Claim: Jeffrey Dahmer was a criminal.
Evidence: Jeffrey Lionel Dahmer -LRB- May 21 , 1960 -- November 28 , 1994 -RRB- , also known as the Milwaukee Cannibal , was an American serial killer and sex offender , who committed the rape , murder , and dismemberment of seventeen men and boys between 1978 and 1991.
A sex offender -LRB- sexual offender , sex abuser , or sexual abuser -RRB- is a person who has committed a sex crime.