The Shawano County Sheriff's Department says Leon Felix Wychesit, 75, has died after the vehicle he was riding in crashed into a tree on Monday.
According to a news release, the accident happened near the 300 block of North First Street in Bonduel .
The 46-year-old driver, Tina Wychesit was flown to a Neenah hospital and is in critical condition.
Both parties are from Gillett.
An investigation into what caused the single vehicle crash is ongoing.
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