>> i think the fbi was so involved because that is the fallout and legacy of the paris attacks. they wanted to consider that it could be terrorism. >> there was that altercation, it was a provocation, a reason to go back out, get the guns, get the getaway cars. he was anticipating this. amy bishop who didn't get tenure, went to her faculty meeting with a gun. they are ready with a confrontation. if it doesn't go their way, they're ready for violence. i don't think this was an organized or political, extremist. i think it was intrinsic. >> cnn is always on the air. we're going to see you back here tomorrow night, at least i will. our coverage continues now with isha sesay in los angeles, john vause in san bernadino. good night.