FILE - This undated photo provided by U.S. Customs and Border Protection shows slain Border Patrol agent Nicolas Ivie. Three U.S. Border Patrol agents responding to an alarm from an und

 

              FILE - This undated photo provided by U.S. Customs and Border Protection shows slain Border Patrol agent Nicolas Ivie. Three U.S. Border Patrol agents responding to an alarm from an und
FILE - This undated photo provided by U.S. Customs and Border Protection shows slain Border Patrol agent Nicolas Ivie. Three U.S. Border Patrol agents responding to an alarm from an underground sensor were apparently in radio contact as they approached from opposite directions before opening fire on each other in the Arizona desert, leaving Ivie dead, according to a sheriff's report released Friday, Nov. 2, 2012. (AP Photo/U.S. Customs and Border Protection, File)