H.H. Holmes is believed to be the United States’ first known serial killer. In 1886, Holmes, whose original name was Herman Mudgett, took a job as a pharmacist in Chicago. At this point, he changed ...

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Jeff Mudgett learned the shocking truth at a family dinner: His great-great-grandfather was H.H. Holmes, the infamous con man and serial killer who operated a so-called “Murder Castle” during the 1893 ...