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Mark Harrison Sheer

Case from Mission-viejo, CA dated May 26, 2014

Victim Details

Mark Harrison Sheer

Male

White / Caucasian

Mission-viejo

CA

2014-05-26

55

Mark

Harrison Sheer

07/04/2026

Case Description

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Mark Harrison Sheer, aged 55, tragically died on May 26, 2014, in Mission Viejo, California. The incident was part of a devastating murder-suicide that shocked the local community. On May 27, 2014, authorities discovered the bodies of Mark Sheer, his wife Lydia Ann Sheer (54), their son Michael Harrison Davis Sheer (21), and their daughter Amy Joanne Sheer (15) inside their home on Pacific Hills Drive. The discovery was made by a relative who immediately contacted the authorities.

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Links to Additional Sources (9)

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  • latimes.com: Family identified in Mission Viejo murder-suicide
  • OC Weekly: Michael Sheer, 21, Suspected of Having Fatally Shot His Father, Mother, Sister and Self: Update
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    Forum Posts (2)

    I've been thinking a lot about Mark Sheer and how deeply involved he was with his church and communi... ...Read More
    12/25/2024
    I came across this case and just can't stop thinking about the Sheer family. I live fairly close to ... ...Read More
    07/12/2023
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