Speck was a violent mass murderer that bound, strangled, and/or stabbed eight nursing students in Chicago.

High schoolers in the series also ask Tate why he targeted jocks which was a goal of Harris massacre.

Even more eerie is that this haunting case has still never been solved.

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Barnums Greatest Show on Earth, W.W. Coles Circus, and more.

After he was eventually caught, he earned the nickname The Killer Clown, similar to our terrifying Twisty.

This syndrome causes ectrodactyly hands that seemingly resemble lobster claws.

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His awe-striking strength became a common trope in circus sideshows, thus inspiring the character of Dell Toledo.

Throughout history, circus performers with this condition were deemed as pinheads similar to AHS characters Pepper and Salty.

Barnums first major circus attraction due to Strattons small stature.

He toured with the circus for over four decades, joining Barnums sideshows at the mere age of five.

Ma Petites character on AHS directly links back to Stratton.

H. H. Holmes (James March)

Commonly referred to as Americas first serial killer,H.

Rumors circled of a massacre taking place, but the colonists were never found.

With references from things as niche as the Wendys Wheres the beef?

Another glaring similarity is between the black pills residents use to turn into blood-suckers and Costas frequent drug use.