they now have information, the atf has been racing the ing tra firearm. and what we're being told by u.s. officials is that he purchased this himself. he went into a gun store and was able to purchase this ar-15 on his own. we believe that it was done in the past year. and key here is that he passed the background check. now, don, what's interesting here is because he's 19, so if he purchased this a year ago, le let's say he's 18, that's perfectly legal. you can purchase this style of weapon at a firearm store at his age. what you can't purchase a handgun. because you have to be 21 to purchase a handgun. so it's kind of an interesting piece of detail here that there is nothing essentially preventing him from purchasing this weapon. >> so you have to be 21 to purchase a handgun, but only 18 for an assault-style weapon? >> that's the federal law. essentially, there was nothing preventing him, not his age,