The person at the center of this case
Donald F Plasse
Missing Person · Open
257 days waiting
Missing Person: Donald F Plasse
Justice for Donald F Plasse — the trail went cold in 2026, but the truth hasn't.
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Key leads to think about
🔍
evidence
Lead #1What does the bank surveillance video show about Plasse's actions and demeanor in the hour before he entered the water?
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timeline
Lead #2Why was there a one-hour gap between the surveillance footage and his entry into the river—where was he during that time?
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clue
Lead #3Were there any witnesses present at or near Mueller Bridge who observed Plasse or any circumstances leading to his entry into the water?
Donald F Plasse, a 63-year-old man, entered the Connecticut River from the Mueller Bridge on Route 202 in South Hadley, Massachusetts on January 13, 2026, at approximately 3:15 PM. Despite multiple recovery efforts, he has not been located; winter ice conditions on the river have significantly hampered search operations. The circumstances surrounding why he entered the water remain unclear, and authorities continue to seek information that might aid in locating him.
Case
#1349
Massachusetts State Police - Northwestern District, Hampshire County District Attorney's Office
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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.
📍
location
Lead #4Has the search focused on areas downstream where currents might have carried him under the ice?
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Official wording
Source Narrative
NamUs case MP154205. Missing person: Donald F Plasse.
Last known contact: 2026-01-13 in South Hadley, Hampshire, MA. Circumstances: Mr.
Plasse entered into the Connecticut River off the Mueller Bridge on Route 202 in South Hadley on 1/13/2026 at approximately 1515 hours. Plasse has yet to be located despite multiple recovery attempts.
Due to the time of year, the river was covered in ice, making recovery efforts difficult. Demographics: 63 years, Male, White / Caucasian.
Physical description: 6 ft 0 in, 150 lbs, hair: Brown, eyes: Blue. Clothing and accessories: Clothing: Plasse was seen on bank surveillance video an hour before entering into the CT River wearing red/brown pants, a grey sweater, and a tan jacket.
It is believed these are the same clothes he was wearing upon entering the water.. Investigating agency: Massachusetts State Police - Northwestern District Attorney's Office - Hampshire County Office | 2026-109-26 | 2026-01-13.
Timeline of Events
👁️
2026-01-13
14:15Last seen on surveillance
Plasse observed on bank surveillance video wearing red/brown pants, grey sweater, and tan jacket
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2026-01-13
15:15Entered Connecticut River
Plasse entered the Connecticut River from Mueller Bridge on Route 202; ice conditions present on river
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:January 13, 2026 at 2:15 PM
Last Updated:May 15, 2026
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Phone: 4135869225
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Case Information
Incident:January 13, 2026 at 2:15 PM
Last Updated:May 15, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 4135869225
You can remain anonymous