Melissa Moore--daughter of Keith Hunter Jesperson, infamously known as the "Happy Face Killer" tells her own personal story as the daughter of a serial killer. The episode reveals shocking behind-the-scenes accounts of what it was like growing up with a father who, she later learned, was committing horrific murders.

Randy Hausner--brother of serial shooter Dale Hausner--shares the inside story of a man who terrorized the city of Phoenix in a year and a half-long killing spree. He reveals his brother's never before seen journal disclosing a chilling view on the development of a killer.