In this riveting episode of Dark Matters Revisited, host Tamsin Thompson delves into the chilling mystery of the Circleville Letter Writer, an unknown individual who terrorized the small town of Circleville, Ohio, in the late 1970s and 1980s. From anonymous letters filled with accusations and threats to attempted murder, this enigmatic figure left a lasting impact on the community. Tamsin unravels the complex web of theories, suspects, and bizarre twists, while exploring the potential role of crowdsolving in shedding light on this eerie case.