Season
Season 6 Episode
- Season 6 Roswell
- Season 6 The Franklin Expedition
- Season 6 The Valentine's Day Massacre
- Season 6 What is the Yeti?
- Season 6 The Final Flight of Amelia Earhart
- Season 6 The Death and Fortune of Pablo Escobar
- Season 6 The Lost Loot of Jesse James
- Season 6 The Rendlesham Forest Incident
- Season 6 The Amazing Events of the Book of Exodus
- Season 6 The Search for Atlantis
- Season 6 The Death of Dillinger
- Season 6 The Missing Riches of Genghis Khan
- Season 6 The Missing Tesla Papers
- Season 6 Secrets of the Copper Scroll
- Season 6 The Killing of Bugsy Siegel
- Season 6 Percy Fawcett and the Lost City of Z
- Season 6 Secret of the Sphinx
- Season 6 The Lost Pirate Treasure of Jean Lafitte
- Season 6 The Secrets of Easter Island
- Season 6 Lost Places of the Old Testament
History's Greatest Mysteries - Season 6 Episode 3 The Valentine's Day Massacre
7.70 48 minutes 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?
