The person at the center of this case
Mark Alan Cohen
Missing Person · Open
15 years waiting · since 2011
Missing Person: Mark Alan Cohen
Justice for Mark Alan Cohen — the trail went cold in 2011, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1What boat was Cohen using and was it ever recovered or located?
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location
Lead #2Where was Cohen's boat launched from and what was his intended destination?
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clue
Lead #3Were there any witnesses to Cohen leaving the area or departing by water?
Mark Alan Cohen, a 55-year-old white male, went missing on May 30, 2011, from Palm Beach Gardens, Florida, after reportedly leaving in his boat. He was last seen wearing a polo shirt and blue jean shorts, and circumstances suggest he departed by water from the Palm Beach area. Despite over a decade passing, the case remains open with the Palm Beach County Sheriff's Office, and details about his intended destination and the condition of his vessel remain unclear.
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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.
🔍
evidence
Lead #4What investigation has been conducted regarding the boat and its condition?
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Official wording
Source Narrative
NamUs case MP13948. Missing person: Mark Alan Cohen.
Last known contact: 2011-05-30 in Palm Beach Gardens, Palm Beach, FL. Circumstances: Cohen is believed to have left in his boat.
Demographics: 55 years, Male, White / Caucasian. Physical description: 5 ft 8 in, 200 lbs, hair: Brown, eyes: Hazel.
Clothing and accessories: Clothing: Unknown color polo shirt, blue jean shorts. Investigating agency: Palm Beach County Sheriff's Office | 11-080119 | 2011-05-30.
Timeline of Events
👁️
2011-05-30
Last Known Contact
Mark Alan Cohen last known contact in Palm Beach Gardens, Palm Beach, FL. He is believed to have left in his boat.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:May 30, 2011
Last Updated:June 30, 2026
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Phone: 5616883000
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Case Information
Incident:May 30, 2011
Last Updated:June 30, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5616883000
You can remain anonymous