St. Valentine's Day Massacre/Booth Letter/Cemetery Alarm History Detectives : Season 7 Episode 3
TV-14 PBS 1h 00m
Aired: July 6th, 2009 @ 10:00 PM EST on PBS
Items include a shotgun believed to have been used by a member of Al Capone's gang during the St. Valentine's Day Massacre; a threatening letter to President Andrew Jackson believed to have been written by John Wilkes Boothe's father; and an alarm which is thought to have been an alarm against grave robbers in a cemetery.
