The person at the center of this case
Shawn Michael Demers
Missing Person · Open
4 years waiting · since 2021
Missing Person: Shawn Michael Demers
Justice for Shawn Michael Demers — the trail went cold in 2021, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1Why did Shawn's black 2010 Lexus cross into Mexico at 2:30 AM? Was this planned or unexpected?
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timeline
Lead #2What occurred between his last family contact and the border crossing? Was there a time gap or were these events sequential?
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location
Lead #3Has the vehicle been located in Mexico? Any sightings or reports of the Lexus or Shawn in Mexican border towns?
Shawn Michael Demers, a 40-year-old male, was last in contact with his family on December 18, 2021, in San Diego, California. His black 2010 Lexus crossed the U.S.-Mexico border near San Diego at approximately 2:30 AM that same day, and he has not been seen or heard from since. The circumstances surrounding his border crossing and current whereabouts remain unknown, making continued investigation and public awareness critical to locating him.
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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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person
Lead #4What was Shawn's state of mind and circumstances before disappearing? Any personal or financial troubles?
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Official wording
Source Narrative
NamUs case MP91119. Missing person: Shawn Michael Demers.
Last known contact: 2021-12-18 in San Diego, San Diego, CA. Circumstances: Shawn Demers was last in contact with his family on 12/18/21.
His vehicle, a black 2010 Lexus (CA 8WRC852), crossed into Mexico from the US on 12/18/21 at about 2:30AM. He has not been seen or heard from since.
Demographics: 40 years, Male, White / Caucasian. Physical description: 6 ft 0 in, 215 lbs, hair: Red/Auburn, eyes: Hazel.
Investigating agency: San Diego Police Department | 21501166 | 2021-12-24.
Timeline of Events
👁️
2021-12-18
23:59Last Contact with Family
Shawn Demers was last in contact with his family on December 18, 2021, in San Diego, California.
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2021-12-18
02:30Vehicle Border Crossing
His black 2010 Lexus (CA 8WRC852) crossed from the U.S. into Mexico at approximately 2:30 AM.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:December 18, 2021 at 11:59 PM
Last Updated:June 24, 2026
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Any information, no matter how small, could be crucial to solving this case.
Phone: 6195312000
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Case Information
Incident:December 18, 2021 at 11:59 PM
Last Updated:June 24, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 6195312000
You can remain anonymous