FBI: Friendly fire likely in border shootings - Article Photos 4/7

Christy Ivie, right, the wife of slain Border Patrol agent Nicolas Ivie, holds back tears as she stands with her father, Tracy Morris and her mother DeAnn Morris, at a news conference Thursday, Oct. 4 , 2012, at the Cochise College in Sierra Vista, Ariz. Nicholas Ivie was gunned down Tuesday, Oct 2, as he responded to a tripped sensor on the USA side of the border fence, near the small border town of Naco, Ariz. Ivie's partner was also hit in gunfire during the exchange, but was released from a Tucson hospital on Wednesday. (AP Photo/Gary M. Williams)