20/20 ‘What the Killer Left Behind’ - premieres Jan. 30th at 9/8c on ABC A young girl and a stunning murder mystery where “every single person in her life was a suspect.” 20/20 “What the Killer Left Behind” premieres Friday Jan. 30th at 9/8c. Stream on Disney+ and Hulu.

Source: ABC News January 26, 2026 18:26 UTC