FILE - In this July 20, 1976 file photo, officials remove a truck buried at a rock quarry in Livermore, Calif., in which 26 Chowchilla school children and their bus driver, Ed Ray were held captive. Ray, the school bus driver hailed as a hero for helping 26 students escape after three men kidnapped the group and buried the entire bus underground in 1976 died on Thursday, May 17, 2012. He was 91. (AP Photo, File)