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Mary Guilfoyle

Death by Force
Case Description
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Mary Margaret Guilfoyle, a 24-year-old white female college student, was murdered on October 24, 1972, in Santa Cruz County, California. She was last seen hitchhiking to an interview when she was picked up by Herbert Mullin, a local man later identified as a serial killer. Mullin stabbed her to death during the drive, then partially dissected her body and scattered her remains in the Santa Cruz Mountains. Her skeletal remains were discovered on February 11, 1973, near Bonny Doon, California. ...Read More
Links to Additional Sources (3)
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  • Eileen Mary (Guilfoyle) Gilmore (1911-1992) | WikiTree FREE ...
  • Mary Molamphy Family History & Historical Records - MyHeritage
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    Victim Details

    Mary Guilfoyle

    Female

    White / Caucasian

    Santa Cruz

    CA

    1992-10-24

    24

    Mary

    Guilfoyle

    11/08/2025

    Forum Posts (2)
    I was reading about Mary Guilfoyle's tragic case, and something that really struck me was how prime ... ...Read More
    09/21/2023
    I've been diving into the details of Mary Margaret Guilfoyle's tragic case, and one thing that's sta... ...Read More
    08/20/2023
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