True Crime Files

What turns a 12 year old girl into a bloodthirsty killer?

In 1999 and 2000, women began disappearing from Detroit's thriving areas of prostitution. No one suspected that John Eric Armstrong, a seemingly normal father was actually a killer.

Over a 25-year career of murder, Richard Biegenwald killed at least six people as he sought out ever more violent and inventive ways of dealing death.