Hang down your head, Tom Dooley. The folk song, made famous by the Kingston Trio, recounts a tragedy in the North Carolina mountains after the Civil War. Laura Foster, a simple country girl, was murdered and her lover Tom Dula was hanged for the crime. The sensational elements in the case attracted national attention: a man and his beautiful, married lover accused of murdering the other-woman; the former governor of North Carolina spearheading the defense; and a noble gesture from the prisoner on the eve of his execution, saving the woman he really loved. With the help of historians, lawyers, and researchers, Sharyn McCrumb visited the actual sites, studied the legal evidence, and uncovered a missing piece of the story that will shock those who think they already know what happened –...