Cops Discover Killer_s Hostage Tied Up in Basement

The chilling cases where police uncovered captives in basements often began with a desperate call or a victim's escape. Josephina Rivera's call to police in 1987 led them to Gary Heidnik's Philadelphia home. Officers could smell the stench and found a basement where she and three other women had been chained and tortured . More recently, a woman escaped Timothy Haslett's Missouri home wearing a locked metal collar, begging for help, leading police to uncover his hidden torture chamber . Sometimes, a chilling viral video is all police have to go on to identify a victim