chief ramsy, this number of civilians, law enforcement as well, out in the open in the line of fire, and you have a gunman firing from an elevated position. for the people who are there, you don't know if you're running into a bullet or running away from a bullet. in a situation like this, it's extremely difficult for people, do i shelter where i am? do i try to run? no matter what direction you run to, you could be hit. >> right. it would be very chaotic. you wouldn't know which direction to run in. most people instinctively would probably run towards the exit they entered the venue in. so it would be mass confusion, in question about that. you're in an area where you probably have echos and things like that, so you really can't tell necessarily exactly where the shots are coming from. >> also, art, the fact there were two different locations, sleemd like he was shooting from two different rooms. obviously it makes police think perhaps there are multiple shooters, more than one shooter. and also makes it all the harder if he's pausing in between for police to get a beat on what floo