They calmed down student gunman, prevented more casualties, say police
                                
                                
                                    (Newser) -
                                    One student remains critically wounded after this morning's  school shooting  near Bakersfield, California, but it's becoming clear that the quick action of two school officials prevented a greater tragedy, police say. The  AP ,  LA Times , and  Bakersfield Californian  agree on the general sequence: A 16-year-old student burst into...