In the spring and summer of 1997, four young women vanish in quick succession. Two of them go missing just off Texas Interstate 45, and the other two disappear just a few hours north. Could a serial killer be roaming the highways between Texas and Oklahoma? ABC News correspondent John Quiñones takes viewers inside the decades-long cold case investigation and four families’ quest for answers. The report features exclusive footage of a hypnosis session with a fifth survivor that helped lead police to the killer and behind-the-scenes details into the killer’s confession.

The two-hour episode includes powerful new interviews with the family members of the victims, including Gay Smither, Laura Smither’s mother; Jan Bynum, Kelli Cox’s mother; Alexis Bynum, Kelli Cox’s daughter; Kathy Dobry, Tiffany Johnston’s mother; and C.H. and Suzy Cain, Jessica Cain’s parents. It also features interviews with members of law enforcement who helped solve the cases after two decades. “20/20” airs on Friday, March 15 (9:01-11:00 p.m. EDT), on ABC, next day on Hulu.

ABC News’ “20/20” is the No. 1 award-winning primetime program anchored by David Muir and Deborah Roberts. A proven leader as a long-form newsmagazine for over 45 years, “20/20” features unforgettable, character-driven true-crime mysteries, exclusive newsmaker interviews, hard-hitting investigative reports and in-depth coverage of high-profile stories. Janice Johnston is the executive producer. The two-hour “20/20” events air Fridays from 9:01-11:00 p.m. EDT on ABC and are available to stream on ABC News digital platforms and Hulu.

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