MILWAUKEE—A Milwaukee police officer was shot and wounded in an exchange of gunfire with a man who was initially found slumped over the wheel of a vehicle, the third shooting of a law enforcement officer in the city in two weeks. The officer arrived for a call to check on a sick or disabled person just before 6:30 p.m. Thursday and the man in the vehicle brandished a gun, Milwaukee Police Chief Jeffrey Norman said. The officer and the 22-year-old man exchanged gunfire, police said, and both were struck. The officer was hospitalized with wounds that were described by police as nonfatal. “After an exchange of gunfire, the suspect entered the wounded MPD officer’s squad car and fled the scene,” Norman said told reporters. The man reportedly crashed into another vehicle, ran away, and was later captured by police. He and the person in the vehicle he crashed into were …