specialist ivan lopez the shooter? we learned he may have been battling post tra stress disorder. and that he and his family just arrived in february at ft. hood. they were with lopez s wife when she found out her husband was the shooter. take a listen. the news when they repeated the name, everybody just broke down in tears. it seems like it was disbelief and, you know, it was a lot of hurt at the same time. let s bring in pentagon correspondent barbara star. give us an indication of what else we re finding out. specialist ivan lopez, we have some facts, but of course investigators still now digging into everything they can find out about him. he did serve a four-month tour of duty in iraq back in 2011. that, of course, as the war was winding down. in addition, yes, he was being