10 people involved in rape , and one watched and offered no help , police said . Richmond , California , police say student was gang raped for over two hours . Former student , 19 , and year - old arrested . `` We will be making arrests continually as we develop probable cause , '' said Richmond Police Lt. Mark Gagan . Student , 15 , is in the hospital in stable condition .
10 people involved in rape , and one watched and offered no help , police said . Richmond , California , police say student was gang raped for over two hours . Former student , 19 , and year - old arrested . Student , 15 , is in the hospital in stable condition .