explanation may be right here. what we got today also were five counts filed against him. one for attempted murder of a member of congress. one for first degree murder of a federal judge, judge john roll. first degree murder of a congressional aid, gabriel zimmerman, and attempted murder of two other aids to the congresswoman, pamela simon and ron barber, but the fbi director made it clear there could be additional charges coming, john. >> do we know his position right now? he was not cooperating. have they had luck in getting him to be more conversant. >> indications from the sheriff that he's not talking but i have asked a number of law enforcement forces whether he is or isn't. they are not saying much about it. >> one piece of new information is when we eh bought the gun. >> he bought it in november. he bought it legally from a store called sportsmen's warehouse. we know the army turned him away. we now know it was because he failed a drug test.