and there may even have been a phone call between them. they want to try to identify her, talk to her, see what she knew. they don't know whether she was involved or not, but it's just something they have to run down. >> all right. we have to talk about the president for a moment because he is back in d.c. after visiting first responders and victims of the las vegas attack. nbc's ron allen has more on that. ron, there were people yesterday saying finally he was the consoler in chief. he went to vegas. he saw first responders. he met with people and that is the president we were hoping to see. but now he's back in d.c. with a chance to talk gun control. >> reporter: exactly, stephanie. there was no tossing paper towels at victims of a disaster here. the president was very comfortable here at a university hospital where he visited first responders and some of the other victims of this horrific attack. before i get to the president, let me show you what's been happening here. we're not far from the scene of