this was someone who was embraced and had been vetted through the process that exists, nearly a thousand saudis are in similar positions in bases across this country. now they're wondering whether this was possibly terror related. what was your take given right now what you heard the sheriff say that the head of the fbi has been briefed and the fbi the lead agency tonight. >> obviously, the question is, of course, motivation and here's what's interesting about this case, is he's been here for two years. so the vetting process clearly took place two years ago and what the dod vets for his drug use, criminal behavior or terror nexus, that is a defense department review and we're not dependent on the saudis for that or any other country. once the review happens, the person is then considered vetted, but he's been here for two years and i'm being careful for motivation at this stage because a lot happens in two years.