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 ) . All of Gacy 's known murders were committed inside his Norwood Park ranch house . Convicted of 33 murders , Gacy was sentenced to death on March 13 , 1980 for 12 of those killings .
Hypothesis: John Wayne Gacy is a murderer.
Label: ENTAILMENT