The person at the center of this case
Adam Paul Kaplan
Missing Person · Open
18 years waiting · since 2007
Missing Person: Adam Paul Kaplan
Justice for Adam Paul Kaplan — the trail went cold in 2007, but the truth hasn't.
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Key leads to think about
👤
person
Lead #1What were Adam's activities and plans for December 28, 2007?
📞
contact
Lead #2Who was the last person to have contact with Adam before his disappearance?
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location
Lead #3What specific location in Contra Costa County was Adam last seen at?
Adam Paul Kaplan, a 24-year-old white male, was last seen on December 28, 2007, in Contra Costa County, California. Nearly two decades later, the circumstances of his disappearance remain unclear, with limited details about his last known location or activities. Anyone with information about Adam's whereabouts or what happened to him is urged to contact the Contra Costa County Sheriff's Office.
Case
#4061
Contra Costa County, California
Contra Costa County Office of the Sheriff
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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.
💡
clue
Lead #4Are there any witnesses who can provide details about Adam's disappearance or his state of mind at the time?
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 MP36523. Missing person: Adam Paul Kaplan.
Last known contact: 2007-12-28 in N/A, Contra Costa, CA. Circumstances: Adam was last seen on December 28, 2007.
Demographics: 24 years, Male, White / Caucasian. Physical description: 5 ft 11 in, 175 lbs, hair: Brown, eyes: Hazel.
Investigating agency: Contra Costa County Office of the Sheriff | SP0731905.
Timeline of Events
👁️
2007-12-28
Last Seen
Adam Paul Kaplan was last seen on December 28, 2007, in Contra Costa County, California.
Case Information
Incident:December 28, 2007
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9253351500
You can remain anonymous
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Case Information
Incident:December 28, 2007
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9253351500
You can remain anonymous