The person at the center of this case
David L. Guinn
Missing Person · Open
279 days waiting
Missing Person: David L. Guinn
Justice for David L. Guinn — the trail went cold in 2025, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1Why was the abandoned vehicle unusually clean, and what does this suggest about the circumstances of abandonment?
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timeline
Lead #2What happened during the eight-day gap between October 15 last contact and October 23 vehicle discovery?
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clue
Lead #3Why would David leave his driver's license, keys, baseball cap, and gloves in the vehicle at a remote trailhead?
David L. Guinn, a 64-year-old man, was last contacted on October 15, 2025, in Colorado Springs. His vehicle was discovered abandoned and unusually clean at the Monarch Lake Trailhead in Granby, Colorado on October 23, 2025, with his driver's license, truck keys, baseball cap, and gloves still inside. The circumstances of his disappearance remain unclear, and investigators are seeking information about what occurred during the eight days between last contact and vehicle discovery.
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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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location
Lead #4Was David hiking or attempting to access the Monarch Lake area, and did he have hiking plans on October 15?
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Official wording
Source Narrative
NamUs case MP151782. Missing person: David L.
Guinn. Last known contact: 2025-10-15 in Colorado Springs, El Paso, CO.
Circumstances: Last contact with David was on 10/15/2025. His vehicle was located abandoned but very clean on 10/23/2025 in Granby Colorado in the Monarch Lake Trailhead.
His drivers license, truck keys, baseball cap, and gloves were left in the truck. Demographics: 64 years, Male, White / Caucasian.
Physical description: 5 ft 9 in, 140 lbs, hair: Brown, eyes: Green. Investigating agency: El Paso County Sheriff's Office | 2025-13044 | 2025-10-18.
Timeline of Events
👁️
2025-10-15
Last Contact
David L. Guinn was last contacted in Colorado Springs, El Paso County, CO.
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2025-10-23
Vehicle Discovery
David's vehicle was located abandoned at Monarch Lake Trailhead in Granby, Colorado. The vehicle was very clean and contained his driver's license, truck keys, baseball cap, and gloves.
🕵️
2025-10-18
Investigation Opened
El Paso County Sheriff's Office opened case 2025-13044.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:October 15, 2025
Last Updated:June 11, 2026
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Phone: 7195207100
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Case Information
Incident:October 15, 2025
Last Updated:June 11, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 7195207100
You can remain anonymous