Search Continues For Missing Chicago Cop's Wife

BOLINGBROOK, IL - NOVEMBER 17: Cassandra Cales, the sister of missing Bolingbrook, Illinois woman Stacy Peterson, hugs her dog on the front lawn of the home Stacy shared with her husband former Bolingbrook police Sgt. Drew Peterson during a vigil November 17, 2007 in Bolingbrook, Illinois. Drew Peterson has been named as a suspect in the disappearance of Stacy, his fourth wife. The death of Peterson's third wife Kathleen Savio, which had been ruled an accident, was recently determined to be a homicide. Marchers walked from the former Savio home to the Peterson home, a few blocks away, where they left posters near the front door and had a moment of silence. (Photo by Scott Olson/Getty Images)