His admirers call him a military genius, while his detractors label him a cold-blooded killer. Regardless of the characterization, Nathan Bedford Forrest entered the American Civil War as a virtual unknown, but emerged as a Rebel hero and a Yankee villain. As a young adult, the Tennessean worked his way up the economic ladder, operating a livery business and brick yard, and serving as the town constable and coroner. With fierce determination to improve...