A Cook County Sheriff's spokesman says the office has been given approval by prosecutors to search the apartment complex where serial killer John Wayne Gacy's mother once lived to determine if he buried any bodies there.
Frank Bilecki, a spokesman for Sheriff Tom Dart, says that Cook County State's Attorney Anita Alvarez's office approved the request for a search warrant late Friday afternoon.
Bilecki says investigators will use special equipment to search for indentations in the ground that might indicate something has been buried at the apartment complex on Chicago's Northwest Side where Gacy's late mother once lived. Highly trained dogs will then be brought in to sniff for human remains.
Gacy was convicted of murdering 33 young men who died in the 1970s. He was executed in 1994.