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Diane Trenner

Case from Santa-barbara, CA dated Jan 05, 1985

Victim Details

Diane Trenner

Female

Santa-barbara

CA

1985-01-05

4

Diane

Trenner

06/21/2026

Case Description

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On January 5, 1985, a tragic event unfolded at the McNamara family ranch in Santa Barbara, California. Diane Trenner, a 4-year-old girl, was among the victims of a horrific shooting spree carried out by her uncle, Barry McNamara. The incident, which has been described as the worst massacre in Santa Barbara County's history, resulted in the deaths of four family members: Diane Trenner, her mother Diane L. Trenner, her grandparents Elger and Florence McNamara.

The massacre began shortly bef ...
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Links to Additional Sources (2)

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  • Kellin Brooke Trenner (1980-1985) - Find a Grave...
  • A jury who says a man convicted of killing... - UPI Archives

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    Forum Posts (3)

    I was reading about the tragic McNamara family massacre recently, and I can't stop thinking about th... ...Read More
    09/09/2024
    Has anyone else looked into the background of Barry McNamara’s mental health history? It's really ... ...Read More
    07/06/2024
    Has anyone else looked into the role of mental health support (or lack thereof) leading up to these ... ...Read More
    03/26/2023
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