A person was killed over the Memorial Day weekend in a single vehicle crash southwest of the Calhoun County line.

The Michigan State Police Marshall Post says that on Sunday at approximately 8:50 p.m., they were called to the 26,000 block of Simpson Road in St. Joseph County’s Mendon Township to investigate a one vehicle crash; authorities say that “for an unknown reason”, the driver of a 2014 Ford F150 pickup truck left the road and crashed into the tree line.

One person, a 37-year-old male, was pronounced dead at the scene. Michigan State Police have identified Bradley Older of East Leroy and Plainwell, MI. as the lone fatality in the accident. A second adult, identified as Ivan Gough of Adrian, was in the bed of the truck at the time of the accident but was uninjured.

Michigan State Police say they suspect a medical condition led to the crash. Autopsy results are still pending.

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