their became this unwritten policy really in north america where if there ar shots fired because scott peterson went on trial for that if there are shots fired inside you go towards the shots fired, even if you're unclear where they're coming from, you go toward them because studies hav shown time and time again that that is the way you save lives. you have to go and neutralize the shooter because even seconds , you're talking about bullets flying very quickly and you're talking about lives goin down very quickly. >> it depends where any of the victims may be hit. if they were hit in a major blood vessel, that's for they can get significant internal hemorrhaging and actually lose blood fast enough that their brain and heart failed to get any more oxygen and they can die . if they got hit anywhere else where there's an opportunity to close off the bleeding and stop it while still preserving they keep vital organs, that buys yo time. at this point we have no idea who got shot and where, but presumably, anyone who's been injured has been tended to intake into the trauma center close by. >> and wan