Bill Long went to his grave without ever revealing who and what he was. His life is at the very center of the Wild West, the heart of the outlaws that captured the imagination of the world. He never wrote a memoir or tried to justify his life. He was pursued by lawmen like Charlie Siringo, Allen Pinkerton, Frank Canton, and Tom Horn. He was never discovered and never captured. Who was Bill Long? Was he Butch Cassidy? Was the Sundance Kid? Was he was his own man, and kept that secret his entire life.
