Episode One discusses Jack The Ripper (even though he’s not American), since he is pretty much the first recognized serial killer. Since a lack of real footage is obvious, this episode uses footage from an old black and white movie, loosely based on Jack The Ripper.
Episode Nine explains how killers such as, The Green River Killer and BTK, were caught. Usually using sheer luck, or small, seemingly insignificant items. Interestingly, it also pokes a finger at the cops saying how they are reluctant to involve the FBI, or even share information between one another.