Caliph Washington didn't pull the trigger but, as Officer James "Cowboy" Clark lay dying, he had no choice but to turn on his heel and run. The year was 1957; Cowboy Clark was white, Caliph Washington was black, and this was the Jim Crow South. As He Calls Me by Lightning painstakingly chronicles, Washington, then a seventeen-year-old simply returning home after a double date, was swiftly arrested, put on trial, and sentenced to death by...