceable ghost gun, according to police.

Police said Luigi Mangione, the man charged in the killing of UnitedHealthcare CEO Brian Thompson, appears to have had a ghost gun, a weapon that can be made using a 3D printer.

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. Ghost guns have ...

WASHINGTON (AP) — 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.

UnitedHealthcare CEO Was Likely Killed With a Ghost Gun That Can Be Made at Home WASHINGTON (AP) — The brazen killing of UnitedHealthcare’s CEO was likely carried out with a ghost gun ...