In Chicago in 1929 - this was Prohibition - Al Capone's men, dressed as cops, lined up and shot and killed members of a rival gang. Seven men died that day. A video is projected on a piece of the brick wall from the February 14, 1929, St. Valentine's Day Massacre as part of a display at The Mob Museum in Las Vegas, Nevada. Bullet holes are marked on the wall from where seven mob associates were gunned down in a Chicago garage.
Ethan Miller, Getty Images
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