Question:  Robert "Bobby" DeLaughter is a prosecutor, judge, and author notable for prosecuting and securing the conviction of a white supremacist and Klansman who was convicted of assassinating what civil rights leader?   
Sentence (from "Byron De La Beckwith"): Seven years after being convicted of killing Evers, De La Beckwith died in prison in 2001 at the age of 80 while serving a life sentence.
Relevant evidence: No