The apartment building at one time, was the home of Gacy's mother, and Gacy had done some construction work there. The information regarding the location was recently released from Bill Dorsch, a private investigator and retired Chicago police detective, who said he had seen Gacy carrying a shovel near the area at about 3 a.m. one day in 1975.

Dorsch said Gacy and he were acquaintances at the time and that when he asked Gacy what he was doing there so late with a shovel, Gacy smiled and said he was doing some unfinished digging related to his work. The former officer reportedly thought little of the Gacy sighting until three years later, when Gacy was charged with 33 murders.

The yard of the apartment building
where the mother of convicted serial killer
John Wayne Gacy once lived.

A tent is seen in the yard of an apartment building in Chicago
where police searched November 1998, for more possible victims of
serial killer John Wayne Gacy.

Grid patterns are drawn on the lawn where
Chicago police will begin excavating for more
possible victims of serial killer John Wayne Gacy.

Technicians use radar to scan beneath the parking lot.

Chicago police use a ground penetrating radar device to locate victims buried under the
parking lot of the apartment building where serial killer John Wayne Gacy's mother lived.