A documentary about serial killer Edward Payne was commissioned by directors Jack Hamill and Brenda Hill on April5, 2011. Nearby a small hamlet in Oregon, Jack Hamil's partially decomposed body was recovered three weeks after his death. Police were led to a farmhouse on the outskirts of town after conducting an investigation into the incident. What they discovered there would rock the tightly-knit town to its foundations. The bodies of more than a dozen women were discovered in the basement. The kitchen table was littered with stacks of documentary cassettes. One of America's most infamous serial killers was about to be tracked down. Here's a behind-the-scenes look at the making of a serial killer's brainchild: