Question: Is the documentary "The Bluffs Butcher" based on James Tillis, the boxer who was known as "Quick" due to his fast hand speed or Ron Stander, who challenged Joe Frazier for the heavyweight championship in 1972? 
Sentence (from "Ron Stander"): He scored a fifth round knockout victory over hard-punching Earnie Shavers in 1970, and a points decision win over contender Thad Spencer in 1971.
Relevant evidence: No