Pinterest Facebook Twitter Email The Pretty Boy Floyd Mystery 02:22 The primary suspect in the Kansas City Massacre is gunned down by the FBI. From: Don Wildman, Mysteries at the Museum and Trunk of Horrors, Russian Roswell, Baby Incubators Similar Topics: History Travel's Best Related Videos The Bombing of the Thinker 02:44 The Coney Island Sideshow 02:21 Cannibalism in the Arctic 03:54 The Invention of Chewing Gum 03:02 The Captains' Return 03:23 The Find of the Century 02:46 Building the Spruce Goose 01:21 The Midnight Express' Savior 03:16 More Videos First Nuclear Test in History 02:29 Deadly Legionnaires' Disease 03:45 A Life-Saving Vaccine 02:47 Part of Earhart's Plane Found? 04:05 Crash at Area 51 01:59 A Deadly Maritime Tragedy 02:44 Counterfeit Currency 03:41 Small Coupon, Huge Fraud 04:20 See Shrunken Human Heads 04:00 Did a Cow Cause Chicago Fire? 02:51 Byrd's Perilous Arctic Flight 02:54 Black Market Spirits 03:06 Captured U-Boat Helps Win WWII 02:37 Was Marilyn Monroe Murdered? 02:16 Salton Sea Disaster 02:48 Inside Capone's Haunted Cell 02:37 We Recommend 50 States, 50 Landmarks 50 Photos Top Natural Healing Spots 13 Photos Wild Alaska 12 Photos 10 of the World's Most Breathtaking Road Trips 10 Photos 10 Trending International Travel Destinations 10 Photos 7 New Wonders of the World 14 Photos