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
🚗
vehicle
Lead #1What circumstances led Shawn to drive his black 2010 Lexus to the border at 2:30 AM? Was the crossing planned or spontaneous?
📞
contact
Lead #2Has anyone in Mexico seen or had contact with Shawn since his vehicle crossed the border on December 18, 2021?
⏰
timeline
Lead #3Why the gap between his last family contact and the border crossing time—what occurred in those hours?
Shawn Michael Demers, a 40-year-old man, 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 disappearance and border crossing remain unclear, and investigators are seeking information about his whereabouts and what prompted his travel to Mexico.
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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.
👤
person
Lead #4Did Shawn have connections, family, or associates in Mexico that might explain his travel?
💡
clue
Lead #5Has the vehicle been located or spotted in Mexico since the border crossing?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
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 Michael Demers last in contact with his family on December 18, 2021, in San Diego, California.
🚗
2021-12-18
02:30Vehicle Crosses Border
Black 2010 Lexus (CA 8WRC852) crossed from the United States into Mexico at approximately 2:30 AM on December 18, 2021.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:December 18, 2021 at 11:59 PM
Last Updated:June 30, 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 30, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 6195312000
You can remain anonymous