executed this attack, the fact that he killed the number of people that he did. the fact that he was able to get to the third floor and not only shoot people on the third floor but aim down into the atrium shooting them as well. he had some foreknowledge or idea of what went on in that building and what the layout was to get where he needed to be. >> just to clarify, your contention is there was not some sort of security issue here. there is not going to at the end of the investigation, no breach is going to be revealed? >> i wouldn't say that. i would say that we need to do the investigation to find out was there a security breach. if there was a shortfall, where was it, why did it occur and what do we need to do to fix it not only here in this building but other buildings throughout the navy. >> commander, thank you so much. i do appreciate your time. >> thank you, sir. i am sick of this. i must have touched a chord in america. >> a doctor's candid comments on gun control after treating