i want to talk with cedrick alexander who is joining us live. so much uncertainty and chaos.e records giving us some insight into the real time communications. what i would like to understand from you, coming on a scene like that where there are a lot of dynamics playing out, people are bleeding to death instantly, people are possibly in the line of fire, police could be in the line of fire, what's the priority? save the ones you can save. take the bad guy out while others might die in the process. i'm really not sure how you prioritize in the heat of the war. >> put yourself in this position. you are in your radio car, shots fired, you respond. you are receiving limited information. you arrive to that scene within probably two, three minutes, maybe earlier. you know there may be an officer that was on the scene working off duty. there is a lot of radio transmission. you get to the scene, hear shots fired. you go in. you go in with others. i think this case in which orlando did. you are walking into an environment which you know nothing about, the schematic layout. you have i

let me come to cedrick alexander. mass casualty is a very important classification.ment to now turn this from multiple injuries to mass casualty? >> that is very strong language and what they are telegraphing to us there could be some very significant casualties there, not just injuries. >> is there typically a minimum number that changes from -- >> not necessarily. not necessarily. it certainly depends on the situation. we know that a night club on a saturday night, it probably was a very, very large crowd. what's going to be determined here once a press conference is conducted, we'll have a better assessment in terms of what they mean by mass casualty. if they are tweeting out mass casualty, then they are pretty convinced that this is a very serious situation, but before i put any more inference on that, i think it would be important to wait until we get this press conference hopefully here very shortly but that is certainly telegraphing some severity here. >> tom, let me come to you with this information that support from local, state, and federal agencies. you ar