A serial killer was behind the cold case murders of two women in Washington County in the '70s, state police say.

A Utah prosecutor said Ted Bundy was responsible for killing 17-year-old Melissa Ann Smith in 1974, a death that had long been listed as a cold case.

Oxygen's new series Death Row Confidential: Secrets of a Serial Killer examines the gripping story of convicted killer Joseph Naso, and how a fellow inmate came to connect him to many more cold cases.

Docuseries "The Well" reopens an investigation into more than 200 unsolved murders potentially linked to the Speed Freak ...