Premise: John Wayne Gacy Jr. ( March 17 , 1942 -- May 10 , 1994 ) was an American serial killer and rapist . He sexually assaulted , tortured and murdered at least 33 teenage boys and young men between 1972 and 1978 in Cook County , Illinois ( a part of metropolitan Chicago ) .
Hypothesis: John Wayne Gacy Jr. was a sexual molester.
Label: ENTAILMENT