out domestic terrorism in this case? do you know? >> terrorism has not been ruled out. right now there are no indications of terrorism. but i can tell you that all avenues are being explored. and until it's officially ruled out, it's still technically possible. but i have to say right now there are no indicators of terrorism right now. it's probably still too early to rule it out entirely. right now looks as though it's not going to be terrorism. >> it was interesting that we, and i'm generalizing, tend to jump to terrorism when it probably, most likely, was mental illness that prompted this attack. specialist lopez was being evaluated for ptsd. suffering from depression. and anxiety. he was taking anti-depressants. should we be paying more attention to mental illness when it comes to these attacks? >> there's two issues. one, we should still be very concerned about terrorism. ft. hood was attacked once before and an attempted attack in july of 2011 that was stopped by private first class abdel.