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History's Greatest Mysteries
Loading…History's Greatest MysteriesSeason 6 · Episode 3 — The Valentine's Day Massacre
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Season 6 · Episode 3S6 · E3The Valentine's Day Massacre

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Episodes

20 in Season 6

  1. 1Roswell41 min · 2025
  2. 2The Franklin Expedition41 min · 2025
  3. 3The Valentine's Day MassacreNow playing
  4. 4What is the Yeti?41 min · 2025
  5. 5The Final Flight of Amelia Earhart41 min · 2025
  6. 6The Death and Fortune of Pablo Escobar41 min · 2025
  7. 7The Lost Loot of Jesse James41 min · 2025
  8. 8The Rendlesham Forest Incident60 min · 2025
  9. 9The Amazing Events of the Book of Exodus41 min · 2025
  10. 10The Search for Atlantis41 min · 2025
  11. 11The Death of Dillinger41 min · 2025
  12. 12The Missing Riches of Genghis Khan41 min · 2025
  13. 13The Missing Tesla Papers39 min · 2025
  14. 14Secrets of the Copper Scroll63 min · 2025
  15. 15The Killing of Bugsy Siegel63 min · 2025
  16. 16Percy Fawcett and the Lost City of Z63 min · 2025
  17. 17Secret of the Sphinx63 min · 2025
  18. 18The Lost Pirate Treasure of Jean Lafitte40 min · 2025
  19. 19The Secrets of Easter Island2025
  20. 20Lost Places of the Old Testament2025
S6 · E3History's Greatest Mysteries

The Valentine's Day Massacre

7.7Documentary, Mystery202041 min

On February 14th 1929, one of the most shocking murders in mob history goes down in Chicago and becomes known as the Valentine's Day Massacre. The 20s and 30s are full of gangland murders, but the Valentine's Day Massacre is considered the most brutal and the toughest to solve. So who carried out the Valentine's Day Massacre and why?

Up nextWhat is the Yeti?S6 · E4 · 41 min

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