In the 1970's, a small city in Ohio became ground zero for a mysterious and threatening series of anonymous letters. As it turns out, the accusations these letters made weren't comlpetely untrue.
Source:
Has the anonymous author of the infamous Circleville letters been unmasked? - CBS News
The Creepy Letters That Exposed A Town's Juiciest Secrets — And Ended In Murder | Thought Catalog
