Warning: Graphic details ahead.

In Peacock's series about Gacy, the killer says that Rossi and Cram were also involved in killings, saying that he couldn't fit in the crawl space beneath his home. He even said that in the case of John Szyk, he saw Rossi chatting with Szyk after he got home one day. Gacy said he had a few drinks then went to bed. When he woke up in the morning, Syzk was dead.

One victim of Gacy's, John Rignall, also claimed that there were other people present at the time of his torture in Gacy's house. He was lured into the killer's car with the promise of a joint. 

Gacy then placed a rag over his mouth, reportedly doused in chloroform. Rignall was then taken to the killer's home, was suspended from the ceiling in chains, placed in torture wood, and beaten and raped.

Rignall stated that there was a third person in the home with "light hair parted in the middle." Rignall wasn't killed, thankfully, and Gacy dropped him off at the spot where they had first met half-clothed. This third individual was never identified, but many suspect it may have been David Cram, who committed suicide in 2001.

Rossi did not cooperate with authorities when it came to their questions about the murders, and he immediately had all of his correspondence carried out between his lawyers and the police. Rossi stated that he was only asked by Gacy to pour lime in the crawl space and had no idea why there was a strange smell coming from underneath the home.

Both Rossi and Cram have denied having any involvement in Gacy's case.

You can watch John Wayne Gacy: Devil in Disguise on Peacock.