CNN---A California high school student who police said was gang raped in a two-and-a-half-hour assault outside a homecoming dance remained hospitalized in stable condition Monday, two days after she was flown from the attack scene in critical condition. As of late Monday, two suspects had been arrested in the case and a third was being questioned. "There is one individual in custody who has made some spontaneous statements that have led me to believe that he is culpab…