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Trooper Donald Bert Ziesmer | Minnesota State Patrol, Minnesota Minnesota State Patrol, Minnesota


Donald Bert Ziesmer

Minnesota State Patrol, Minnesota

End of Watch: Monday, October 15, 1973

Bio & Incident Details

Age: 46

Tour: 13 years

Badge # 180

Cause: Gunfire

Weapon: Rifle; .22 caliber

Offender: Committed suicide

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Trooper Ziesmer was shot and killed while making a traffic stop of a van. One of the suspects exited the van and opened fire with a .22 caliber rifle, striking Trooper Ziesmer while he was still sitting in his cruiser. The suspect then committed suicide.
Trooper Ziesmer had been with the agency for 13 years and was survived by his wife and three daughters.

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Most Recent Reflection

Good morning,

Over the weekend, Saturday marked the anniversary of Trooper Donald Zeismer’s death in the line of duty. He was fatally wounded by a suspect who opened fire on him while he was still seated in the squad car during a traffic stop on Highway 61 near Tofte. Trooper Zeismer was survived by his wife and three daughters.

Please keep the Zeismer family in your thoughts and prayers.


Colonel Matt Langer
Chief, Minnesota State Patrol

An email from the Colonel to the entire state patrol, marking your fathers end of watch anniversary. Thought you might be interested that he is remembered for his service.

Trooper D.J. Weinrich
Minnesota State Patrol
October 21, 2016


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