| Episode # |
Original
Air Date |
Titles |
| |
| Season 1 |
| |
| 1. | 1-1 | 17 Mar 19 | John Wayne Gacy: Evil Secret, Part 1 (60 min) |
| 2. | 1-2 | 17 Mar 19 | John Wayne Gacy: Evil Secret, Part 2 (60 min) |
| 3. | 1-3 | 24 Mar 19 | Charles Manson: The Devil's Work, Part 1 (60 min) |
| 4. | 1-4 | 24 Mar 19 | Charles Manson: The Devil's Work, Part 2 (60 min) |
| 5. | 1-5 | 31 Mar 19 | NorCal Rapist: Phantom Predator, Part 1 (60 min) |
| 6. | 1-6 | 31 Mar 19 | NorCal Rapist: Phantom Predator, Part 2 (60 min) |
| 7. | 1-7 | 07 Apr 19 | Aileen Wuornos: Monster Made, Part 1 (60 min) |
| 8. | 1-8 | 07 Apr 19 | Aileen Wuornos: Monster Made, Part 2 (60 min) |
| 9. | 1-9 | 14 Apr 19 | Zodiac Killer: I Am the Zodiac, Part 1 (60 min) |
| 10. | 1-10 | 14 Apr 19 | Zodiac Killer: I Am the Zodiac, Part 2 (60 min) |
| 11. | 1-11 | 21 Apr 19 | Jim Jones: Unholy Massacre, Part 1 (60 min) |
| 12. | 1-12 | 21 Apr 19 | Jim Jones: Unholy Massacre, Part 2 (60 min) |
| |
| Season 2 |
| |
| 13. | 2-1 | 12 Jul 20 | Son of Sam Part 1: The Duke of Death (60 min) |
| 14. | 2-2 | 12 Jul 20 | Son of Sam Part 2: I Am a Monster (60 min) |
| 15. | 2-3 | 19 Jul 20 | BTK Part 1: Bind, Torture, Kill (60 min) |
| 16. | 2-4 | 19 Jul 20 | BTK Part 2: The Taunting (60 min) |
| 17. | 2-5 | 26 Jul 20 | The Night Stalker Part 1: Summer of Terror (60 min) |
| 18. | 2-6 | 26 Jul 20 | The Night Stalker Part 2: I Will Be Avenged (60 min) |
| 19. | 2-7 | 02 Aug 20 | The Co-ed Killer Part 1: The Murder Capital of the World (60 min) |
| 20. | 2-8 | 02 Aug 20 | The Co-ed Killer Part 2: Thinking Murder All Day Long (60 min) |
| 21. | 2-9 | 09 Aug 20 | Robert Durst Part 1: World's Worst Fugitive (60 min) |
| 22. | 2-10 | 09 Aug 20 | Robert Durst Part 2: Nobody Tells the Whole Truth (60 min) |
| 23. | 2-11 | 16 Aug 20 | Dr Death Part 1: A License to Kill (60 min) |
| 24. | 2-12 | 16 Aug 20 | Dr Death Part 2: You're Next (60 min) |
| |
| Season 3 |
| |
| 25. | 3-1 | 02 May 21 | The Golden State Killer Part 1: Hunting Human Beings (60 min) |
| 26. | 3-2 | 02 May 21 | The Golden State Killer Part 2: Hiding in Plain Sight (60 min) |
| 27. | 3-3 | 09 May 21 | The Butcher Baker Part 1: Terror in the Wilderness (60 min) |
| 28. | 3-4 | 09 May 21 | The Butcher Baker Part 2: The Girls Who Got Away (60 min) |
| 29. | 3-5 | 16 May 21 | The Amityville Horror Part 1: Murdered One By One (60 min) |
| 30. | 3-6 | 16 May 21 | The Amityville Horror Part 2: Evil in the House (60 min) |
| 31. | 3-7 | 23 May 21 | The Dating Game Killer Part 1: Smooth Talker (60 min) |
| 32. | 3-8 | 23 May 21 | The Dating Game Killer Part 2: The Bite Mark (60 min) |
| 33. | 3-9 | 30 May 21 | The Iceman Part 1: The Murder Business (60 min) |
| 34. | 3-10 | 30 May 21 | The Iceman Part 2: Trapping a Serial Killer (60 min) |
| 35. | 3-11 | 06 Jun 21 | The Firestarter Part 1: A Wall of Flames (60 min) |
| 36. | 3-12 | 13 Jun 21 | The Firestarter Part 2: Chasing a Pyromaniac (60 min) |
| |
| Season 4 |
| |
| 37. | 4-1 | 05 Jun 22 | The Ken and Barbie Killers: Dead Ringer Pt. 1 (60 min) |
| 38. | 4-2 | 05 Jun 22 | The Ken and Barbie Killers: I Kidnapped a Girl Pt. 2 (60 min) |
| 39. | 4-3 | 12 Jun 22 | The Back to School Killer: A Fear in the Air Pt. 1 (60 min) |
| 40. | 4-4 | 12 Jun 22 | The Back to School Killer: Portrait of a Predator Pt. 2 (60 min) |
| 41. | 4-5 | 19 Jun 22 | Sammy the Bull Gravano Pt. 1 (60 min) |
| 42. | 4-6 | 19 Jun 22 | Sammy the Bull Gravano Pt. 2 (60 min) |
| 43. | 4-7 | 26 Jun 22 | The Hillside Stranglers: A Pair of Serial Killers - Part 1 (60 min) |
| 44. | 4-8 | 26 Jun 22 | The Hillside Stranglers: She Walked Into the Trap - Part 2 (60 min) |
| 45. | 4-9 | 10 Jul 22 | The Cross Country Killer: He Could Make People Disappear (60 min) |
| 46. | 4-10 | 10 Jul 22 | The Cross Country Killer: The Kill Kits (60 min) |
| 47. | 4-11 | 17 Jul 22 | John Gotti: It Was Kill or Be Killed Pt. 1 (60 min) |
| 48. | 4-12 | 17 Jul 22 | John Gotti: There Were Fatal Consequences Pt. 2 (60 min) |
| |
| Season 5 |
| |
| 49. | 5-1 | 16 Apr 23 | The Trailside Killer: Part One (60 min) |
| 50. | 5-2 | 16 Apr 23 | The Trailside Killer: Part Two (60 min) |
| 51. | 5-3 | 23 Apr 23 | The Slave Master: Part One (60 min) |
| 52. | 5-4 | 23 Apr 23 | The Slave Master: Part Two (60 min) |
| 53. | 5-5 | 30 Apr 23 | The Twin: Part One (60 min) |
| 54. | 5-6 | 30 Apr 23 | The Twin: Part Two (60 min) |
| 55. | 5-7 | 07 May 23 | The Times Square Killer: Part One (60 min) |
| 56. | 5-8 | 07 May 23 | The Times Square Killer: Part Two (60 min) |
| 57. | 5-9 | 14 May 23 | The Black Widow: Part One (60 min) |
| 58. | 5-10 | 14 May 23 | The Black Widow: Part Two (60 min) |
| 59. | 5-11 | 21 May 23 | The Happy Face Killer: Part One (60 min) |
| 60. | 5-12 | 21 May 23 | The Happy Face Killer: Part Two (60 min) |
| |
| Season 6 |
| |
| 61. | 6-1 | 15 Dec 24 | The Cleveland Strangler |
| 62. | 6-2 | 22 Dec 24 | The Sun Gym Sadists |
| 63. | 6-3 | 29 Dec 24 | The Black Hand of Death |
| 64. | 6-4 | 05 Jan 25 | A Family to Fear |
| 65. | 6-5 | 12 Jan 25 | The Man Eater |
| 66. | 6-6 | 19 Jan 25 | Thomas the Terrible |
| 67. | 6-7 | 26 Jan 25 | The Real Hannibal |
| 68. | 6-8 | 02 Feb 25 | The Angel of Death |
| |
