the stuff we were talking about when non-islamic terrorism happened that some guy just snaps and guns down his high school or guns down a shopping mall. this isn't that there is something more to it going on. >> tucker: which even makes the motive for it more confusing. if he had no political or religious agenda, why do something like this? very, very striking. really quickly, the briefers today said there was no indication of severe mental illness. we do know he was prescribed psychotropic drugs. is it so crazy to wonder if people's behavior isn't affected by the drugs they take. is that a crazy thing to ask? >> i think that's true. what i find slightly difficult in this case, tucker is, that a drug could have that effect on him but not impact his ability to function at a very high