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>> reporter: that's a great question. first we know the bodies were transported separately so the body of abdulazeez was transported in a different plane than the bodies of the victims from here in chattanooga, we know the body is in custody of federal officials. that's like lie why the investigators wanted to receive his body as this investigation goes forward, but certainly a poignant moment here in chattanooga yesterday as there was an informal procession as the hearst of one of the last victims petty officer randall smith, as he was transported to the airport, his mother coming to the memo...

Want to know if he was exposed to radical thought abroad. this is still being treated by the fbi as a terrorist investigation, but sources say they still have a lot of work to do until they figure out a motive and whether he was inspired or directed by a terrorist group. at this point it appears far from clear-cut. >> it's still relatively early. pamela thanks very much. sunlen surfatty is on the scene for us. what does the family saying? >> reporter: they are really gift investigators a fuller picture of the personal battle he was struggling with. they say he had been using drugs for some tim...