it looked like somebody on the stage. we don't know who was performing, how many people were there. we don't really understand the venue yet and how this shooter might have had access to people, perhaps one would think an open air concert if they're shooting down from a hotel room. and, again, there is no confirmation whether there was one shooter or more shooters. and we certainly haven't heard about anyone being in custody. >> no, no, we haven't. and brian, as we talk to you, there had been an unconfirmed report of one suspect found dead in a room at mandalay bay. but, again, no confirmation of that. also, there was chatter of multiple sites with active shooters. no confirmation in that at all. and that is the problem in situations like this there is so little information. people are in shock. people are scared. they're worried. brian, brian heifner, thank you