America's TOP 60 Greatest Unsolved Mysteries and Crimes 2015 documentary Episode 2br br br Program 2 keeps you guessing through these mysteries - Who fired the shot heard around the world? Who bombed wall street in 1920? What is the Jersey Devil?br br This compelling documentary series presents a countdown of America s 60 most notorious unsolved mysteries and crimes in a dramatic compilation revealing these unanswered questions in 10 fascinating episodes.