>> neil: that is very interesting. the last question, how long did it take to put down the shooterment we know from experts there talking to the press, were called at 8:15 a.m. and by 9:15 a.m. it was over. but by that time, the shooter, who is now really getting a great deal of attention in the media, whether he worked there or not, aaron alexis, has killed now 13 people. 13 victims, which equals the body count in ft. hood, texas, as the worst military installation disaster, horrific military attack at that, since ft. hood in 2009. i've got aaron cullen joining us. from what you heard, authorities say they quickly wanted to take this guy down because if they didn't, he would have kept shooting. looks like within an hour after