The person at the center of this case
William Clayton Miller
Missing Person · Open
185 days waiting
Missing Person: William Clayton Miller
Justice for William Clayton Miller — the trail went cold in 2026, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1Why was Miller's vehicle abandoned at the Blue-Sky Ecological Preserve parking lot in Poway, and what does this location suggest about his movements?
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contact
Lead #2What was the content and tone of the final text message exchange with his estranged wife, and has she provided additional details about their relationship status?
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location
Lead #3What is the significance of Valley Center versus the Poway preserve location, and how far apart are these two sites?
William Clayton Miller, a 59-year-old man, was last contacted by text message on March 2, 2026, in Valley Center, San Diego, California. His vehicle was discovered abandoned at the Blue-Sky Ecological Preserve parking lot in Poway, raising serious concerns about his safety. The San Diego County Sheriff's Office Homicide Unit is actively investigating his disappearance and seeks information from the public.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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evidence
Lead #4Has any physical evidence or surveillance footage been recovered from the preserve or surrounding areas?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP159218. Missing person: William Clayton Miller.
Last known contact: 2026-03-02 in Valley Center, San Diego, CA. Circumstances: Miller was last contacted via text message by his estranged wife.
His vehicle was recovered at the parking lot to the Blue-Sky Ecological Preserve in the city of Poway. Demographics: 59 years, Male, White / Caucasian.
Physical description: 6 ft 0 in, 210 lbs, hair: Gray or Partially Gray, eyes: Brown. Clothing and accessories: Clothing: Frequently wears New Balance sneakers.
Investigating agency: San Diego County Sheriff's Office-Homicide Unit | 26110351 | 2026-03-18.
Timeline of Events
👁️
2026-03-02
Last Contact
William Clayton Miller last contacted via text message by his estranged wife in Valley Center, San Diego, CA
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2026-03-18
Case Assigned to Homicide Unit
San Diego County Sheriff's Office-Homicide Unit took over the investigation (Case #26110351)
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:March 2, 2026
Last Updated:June 17, 2026
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Phone: 8582856330
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Case Information
Incident:March 2, 2026
Last Updated:June 17, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 8582856330
You can remain anonymous