Season 1
- 1John Wayne Gacy27 May 2017
- 2Jeffrey Dahmer1 Jun 2017
- 3Ed Gein8 Jun 2017
- 4Marc Dutroux15 Jun 2017
- 5Joachim Kroll22 Jun 2017
- 6Fritz Honka29 Jun 2017
- 7Thierry Paulin6 Jul 2017
- 8Volker Eckert13 Jul 2017
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World's Most Evil Killers
With interviews from the detectives who worked the cases and victims who survived their attacks, this series looks at some of the most prolific serial killers the world has ever seen.
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Seasons (10)
Season 2
- 1Edmund Kemper29 Apr 2018
- 2Richard Ramirez6 May 2018
- 3Dorothea Puente13 May 2018
- 4Charles Ng and Leonard Lake20 May 2018
- 5Cary Stayner27 May 2018
- 6Rodney Alcala3 Jun 2018
- 7Horst Kroener10 Jun 2018
- 8Wolfgang/Beate Schmidt17 Jun 2018
- 9Unterweger24 Jun 2018
- 10Pawel Tuchlin aka The Scorpion1 Jul 2018
Season 3
- 1Ted Bundy28 Apr 2019
- 2Aileen Wuornos7 Jan 2020
- 3Bobby Joe Long14 Jan 2020
- 4Gary Ridgway21 Jan 2020
- 5Dennis Rader28 Jan 2020
- 6Diane Downs4 Feb 2020
- 7Robert Berdella11 Feb 2020
- 8Robert Lee Yates18 Feb 2020
- 9Danny Rolling25 Feb 2020
- 10Karol Kot3 Mar 2020
Season 4
- 1Todd Christopher Kohlhepp26 May 2020
- 2David Berkowitz2 Jun 2020
- 3Robert Ben Rhoades9 Jun 2020
- 4William Suff16 Jun 2020
- 5Christopher Hightower23 Jun 2020
- 6Sante and Kenneth Kimes30 Jun 2020
- 7Richard Chase7 Jul 2020
- 8Angel Maturino Resendiz14 Jul 2020
- 9The Hillside Stranglers21 Jul 2020
- 10Daniel Lee Siebert28 Jul 2020
Season 5
- 1Lonnie Franklin19 Jan 2021
- 2William Bonin26 Jan 2021
- 3Jerry Brudos2 Feb 2021
- 4Keith Jesperson9 Feb 2021
- 5Arthur Shawcross16 Feb 2021
- 6Sun Set Strip Killers23 Feb 2021
- 7Patrick Wayne Kearney2 Mar 2021
- 8Dayton Leyroy Rogers - The Molalla Forest Killer9 Mar 2021
- 9Richard Roszkowski16 Mar 2021
- 10Cesar Barone23 Mar 2021
Season 6
- 1John Allen & Lee Malvo19 Oct 2021
- 2Robert Pickton26 Oct 2021
- 3Sean Vincent Gillis2 Nov 2021
- 4Don Miller9 Nov 2021
- 5Judy Buenoano16 Nov 2021
- 6Gary Ray Bowles23 Nov 2021
- 7Derrick Todd Lee30 Nov 2021
- 8Velma Barfield7 Dec 2021
- 9Chester Turner14 Dec 2021
- 10Genene Jones21 Dec 2021
Season 7
- 1Jorge Avila-Torrez22 Nov 2022
- 2Robert Hansen - The Butcher Baker29 Nov 2022
- 3Heriberto Seda - The New York Zodiac6 Dec 2022
- 4Charles Albright13 Dec 2022
- 5Joshua Wade20 Dec 2022
- 6Anthony Allen Shore: The Tourniquet Killer27 Dec 2022
- 7Mark Goudeau: The Baseline Killer3 Jan 2023
- 8Paul Runge10 Jan 2023
- 9Ronald Dominique - The Bayou Strangler17 Jan 2023
- 10Paul Michael Stephani - The Weepy-Voiced Killer24 Jan 2023
Season 8
- 1Lester Jones23 Nov 2023
- 2Jerald Wingeart30 Nov 2023
- 3John Eric Armstrong7 Dec 2023
- 4Richard Biegenwald14 Dec 2023
- 5Richard Kuklinski21 Dec 2023
- 6Richard Paul White28 Dec 2023
- 7Billy Mansfield Jr4 Jan 2024
- 8Randy Kraft11 Jan 2024
- 9Wayne Adam Ford18 Jan 2024
- 10Steven Dean Gordon25 Jan 2024
Season 9
- 1Glen McCurley7 Jan 2025
- 2William Devin Howell14 Jan 2025
- 3Michael Bruce Ross21 Jan 2025
- 4Donald Henry Gaskins28 Jan 2025
- 5Wayne Willams4 Feb 2025
- 6David Marmolejo11 Feb 2025
- 7Emanuel Lovell Webb18 Feb 2025
- 8Westley Allan Dodd25 Feb 2025
- 9Joel Rifkin4 Mar 2025
- 10Charles Cullen11 Mar 2025
Season 10
- 1Gregory Green25 Nov 2025
- 2Benjamin Atkins2 Dec 2025
- 3Edward Wayne Edwards9 Dec 2025
- 4Kenneth Jackson16 Dec 2025
- 5Leslie Allen Williams23 Dec 2025
- 6Edward Covington10 Mar 2026
- 7James Randall17 Mar 2026
- 8Granville Ritchie24 Mar 2026
- 9Ronald Honsch31 Mar 2026
- 10Diane & Rachel Staudte7 Apr 2026