Circleville letters

From 1976 to 1994, residents of Circleville, Ohio, were terrorized by hundreds of anonymous, threatening letters exposing secrets. The harassment escalated to a fatal crash and a failed gun booby-trap targeting a bus driver. Her brother-in-law, Paul Freshour, was convicted of attempted murder when his gun was linked to the trap. Yet, the letters persisted even while he was in prison, leaving the writer's identity officially unsolved.