The person at the center of this case
Miguel Carlos Cosio Jr.
Missing Person · Open
38 years waiting · since 1987
Missing Person: Miguel Carlos Cosio Jr.
Justice for Miguel Carlos Cosio Jr. — the trail went cold in 1987, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1Why were there no keys in the truck and what happened to them?
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location
Lead #2What was the significance of Otay Lakes Road and why was the truck abandoned there?
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evidence
Lead #3Were there any forensic clues or personal items found in or around the vehicle?
Miguel Carlos Cosio Jr., a 22-year-old construction worker, disappeared on November 20, 1987, after leaving his job at a construction site in Chula Vista, California. Three days later, authorities discovered the company truck he had driven away in parked along Otay Lakes Road with no keys inside and no signs of struggle. Despite decades of investigation, the circumstances of his disappearance remain unknown, and the case remains unsolved.
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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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witness
Lead #4Did anyone see Cosio or the truck between leaving the construction site and its discovery three days later?
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 MP35774. Missing person: Miguel Carlos Cosio Jr..
Last known contact: 1987-11-20 in Chula Vista, San Diego, CA. Circumstances: Cosio left his job at a Chula Vista, California construction site and never came back.
Three days later, authorities found the company truck he drove away in, parked off the shoulder of Otay Lakes Road. There were no keys inside and no sign of a struggle.
Demographics: 22 years, Male, Hispanic / Latino. Physical description: 5 ft 8 in, 150 lbs, hair: Brown, eyes: Brown.
Clothing and accessories: Clothing: Roel Construction t-shirt, Levi jeans; Footwear: Tan work boots. Investigating agency: Chula Vista Police Department | C87-14833.
Timeline of Events
👤
1987-11-20
Miguel Cosio Jr. disappears
Cosio left his job at a Chula Vista construction site and never returned.
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1987-11-23
Company truck discovered
The company truck Cosio drove away in was found parked off the shoulder of Otay Lakes Road with no keys inside and no signs of struggle.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:November 20, 1987
Last Updated:September 26, 2026
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Phone: 6196915151
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Case Information
Incident:November 20, 1987
Last Updated:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 6196915151
You can remain anonymous