Season 1
01. John Wayne Gacy: Evil Secret, Part 1
This is the shocking and gruesome mystery of John Wayne Gacy, a popular Chicago businessman and part-time clown who was leading a double life in the 1970s. By day he was a community leader and by night a predator of young men.
02. John Wayne Gacy: Evil Secret, Part 2
In Chicago, community leader and part-time clown John Wayne Gacy leads a double life, transforming into a monster who preys on male teenagers and becomes the most prolific serial killer of his day.
03. Charles Manson: The Devil's Work, Part 1
Charles Manson is a violent predator who has powers of persuasion that make it possible for him to convince his hippie followers to brutally murder innocent strangers
04. Charles Manson: The Devil's Work, Part 2
Charles Manson is a violent predator who has powers of persuasion that make it possible for him to convince his hippie followers to brutally murder innocent strangers
05. NorCal Rapist: Phantom Predator, Part 1
In Northern California, a masked predator meticulously plans his sexual assaults by studying the habits and routines of his female prey; after 27 years on the loose, police close in on the man they believe to be the NorCal Rapist.
06. NorCal Rapist: Phantom Predator, Part 2
In Northern California, a masked predator meticulously plans his sexual assaults by studying the habits and routines of his female prey; after 27 years on the loose, police close in on the man they believe to be the NorCal Rapist.
07. Aileen Wuornos: Monster Made, Part 1
A look at the deal makers and hangers-on who attached themselves to Aileen Wuornos, who is known as America's first female serial killer.
08. Aileen Wuornos: Monster Made, Part 2
A look at the deal makers and hangers-on who attached themselves to Aileen Wuornos, who is known as America's first female serial killer.
09. Zodiac Killer: I Am the Zodiac, Part 1
The Zodiac Killer terrorizes Northern California in the late 1960s; he taunts the public with cryptic clues, threats of violence and ciphers that are supposed to lead to his identity, but mostly go nowhere.
10. Zodiac Killer: I Am the Zodiac, Part 2
The Zodiac Killer terrorizes Northern California in the late 1960s; he taunts the public with cryptic clues, threats of violence and ciphers that are supposed to lead to his identity, but mostly go nowhere.
11. Jim Jones: Unholy Massacre, Part 1
More than 900 Americans died in an isolated jungle in northern Guyana in November 1978; Jim Jones has gone down in history as a madman who drove his followers to suicide, but the truth is more complicated and tragic than that.
12. Jim Jones: Unholy Massacre, Part 2
More than 900 Americans died in an isolated jungle in northern Guyana in November 1978; Jim Jones has gone down in history as a madman who drove his followers to suicide, but the truth is more complicated and tragic than that.