Gun Used By United Healthcare Assassin May Have Been Rare WWII Spy Weapon: Report

The gunman who killed Brian Thompson

The gun used to kill UnitedHealthcare CEO Brian Thompson may have been a modern version of a rare World War II-era spy weapon, investigators revealed.

Authorities believe the shooter used a B&T VP9, a modernized version of the Welrod pistol, a firearm designed during the Second World War for covert missions, according to the New York Post.