St. Louis authorities declared a state of emergency Monday as they prepared for a second night of protests marking a year since a police officer killed Ferguson teen Michael Brown. The move was announced by St. Louis County Executive Steve Stenger, who cited the violence that marred protests Sunday night in Ferguson. "The recent acts of violence will not be tolerated in a community that has worked so tirelessly over the last year to rebuild and become stronger," Stenger said in a statement. The St. Louis County Prosecuting Attorney's Office announced criminal charges against a man authorities say exchanged gunfire...