206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
⚠️ Warning: Viewer Discretion Advised ⚠️ The following section contains detailed information about serial killers, their crimes, and case details. Some content may be disturbing or graphic, including descriptions of violence, criminal behavior, and sensitive subject matter.
Description
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Frederick Mors: The Serial Killer of New York

Background

Frederick Mors, born Carl Menarik on October 2, 1889, in Vienna, Austria, was an Austrian serial killer who immigrated to New York City in June 1914. He gained employment as a porter at the German Odd Fellows' Home in Unionport, New York (now the Bronx), through the Immigrant Free Employment Bureau. The home housed 250 orphans and 100 elderly men and women.

Crimes

In the four-month period from September 1914 to January 1915, 17 residents—an unusually high number—died at the Home. Fearing foul play, the administration called the police to investigate. Mors had used arsenic and chloroform to murder at least eight of the elderly residents. He later claimed he was "putting them out of their misery."

Victims

  • Carl Hitzel, 78, by administering morphine
  • Henry Haensel, 67, by giving arsenic
  • Carl Garf, 65, by giving arsenic
  • Mrs. Katherine Piazza, 75, by giving chloroform
  • Mrs. Frederick Drey, 75, by giving chloroform
  • Mrs. Elizabeth Hauser, 70, by giving chloroform
  • Henry Horn, 68, by giving chloroform
  • Ferdinand Scholtz, 77, by giving chloroform
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Victims
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Confirmed Victims: (8)
  • Carl Hitzel Age: (78)
  •     ...View 7 additional victims
    Links to Additional Sources (10)
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    Killer's Details

    Frederick

    Mors

    October 2, 1889 Vienna, Austria

    Torrington, Connecticut, United States

    Frederick Maurice Beno

    Male

    White

    Herr Doktor

    Involuntary commitment

    8

    September 1914 - January 1915

    New York

    January 1915

    07/03/2025