Elmer McCurdy

In 1976 during the filming of an episode of the Six Million Dollar Man, the film crew discovered the mummified corpse of Elmer McCurdy in a funhouse in a Californian amusement park. McCurdy was an Oklahoma outlaw who had died in a shootout in 1911 and his body had been used ever since as a sideshow attraction. His discoverers only realized it was a human body when his arm broke off, revealing bone and muscle.