1. The Colchester Rapist
A serial rapist stalks and preys on elderly women in a reign of terror that spans nearly two decades.
Forensic Factor — Season 5
2. Atomic Dog
A sniper who targets abortion doctors turns murderous, throwing a city into panic.
3. The Eclectic Murders
A sniper who targets abortion doctors turns murderous, throwing a city into panic.
4. Smiley Face Killer
Investigators probe the murders of prostitutes in Spokane, where the killer has left the victims with smiling mementos.
5. Forsaken
A jogger discovers the partially mummified remains of a human body.
6. The Fifth Commandment
A double homicide in Hudson, Wisconsin leaves a small town reeling and two young detectives with little to go on.
7. Knock, Knock, You're Dead
In 2001, the Louisiana State University area of Baton Rouge was held hostage by a serial killer.
8. Pyromaniac
Profiling arsonist John Leonard Orr.
9. Leaving Las Vegas
Las Vegas shows its darker side when the burnt body of a prominent business man is uncovered.
10. Greetings from Yahweh
A phantom sect of white supremacists claims responsibility for a series of bombings and bank robberies in Spokane.
11. Picture Perfect
Four people are found slaughtered in a factory in Bartow, Florida but the prime suspect has a perfect alibi.
12. Bike Path Rapist
A 22-year-old college student is found raped and strangled with a garrotte on a Buffalo bike path.
13. To Catch a Serial Killer
The world's top criminal investigators, forensic scientists and behavioural analysts investigate three cases of serial killers.