Book excerpt: On the afternoon of August 2, 1876, in the Number Ten Saloon of Deadwood, Dakota Territory, Wild Bill Hickok was shot in the back and killed while playing cards. A man named Jack McCall was charged with the murder, but found innocent. In 1877, however, McCall was re-arrested for the murder, re-tried, and executed by hanging. Through the author's inside knowledge and meticulous research, questions about Hickok's death can now be answered, including what involvement the Dead Rabbits, an Irish gang from New York, had in the murder of Wild Bill.