The harassment of Bill and Dorothy Wacker.

Everybody knew Bill and Dorothy Wacker. They were a quiet retired couple that lived in the same town for most of their lives. They never caused any problems and simply did their own thing. What started as several break-ins, quickly escalated to physical assault and over a decade of harassment. How does someone harass a couple for over 10 years and not get caught? Despite an extensive investigation, one question remained. Who was responsible for making Bill and Dorothy Wackers life a living nightmare for so long?