CHICAGO (CBS) — A crime scene investigator who worked the Gacy home site almost 33 years ago is wondering how much success the sheriff’s office will have even now in identifying the remains.

The crawl space under Gacy’s home was the focus of Alan Kulovitz’s work in December 1978 through part of January 1979.

He says Gacy gave them the impression as many as 21 bodies were beneath the house – and a map was drawn.

“At that time, he showed about 20 or 21 (bodies), as to the placement of these different bodies,” Kulovitz said. “And nobody really believed it at first.”

They didn’t believe it because investigators didn’t think there could be that many. As it turned out, they found the remains of 33 men and boys, eight still unidentified.

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Cook County Sheriff Tom Dart hopes relatives will now come forward–now that DNA technology can be used to ID the victims.

“I hate to say it, but I think in some cases they may have a problem,” Kulovitz said.

Kulovitz says he knows that in other cases, when authorities identified victims who were runaways or prostitutes and contacted their families, in some cases the families didn’t care.

“[They’d say,] ‘Yeah, well, we just kicked him out of the house. He was no good, rotten…’ And they didn’t even want to claim the body,” he said

Kulovitz says he’s not talking specifically about the Gacy case but about other homicides in Cook County where the victims were male prostitutes or runaways living on the streets.

With the Gacy case, Kulovitz says he hopes that enough time has gone by now – and families will acknowledge the truth of a life lived – and a life lost.

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