There’s always more than what meets the eye. The friendly town of Circleville, Ohio is perhaps most known for its annual Circleville Pumpkin Show, “The Greatest Free Show On Earth,” which draws thousands of people from all over the state of Ohio (and even out of state) together every year for family fun, contests, and pumpkin-flavored everything. But what many people don’t know about Circleville, is that for several years a dark mystery hovered over the town, and it’s still the most talked-about unsolved mystery in the state of Ohio.

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The small town of Circleville and the people of Pickaway County began to encounter what some might call a real-life murder mystery experience in the late 1970s, when thousands of individuals started receiving mysterious letters in their mailboxes about their personal lives, and the lives of others in town.

The letters were written in block style and contained vindictive, violent, and vulgar material. Thousands of threatening letters were sent to residents for several years. An attempted murder was even believed to have been connected to the letters—and in spite of a convicted suspect, the letters continued even after the suspect was placed in prison.

Throughout the years, the letters continued to arrive in residents’ mailboxes—both city officials and average citizens alike—until the late 90s. The writer was never revealed, and to this day the people of Circleville don’t know who was watching them so closely.

For a more in-depth look at this baffling unsolved mystery, check out the video below:

What do you think about this unsolved mystery in Ohio? What are your theories about the Circleville Letter Writer?

We love writing about spooky and haunted happenings in our home state. Read 11 Haunted Places In Ohio That Are Super Creepy to learn about more mysteries of Ohio.

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Unsolved Mystery In Ohio

What are the most haunted places in Ohio?

Athens, in general, is one of the most haunted towns in the country. You'll find that Ohio University in Athens, is one of the most haunted college campuses, too! Another creepy haunted spot, the Moonville Tunnel, is found in Vinton County. The old abandoned rail tunnel is haunted by a man who was killed by a passing train. In Granville, the state's most haunted hotel is the Buxton Inn. It was founded in 1812 and is home to the spirits of several former innkeepers.

Can I visit any abandoned places in Ohio?

While many abandoned spots in Ohio are on private property, one fun spot to check out is the Detroit-Superior Bridge. Beneath, a lower streetcar level has been left to decay since 1954. A few times a year, the Cuyahoga County Engineer’s Office opens the system to the public for urban exploration. Keep an eye out for their next public tour day!

What are the creepiest cemeteries in Ohio?

The most famous cemetery in Ohio, Lake View Cemetery, is also one of the spookiest. More than 100,000 graves can be found across more than 285 acres of land. Famous people like John D. Rockefeller, James A. Garfield, and Eliot Ness are buried here, and there's an eerie Angel of Death statue that looks out over the grounds. The Greenlawn Cemetery, in Columbus, is home to a supposedly haunted mausoleum, where it's said you can knock - and someone will knock back.