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LUDINGTON, Mich. - A 19-year-old man has been charged with murder in the shooting of a Michigan State Police trooper during a traffic stop in the northwestern Lower Peninsula.

Eric Knysz (NIZE) is charged with murder of an officer as well as three other crimes. His wife, Sarah Knysz, faces two charges related to driving away from the scene. Charges against the pair were filed Wednesday in Mason County District Court.

Trooper Paul Butterfield was shot in the head Monday night during a traffic stop in Sherman Township, about 80 miles north of Grand Rapids.

Magistrate Patricia Baker says Sarah Knysz is due in court Wednesday. Eric Knysz was injured while exchanging gunfire with police. He's in a hospital but is expected to appear in court Thursday.