Where To Stream History's Greatest Mysteries Season 6 Episode 3
The Valentine's Day Massacre
- Aired February 10, 2025
- 60 Min
- Rated 7.0
- Number 82 Of 103 Rated Episodes
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?