very dynamic situation. let's check in now with our bill. >> i'll tell people, we're going to keep a live picture up here and people let us know if anything happens. and we're going to be keeping track of the situation as we're talking about this. but we're here with lieutenant colonel mitch utterbach. also has consulted with our local law enforcement in some of their exercises. you have a terrorism background. you have that special forces, but a lot of similarities here, i would think. we're talking about a gunman in a building here with a large perimeter. complex situation. >> very complex, bill. and as we saw in the last five hours. el paso county sheriffs and the colorado springs police have been done a great job of isolating the perimeter. clearing buildings on the way in. and really isolating the very target itself. and i'm going to use military terminology. the target building. they used it to get officers inside. and i know they're really handling this like the complex