NEW : Such requests to drop charges are procedural and routine . Facial recognition and DNA tests confirmed bin Laden 's death , U.S. says . NEW : Chance of mistaken ID is 11.8 in about 1 quadrillion , official says in affidavit . The East Africa accused bin Laden in the 1998 U.S. embassy bombings in East Africa . A U.S. military raid killed bin Laden 's on May 2 .
NEW : Facial recognition and DNA tests confirmed bin Laden 's death , U.S. says . NEW : Chance of mistaken ID is 11.8 in about 1 quadrillion , official says in affidavit . The East Africa accused bin Laden in the 1998 U.S. embassy bombings in East Africa . A U.S. military raid killed bin Laden 's on May 2 .