Question: Henry: Portrait of a Serial Killer is a 1986 American psychological horror crime film, the characters of Henry and Otis are loosely based on real life serial killers Henry Lee Lucas and which American drifter and serial killer who was convicted of six counts of murder?
Sentence (from "Ottis Toole"): Lucas had backed Toole's confession to the Walsh murder, claiming he had been in possession of the victim's severed head.
Relevant evidence: No