i'm not specifically familiar with what was taking place today. >> are the shooters believed to have left the facility by now? >> that certainly would be improper for me to make any communications about that. >> okay. well, i don't want to belabor anything if you can't -- is there anything else you can tell us that you feel comfortable telling us, mr. mayor? >> no, i do appreciate the cooperation of the media and following any instructions that p.d. or law enforcement. so please adhere to any admonishments they give you. >> all right, thank you, sir. let's go to chief medical correspondent dr. sanjay gupta. sanj sanjay, earlier we saw paramedics doing triage, victims are coming in as we speak. bring us into this process. what are emergency personnel doing right now to prepare for the victims and also as they come in? >> that is sort of several different phases to this, jake.