Terry Sullivan served as a prosecutor for the State's Attorney in spearheading the investigation and arrest of John Wayne Gacy, Jr., and was one of the key prosecutors at Gacy's trial. He is the president of the Sullivan Firm, a law firm with offices in Rolling Meadow and Chicago, Illinois.
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He was a model citizen. A hospital volunteer. And one of the most sadistic serial killers of all time. But few people could see the cruel monster beneath the colorful clown makeup that John Gacy wore to entertain children in his Chicago suburb. Few could ... SEE MORE