I was working on a satirical novel about a charismatic preacher who takes over a small Indiana town. Then I remembered Jim Jones was from Indiana and Googled him. I learned that the FBI had recently released all the documents that agents collected from Jonestown after the massacre - over 50,000 pieces of paper and almost 1,000 audio tapes. I started reading the files and couldn't tear myself away; I find "true" stories inherently more powerful than fiction.