When the gun smoke cleared, four men were found dead at the hardware store in a rural East Texas town. But this December 1934 shootout was no anomaly. San Augustine County had seen at least three others in the previous three years, and these murders in broad daylight were only the latest development in the decade-long rule of the criminal McClanahan-Burleson gang. Armed with handguns, Jim Crow regulations, and corrupt special Ranger commissions...