In the massacre on the las vegas strip. The gunman opened fire from the 32nd floor of the Mandalay Bay Hotel on a crowd of some 22,000 people attending a concert. A short time ago the president responded to the worst mass shooting in modern history. It was an act of pure evil. The fbi and the department of Homeland Security are working closely with local authorities to assist with the investigation and they will provide updates as to the investigation and how it develops. The president ordered flags lowered to halfstaff in honor of the victims. He and the first lady plans to travel to las vegas on wednesday. Now to the latest on the shooting. Police have identified the shooter as 64yearold Stephen Paddock. He killed himself before police burst into the hotel room. They fountain arsenal of weapons including 10 rifles. They appear to have acted alone. The borage sent people running for their lives. The singer jason aldean had taken to the stage when the first shots rang out. [ gunshots ] we have more on the investigation right now. Dan simon is joining us live from the scene in las vegas. Update us on what you are hearing from authorities there. We are on the south end of the las vegas strip. You can see the Mandalay Bay Hotel behind me. What we know from authorities is that they are finished going through the hotel room and finish going through the 32nd floor. Right now the focus is on the venue attended the conference. They used a hammer like device to begin the rampage. The hotel staff had been through the room. He is talking about House Keeping staff and that they saw nothing a miss. In terms of a motive. He couldnt comment and he couldnt go through the mind of a psychopath. He couldnt understand what led to all of this. They have the grim task of removing all of bodies, wolf. Police think the gunmen acted alone and what about the woman they were looking for. She has been described as a person of interest. 62yearold marilou danley. They lived together in their house in mesquite, nevada. She was actually out of the country when this shooting occurred. Presumably headed back to the United States. Authorities want to interrogate her. They have made some contact with her and they ended up having a conversation with her and any clues as to what may have motivated the shooter to kill those 58 people. When you say she was out of the country, are they saying where she was outside of the United States . Reporter we heard australia. Thats unconfirmed, but thats what we know at this point. She is going to be headed back and police will sit down with her and have a lengthy conversation with her. Im sure they will. We will get back to you. The shooter lived in mesquite, nevada about 80 miles from las vegas. Authorities are not saying anything about a possible motive and we are learning more about the gunmans background who described his shock at hearing the news of this massacre. This is like an asteroid fell. He had no machine guns when i moved him from melbourne to mesquite. Find out who he bought the machine guns from. Once again, there is no blame. He bought the machine guns and he did this. It was him who did this. There is no doubt about it. He was him. Completely out of character . Hes never even drawn his gun. I mean it makes no sense. He never hit anybody. Gun enthusiast . He had a couple of hand guns i think. A safe with a couple of hand guns. He might have had one long rifle, but no automatic weapons that i knew of at any time. There is no it just makes no sense. I have a 90yearold mother whose son just killed 50 plus people and now is dead. Im a special agent with the fbi. Yeah. We will see you later. We will talk now. The fbi agent arrives and they went into the house. In mesquite, nevada outside the suspects home. Have police found as far as we know anything of substance over at that home . Reporter as far as we know, what they have found is just an average home. They are trying to put the pieces together to figure out exactly what may have motivated the Senior Citizen to unleash this sort of terror in las vegas. We have been able to piece together from relatives and people here in the community is that he did have a pilots license. A license that was no longer valid because of medical certification lapsed. He had a hunting license in alaska. He was an accountant. Didnt have children. He is divorced, but had a live in girlfriend. If there is anything that sticks out, his brother said their father at one point was a bank robber and at one point being on the fbis 10 most wanted list. Beyond that, the police say and you can see the barricade here, they are trying to block off traffic into the community. They are still going through that house. They havent found anything that stands out where they say this is why. At least anything they have been able to tell us and the community here saying they simply do not understand why a 64yearold man would do this. The police say they had no contact with this man. That is negative and notable. We havent run into too many people who had an active relationship with him. He appeared to pretty much stick to himself. Wolf . What else do we know about that other than it lapsed for medical reasons. He appeared to have two planes at one point, but he had this license. Its several years old, but because of that medical certification, because he didnt maintain that, the pilots license is no longer valid. His father you say was once on the fbis most wanted list . What else do we know about that . Thats perhaps the most striking thing out of all of this. We are starting to paint the profile of a very normal guy who came to this quiet community. A Retirement Community of 55 plus. You have to be 55 or older to live here. His father and brother said that his father at one point was a bank robber. He died several years ago according to the brother. He had made the fbis 10 most wanted list. Beyond these details, we dont have too much more. Out of everything we have been able to learn, thats the one thing that sticks out in this mans profile. The Washington Post reported he was an avid gambler as well as avid concert goer in las vegas. Im sure we will learn a lot more about Stephen Paddock in the hours to come. We will get back to you in mesquite, nevada. The las vegas area, hospitals are inundated in Southern Nevada. This is the only Level One Trauma Center in nevada. The spokes woman for the hospital and is joining us now. What can you tell us about the conditions of the patients at your facility . Good afternoon. We received 104 patients since last night when the shooting happened. 12 of the patients are still in Critical Condition this morning. Eight of them had to go straight back to the operating rooms. We have a stand alone Trauma Center here at umc meaning everything we need to care for critical patients is contained in our four walls. We are not moving patients around the hospital. They are contained to be cared for. Other patients drove themselves to the Emergency Department and were cared for in the Emergency Department while more critically injured were being cared for in the Trauma Center. If someone thinks a Family Member might be hospitalized, what should they do . Simply call our main line for now. 7023832000. They will make sure they get to the right team reuniting patients with families so that they no longer wait and worry and know how everybody is doing. I know you need people to donate blood. If people are in the vegas area want to donate blood, what should they do . Absolutely. We have donation banks across the street from umc to collect the donations. Our shelves are still fully stocked so there is not an issue right now, but trauma continues here in las vegas. The Trauma Center is still open and you will receive the normal as we call them traumas coming in. We want to make sure we are ready for the rest of the patients, the normal amount of patients we will see today. Absolutely people can donate blood. Have you had a crisis like this with 100 patients receiving emergency medical treatment at the same time . Wolf, the last time we had anything close was when a woman ran on to the las ves gas strip. We had 17 patients. 104 is overwhelming at first, but this is what the team is trained to do. They are trained to treat and stabilize mass casualties and mass amounts of patients. Thats what they did in no short order in the Early Morning hours. How is your staff holding up under these awful circumstances . Wolf, they are a great punch of people and the hearts and souls are in the work they do. It runs in their blood to take care of injured folks and those who need critical attention when those really lifesaving seconds count. What are the Major ConcernsGoing Forward . I think making sure our families are taken care of. We know the patients are taken care of in the icu units across the campus, but we want to make sure the families and the loved ones are taken care of and receiving care and information as timely as possible. Good luck to everyone at the University Medical center. The spokes woman for the universal Medical Center in las vegas. We want to get updates from you throughout the day. Thank you very much and once again, good luck. Our cnn Law Enforcement analyst is joining us right now. Cedric, walk us through this investigation. Where does it stand right now . Obviously very, very early in the process. Yes, it still is very early. What is going to be significantly important in this investigation is you have a huge crime scene there in las vegas. In addition that as well, there will be collecting of Video Evidence as possible. Even though the subject has been identified and expired at the scene, some of the more basic questions of course is we want to be certain he was acting alone. Anybody who knew about this, took part in the planning in any way, the police there both at the state and federal and local level want to make sure they pursue anyone involved. If there were others involved, the critical question here of course is going to be what was the motive . What was the reasoning behind such a tragic and horrific act . According to police in list vegas, 10 rifles in that room on the 32nd floor of the mandalay day hotel and broke a window with something akin to a hammer in order to start shooting. So many people were saying it was automatic fire. The guns or at least some of the weapons were automatic. Where does he get that kind of stuff . What it says to me, this is not something he probably did on a whim. This was something probably very well planned and had been planning it for sometime. He certainly came with a type of armory he had in his possession to be there for a lengthy period of time and create a lot of havoc, which he did. Clearly this is something that just did not happen in the spur of the moment and what will be interesting is to determine how he got that much weaponry inside of that hotel without it being noticed. Its not impossible to do, but certainly i think something we all can learn from this event. Something like this is very, very hard to train and prepare for when you have a subject that takes himself to such a high elevation and target people who are totally innocent. 22,000 people approximately that were there inside that event who were just totally helpless. It is horrific to think about. What do you need to legal he purchase automatic rifles here in the United States. A lot of our viewers are watching right now and anxious to get an answer to that. Well, i think thats really a question that is a great question for atf in our country. There are certain states that will allow for automatic weaponry. You have to have a special permit from atf that is allowable in some states. I dont want to speak with a sense of being exact about that, but it could be. Whats important here to note is that he was firing automatic gunfire. That was repetitive. Commonly lay people will refer to as machine gunfire. You can tell by the video sound that we all have heard that there is no way anyone can pull a trigger that fast with such a high volume of bullets that are being expended from those assault weapons. Its very scare. This is what we have to live with today. It is certainly going to create a great deal of question in the Public Safety community as to how we get in front of events such as this. In addition, what is going to be important. And thats the only thing that could have prevented this. You hear the automatic gunfire and it sounds like a battlefield in iraq or somewhere else. Afghanistan. As opposed to being on the las vegas strip. We will get back to you. The Law Enforcement analyst. We are getting new details just in about the scene including the timeline and the gunmans location on the 32nd floor of the hotel. We are piecing it all together. I will speak live with a husband and wife separated during the chaos. You will hear their very emotional story of how they were reunited. Another eyewitness joins us on when he realized the horror was real after thinking it was just fireworks. This is cnns special live coverage of the massacre in las veg vegas. [woman 1] huh. Cant find my debit card. [woman 2] oh no. [woman 1] oh, its fine. [woman 2] yeah, totally. Its fine. But like. Is it fine though . Because, i would maybe be worried. Really, really, really worried. Uh. Do you want me to go back and look for it . I will. I mean a lot of bad things could happen. 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Gum brand for healthy gums. Soft picks, proxabrush cleaners, flossers. Gum brand. The deadliest mass shooting in u. S. History just happened. There was a shooting at the jason aldean concert in las vegas. Another round of bullets. Another round of bullets. The shots just get people are hiding under everywhere. The bleachers and everywhere they could. Everyone is saying to run as fast as you can. You can see a guy with a bullet wound in his neck motionless. From then on in, people were dropping like flies. You are in the middle of a field. There is nowhere to run and hide. This was a committed shooter. I feared that the body count is going to rise. This is not what america is built on. We are stronger than this. You are watching breaking news of the massacre in las vegas. At least 58 people are dead. More than 500 are injured. Police say the gunman, 64yearold Stephen Paddock opened fire from the 32nd floor of the Mandalay Bay Hotel in las vegas. Tom foreman, walk us through how this unimaginable tragedy unfolded. If you are familiar with las vegas running through here. The area where this concert was occurring is right in here. I want you to note a couple of things. The stage is down here. The shooter was over here on mandalay bay somewhere in this area shooting across the strip to hit the people in the concert. To give you a better view of this. Lets give you the range. From where he was shooting, some of these shots would have been in the neighborhood of 300 to 400 yards. The type of ammunition is not necessarily well suited to that range of shooting if you are looking for extreme accuracy, but thats not necessarily what people were looking for. Heres another way of looking at it. This ariel shot would approximate the view he had. This is where the concerts were. They are in an open area with the stage right over here. You can see how people would be sort of packed into the forward area of it. It doesnt have to be an accurate shooter if they are laying a great volume of shots into this area. I listen to the bursts, somewhere between 7 and 10 seconds and there is a pause and then they come back in. That would be consistent with an automatic weapon. Another part of the geography, if this is president his viewpoint as he was shooting into this densely packed crowd, this is the main entrance and exit where many people tried to go out. They were coming towards the gunfire when they exited. Why would that happen . People typically in almost all situations want to go towards the way they came in and also look at the crowd. People were looking around because they were not thinking. When the shot comes around to the right, you can easily see right there, this is where the shots are coming from. People are looking around because they dont know. As they stay in that spot, they were staying exposed to the fire as much as all of them wanted to be out of it. Heart breaking. Good explanation. Thanks very much. Megan was an eyewitness to the shooting. Tell us where you were and what you saw. Yes, it was about 10 00 and i had just gotten out of a private event at the fountain room in the Mandalay Bay Hotel on the 54th floor. There were many different rooms and one big bar that overlooked out to the strip. Around 10 00, one of my girlfriends and i went out to take pictures and there was about 10 or 15 people out there when i stepped out. I heard this nonstop fires. Machine gun. In my gut i was like that doesnt sound normal. It was delayed reaction and im taking pictures and i stop and hear it again. Then it was just happening t