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Mark John Dreibelbis

Case from Santa-cruz, CA dated Feb 10, 1973

Victim Details

Mark John Dreibelbis

Male

Santa-cruz

CA

1973-02-10

15

Mark

John Dreibelbis

06/27/2026

Case Description

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Mark John Dreibelbis, a 15-year-old boy from Santa Cruz, California, tragically lost his life on February 10, 1973. His death was part of a horrific event orchestrated by Herbert Mullin, a notorious serial killer active in the early 1970s. Mullin, who was suffering from severe mental illness exacerbated by drug use, believed that his actions were necessary to prevent catastrophic earthquakes. On the day of the incident, Mullin encountered Mark and three other teenage boys—Robert Michael Specto ...
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Links to Additional Sources (6)

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  • Herbert Mullin - Wikipedia
  • Mark John Dreibelbis (1957-1973) - Find a Grave Memorial
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    Forum Posts (3)

    I can’t stop thinking about the BSA hat found at the scene. It just conjures such a vivid image of... ...Read More
    11/23/2024
    I recently read about the tragic events surrounding Mark John Dreibelbis's death, and one aspect tha... ...Read More
    11/08/2023
    I’ve been digging into the details of the Herbert Mullin case and just came across the story of Ma... ...Read More
    01/21/2023
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