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? 
James Tillis: James Tillis (born July 5, 1957) is a former professional boxer. James Tillis:  He holds notable wins over Ron Stander by TKO 7 in 1980, and the hard punching Earnie Shavers by ten-round decision in 1982. Ron Stander:  An award-winning documentary entitled "The Bluffs Butcher," after his adopted hometown of Council Bluffs, IA, produced by journalism student Andrew Batt was released in 2004.
i don't know