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.

Police officers are essential to maintaining public safety, with responsibilities like patrolling designated areas, issuing ...

As for the 8x22mm cartridge, it’s a rimless bottleneck cartridge with a diameter of 0.320 inch, generating a muzzle velocity ...