History's Greatest Mysteries

The Killing of Bugsy Siegel (6x15)

Air date: Jul 14, 2025

It's one of the most infamous and unsolved mob murders--notorious mobster Bugsy Siegel is gunned down in his Beverly Hills living room. Although Siegel's killing becomes front page news, no arrest is ever made. Bugsy Siegel made a lot of enemies across the country, but who killed him, and why?