check. this is a one off event, the person is going through some sort of mental health crisis that he got access to the plane is unfortunate but these aircrafts are serviced over night and they are maintained during the evening hours so they can fly during the day. this is just a tragic one off event. >> we know the ntsb and the faa and fbi have been notified and will be working on this, what is the first thing they'll look at. >> this is an fbi led investigation. the ntsb defers to fbi and any criminal type of investigation. i think the first thing you would do as anyone would do is review your procedures and go through ground procedures to see if security is in place and if there were any gaps in it. you would also frankly review