FILE - This aerial view shows the destroyed north side of the Alfred P. Murrah Federal Building in Oklahoma City after a massive bomb blast, April 19, 1995. (AP Photo, File)
FILE - An unidentified man, his face covered with blood, looks at the bombed Alfred P. Murrah Federal Building in Oklahoma City on April 19, 1995. (AP Photo/David Longstreath, File)
FILE - Rescue workers dig through the rubble from the Alfred P. Murrah Federal Building explosion in downtown Oklahoma City on April 20, 1995. (AP Photo/J.Pat Carter, File)
FILE - Medical assistants Janet Froehlich, Wilma Jackson and Kerri Albright run from the Alfred P. Murrah Federal Building after being told another bomb device had been found on April 19, 1995, in Oklahoma City. (AP Photo/David J. Phillip, File)
FILE - A woman comforts an injured child following an explosion at the Alfred P. Murrah Federal Building in Oklahoma City on April 19, 1995. (AP Photo/David Longstreath, File)
FILE - This aerial view shows the destroyed north side of the Alfred P. Murrah Federal Building in Oklahoma City after a massive bomb blast, April 19, 1995. (AP Photo, File)
XAG JWE PAS
FILE - An unidentified man, his face covered with blood, looks at the bombed Alfred P. Murrah Federal Building in Oklahoma City on April 19, 1995. (AP Photo/David Longstreath, File)
XAG JWE DLL PDS **NY** PDS **NY*
FILE - Rescue workers dig through the rubble from the Alfred P. Murrah Federal Building explosion in downtown Oklahoma City on April 20, 1995. (AP Photo/J.Pat Carter, File)
XAG JAS
FILE - Medical assistants Janet Froehlich, Wilma Jackson and Kerri Albright run from the Alfred P. Murrah Federal Building after being told another bomb device had been found on April 19, 1995, in Oklahoma City. (AP Photo/David J. Phillip, File)
XAG DJP
FILE - A woman comforts an injured child following an explosion at the Alfred P. Murrah Federal Building in Oklahoma City on April 19, 1995. (AP Photo/David Longstreath, File)
