Police officers and other first responders are in mourning following the death of a state trooper Monday night. Trooper Paul Butterfield died during emergency surgery after he was shot during a traffic stop. Authorities say a man and woman exchanged gunfire with Butterfield during a traffic stop. The pair fled but were captured shortly after in Manistee County. Authorities there say the pair were involved in a shootout there, too. The male suspect was hospitalized with non-life threatening injuries. Butterfield was stationed at the Hart Post which is about 30-miles south of where the shooting took place.