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Description
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H.H. Holmes: America's First Serial Killer

Introduction

Henry Howard Holmes, born Herman Webster Mudgett on May 16, 1861, is often considered America’s first known serial killer. Operating primarily in Chicago during the late 19th century, Holmes gained infamy for his elaborate "Murder Castle," a hotel designed for luring, torturing, and killing his victims. His crimes were discovered in 1894, leading to his arrest and eventual execution.

The "Murder Castle"

Holmes built a three-story building at 63rd and Wallace in Chicago, later known as the "Murder Castle." Under the guise of a hotel for visitors attending the 1893 World’s Columbian Exposition, it was a labyrinth of soundproof rooms, secret passages, trapdoors, and a basement equipped for body disposal. Many of his victims checked into the hotel but never checked out.

Crimes and Victims

Holmes lured individuals with promises of work, romance, or lodging, only to end their lives in brutal ways. Some victims were asphyxiated, others were gassed, while some were subjected to crude surgical experiments. He often disposed of bodies in his basement, stripping flesh from bones to sell skeletons to medical institutions. ...Read More
Victims
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Confirmed Victims: (10)
  • Julia Smythe Conner Age: (31), Date of Death: December 25, 1891
  •     ...View 9 additional victims
    Suspected Victims:
  • Doctor Robert Leacock , Date of Death: 1886-05
  • Unnamed boy , Date of Death: 1886
  • Unnamed boy , Date of Death: 1886
  • Doctor Russell , Date of Death: Late 1887
  • Rodgers , Date of Death: 1888
  • Charles Cole , Date of Death: 1888
  • Lizzie , Date of Death: 1888
  • Sarah Cook , Date of Death: 1888
  • Mary Haracamp , Date of Death: 1888-05-05
  • Russell , Date of Death: 1890
  • Rasine Van Jassund , Date of Death: 1891
  • Robert Latimer , Date of Death: 1891
  • Wade Warner , Date of Death: 1891
  • Unnamed banker , Date of Death: 1891
  • Unnamed woman , Date of Death: 1891
  • Virginia Anna Betts Age: (24), Date of Death: February 8, 1892
  • Eva Gertrud Conner , Date of Death: July 18, 1892
  • Unna
  • Killer's Details

    Henry Howard

    Holmes

    May 16, 1861 Gilmanton, New Hampshire, United States

    May 7, 1896 (aged 34) Philadelphia, Pennsylvania, United States

    Executed by hanging

    H. H. Holmes

    Male

    White

    Murder (First-degree)

    Death

    10-34 killed (200+ estimated/possible)

    December 25, 1891 - October 25, 1894 (confirmed)

    Illinois (U.S.), Indiana (U.S.), Pennsylvania (U.S.)

    Chicago

    1894

    Moyamensing Prison — Philadelphia

    07/03/2025