Preview: Serial Confessions

The shocking confessions of Todd Kohlhepp -- a real estate agent-turned-serial killer and the stunning rescue video of a woman he held hostage in a shipping container

News that South Carolina real estate broker Todd Kohlhepp kept a woman chained inside a shipping container shocked even the most hardened investigators. But the investigation into the kidnapping case led to even more revelations about his double life as a serial killer.

"48 Hours" takes viewers behind the headline-making story with just-released court documents, photographs and hours of videotapes that trace the confessed serial killer's journey into darkness in Serial Confessions," airing Saturday, June 26 at 10 p.m. ET/PT on CBS.

Correspondents David Begnaud and Peter Van Sant report on the investigation and have the latest on the trail of death Kohlhepp created and the victims of his killing spree.

"I've never done anything to anybody who didn't have it coming," Kohlhepp tells detectives.

The broadcast also features an interview with Regina Tague, Kohlhepp's mother, who died before her son's case played out but told Begnaud her son was "very misunderstood."