206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Christopher Yost

Death by Force
Case Description
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Christopher Yost, aged 34, was tragically murdered on September 24, 2016, in Fullerton, California. The incident occurred in the early morning hours when Yost, his wife Jennifer Yost, and their friend Arthur "Billy" Boucher were brutally gunned down in their home. The murders were carried out by Joshua Acosta, a 21-year-old former Army mechanic, who was assisted by Frank Felix, a 25-year-old man from the San Fernando Valley. The motive behind the killings was rooted in Felix's obsession with the ...Read More
Links to Additional Sources (10)
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  • The Orange County Register: No charges are filed Tuesday against 17-year-old girl in triple homicide in Fullerton
  • The Orange County Register: Fullerton triple homicide: Victims identified; 2 men and 17-year-old girl arrested in killings
    •     ...View 8 additional sources
    Victim Details

    Christopher Yost

    Male

    White / Caucasian

    Fullerton

    CA

    2016-09-24

    34

    Christopher

    Yost

    11/30/2025

    Forum Posts (3)
    Hey everyone,
    I can’t stop thinking about how senseless and tragic this whole situation is. I w... ...Read More
    12/29/2024
    Wow, the details of this case continue to disturb me, especially when I think about Christopher Yost... ...Read More
    07/14/2024
    I can't help but feel a deep sense of sorrow for the Yost family and Billy Boucher. One aspect of th... ...Read More
    12/01/2023
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