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Donald F Plasse

The person at the center of this case

Donald F Plasse

Case
#1349
SourceNamus MissingUpdated Jan 21, 2026
Massachusetts State Police - Northwestern District, Hampshire County District Attorney's Office
Missing Person · Open
162 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 #1

Bank surveillance video from approximately one hour before river entry—what does it reveal about Plasse's state of mind or circumstances?

📍
location
Lead #2

Why did Plasse enter the river at this specific location on this date? Were there triggering events?

💡
clue
Lead #3

Ice-covered river severely limited recovery efforts—could Plasse have survived or been swept downstream?

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; ice coverage on the river at that time of year significantly hampered search operations. His whereabouts remain unknown, and anyone with information is urged to contact the Massachusetts State Police.

Case
#1349
SourceNamus MissingUpdated Jan 21, 2026
Massachusetts State Police - Northwestern District, Hampshire County District Attorney's Office

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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
14:15

Last seen on surveillance

Plasse observed on bank surveillance video wearing red/brown pants, grey sweater, and tan jacket

👤
2026-01-13
15:15

Entered Connecticut River

Plasse entered the Connecticut River from Mueller Bridge on Route 202; river was ice-covered at time of incident

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