The frontier towns of Idaho were populated by some of the toughest and most dangerous characters in the West. Serial killer Lyda Lewis poisoned her unsuspecting husbands to cash in on their life insurance. The Eddy and Splawn families created counterfeit U.S. gold pieces. And "Diamondfield" Jack Davis, a notorious killer, even shot a child's dog. From Butch Cassidy to George Levy, Harry Orchard to Caleb Lyon, read about the most notorious desperados...