Holmes was apprehended soon after he fled Chicago, in October 1893, following the conclusion of the World’s Fair. He was arrested in Boston and eventually suspected of murdering his assistant, Benjamin Pitezel, and two of Pitezel’s children.

H.H. Holmes is notoriously known as one of America's first serial killers who lured victims into his hotel dubbed the “ Murder Castle ” during the Chicago World’s Fair in 1893. According to some claims, he killed up to 200 people inside his macabre hotel that was outfitted with trapdoors, gas chambers and a basement crematorium.

Chicago was home to a serial killer during the fair. For several years before and during the exposition, Herman Mudgett, aka H.H. Holmes, was busily luring victims (including a number of fairgoers) to a three-story, block-long building, later known as the “Murder” Castle, where they were tortured, mutilated and killed.

In the late 19th century, H.H. Holmes was the proprietor of a hotel in Chicago around the time of the 1893 World’s Fair. He renovated the building to make it easier to surreptitiously kill his guests and dispose of their bodies through the basement. At his “Murder Castle,” he is believed to have killed more than 200 people.

Herman Webster Mudgett, aka Dr. Henry Howard Holmes, is one of America’s first noted serial murderers. He killed at least 27 women during the 1893 World’s Columbian Exposition (e.g., World’s Fair) in Chicago.