CHICAGO—John Wayne Gacy was convicted of killing 33 young men and was executed in 1993, but new details in the case may indicate that Gacy did not act alone.
“I felt from the beginning that there may be loose ends. It was such a huge case that mesmerized the city at the time,” said Terry Sullivan, who was on the prosecution team.
The idea of a Gacy accomplice was raised from the beginning by Jeffrey Rignall. He is one of a few people who survived Gacy's attack. He said another man was at Gacy's home the night Gacy raped him.
Attorneys Robert Stephenson and Steve Becker have been trying to help families of victims find answers. They’ve been getting tips from the public and they've uncovered information that, they say, shows someone else may be involved in some of the killings.
"There is significant evidence out there that suggests that not only did John Wayne Gacy not operate alone, he may not have been involved in some of the murders, and the fact that he was largely a copycat murderer," Stephenson said.
For this story, WGN’s Larry Potash focused on two of Gacy's victims: Russel Nelson and Robert Gilroy.
Check out author Sam Amirante's book, "Defending A Monster".