North Dakota assistant high school principal identified as Cass Lake drowning victim

Jon Patrick Koehmstedt, 41, was a father of two.

The Minnesota Star Tribune
August 12, 2025 at 11:58PM

The man who drowned in Cass Lake in northern Minnesota has been identified as Jon Patrick Koehmstedt, 41, of North Dakota, by the Cass County Sheriff’s Office.

An online obituary said Koehmstedt was a father of two and worked as an assistant high school principal in Grafton, N.D.

The Sheriff’s Office received reports of the drowning at 5:50 p.m. Saturday. Koehmstedt exited a pontoon boat to address a boat motor problem and did not resurface, according to a news release.

Koehmstedt’s body was found shortly before 8 p.m.

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Elliot Hughes

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Elliot Hughes is a general assignment reporter for the Star Tribune.

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