S7 Ep3: St Valentine's Day Massacre
Video duration: 17:53
History Detectives stares down the barrel of a shotgun for clues that one of Al Capone's men fired it in a Chicago gang massacre that shocked the nation. The gun came to our contributor's family after it was handed down through two generations of prominent Chicago families. History Detectives combs through physical evidence to see if the gun can be placed at the scene of the crime.