officials to d s ts to do at t? >> well, one of the things i'm certain they're doing is utilizing the network of security cameras within the mall to try to isolate the shooter. likely there's law enforcement camped out in the security office of the mall so that they can monitor the cameras, figure out who's not sheltering, who's still moving, looking for evacuation, if someone ran out the back, whether there were get-away cars or not, and coordinating that activity to isolate the shooter. the possibilities could be so myriad that it's almost dangerous to engage in the conjecture, but if there's moving and multiple shooters, could be gang activity, could be something far more complex and organized. let's hope that's not true. we are hearing reports of sen assault weapons that heightens the problems with high capacity