CHICAGO – Detectives who have long wondered if John Wayne Gacy killed others besides the 33 young men he was convicted of murdering may soon get to search for bodies underneath an apartment complex where his late mother once lived, a law enforcement official said Saturday.

Frank Bilecki, a spokesman for Cook County Sheriff Tom Dart, confirmed a Chicago Sun-Times report that Cook County State’s Attorney Anita Alvarez agreed to ask a judge for a warrant to search the housing complex on the city’s Northwest Side.

Such requests for search warrants are routinely approved.