Question: My Friend Dahmer is a film about an American serial killer and sex offender who committed the rape, murder, and dismemberment of seventeen men and boys, and was known as what?
Sentence (from "My Friend Dahmer (film)"): It is based on the 2012 graphic novel of the same name by cartoonist John "Derf" Backderf, who had been friends with Dahmer in high school in the 1970s, soon before Dahmer began his killing spree.
Relevant evidence: No