In the early morning of 14 June, according to authorities, Vance Luther Boelter, disguised as a police officer and wearing body armor and a face mask, drove his black Ford Explorer SUV, equipped with flashing lights, to the home of the Minnesota state senator John Hoffman. There, he shot Hoffman nine times, critically wounding him, and shot his wife eight times as, relatives say, she threw her body over her daughter to shield her. He next drove to the home of the former house speaker Melissa Hortman, forced his way in, and killed her and her husband, officials say. The...