Festival grounds, still littered with debris and belongings of victims and those who fled the scene in panic. You can also look right into the snipers nest, where, throughout the day federal investigators , could be seen taking measurements in the window from which the gunmen opened fire. Room 135 on the 32nd floor. The president flew here today to meet with victims and first responders. Paddocks interviewed girlfriend today, as they searched for a motive for the attack. John blackstone begins our coverage. John this afternoon, Marilou Danley was questioned at the los angeles fbi field office. She returned voluntarily last night after visiting her native philippines. She came in a wheelchair and was met by federal agents. Authorities say she is key to piecing together what motivated paddock. In an interview with australian sisters said paddock himself sent her out of the country before he carried out the massacre. Lou can help. John they recovered a total of 47 firearms overall, 24 of them from his hotel room. Some seen here in these pictures. Joel snyder of the atf told Nora Odonnell that he had been stockpiling weapons for years. How many firearms were purchased in the last year . He purchased 33 firearms, the majority of them rifles. That did not set off an alarm to the atf . We are only it notified if there is multiple guns sold in one sale. John Police Body Cam footage show what the officers faced and how they tried to save civilians. The gunfire continued for more than nine minutes. Swat police swarmed attics suite at the mandalay bay. They found paddock dead of an apparent gunshot one. Paddock was a regular at the gun shop near his home in mesquite, nevada. He bought five guns here, including a bolt action rifle, three days before the shooting. I was having a moment and myself saying, i may have very well been the last person to shake hands with that man. John Marilou Danleys attorney say she had no idea he was planning the rampage. The thousands of dollars he wired to her in the philippines was meant for her to buy a home there. She thought paddock was planning on breaking up with her. Homeland Security Consultant has more now on the investigation. Fbi agents could be seen today sifting through the hotel suite Stephen Paddock used to rain bullets down on the crowd. Go that way, get out of here. Law enforcement is still searching for a motive. Fbi Deputy DirectorAndrew Mccabe spoke to cnbc. We dont have any immediately accessible thumbprints that would indicate the shooters ideology, motivation, or what compelled him to get there. In the last 36 hours fbi labs began processing Electronic Devices like cell phones and computers recovered during searches of his properties. I think it is the quieter and harder work we have to do now. In terms of identifying people who may have known him, seen him, crossed paths with him in the days and weeks leading up to the event. That is where we are focused right now. Investigators are also focused on paddocks Mental Health and whether something happened in october of 2016 that caused him to stockpile most of the 47 guns and rifles and his arsenal. Also of interest, whether he was considering targeting another large concert that took place in las vegas a week before the Country Music festival. They are shooting right at us everybody stay down. , mandy gomez is a former fbi agent. This person was looking for the best target opportunity, and it did not matter what crowd he was going to fire into. He was looking for the largest impact for this attack every investigators say patrick spend a lot of time gambling in the days before the attack, and more than a dozen currency transaction reports were filed to back that up. Anthony . Anthony thank you. We are back now a street level, as you can see. Across from the Festival Grounds where the shooting occurred. Police are just about to open the street, three days after the shooting. Nearly 50 people are still in Critical Condition tonight. The president met today with some of the injured and the doctors and nurses who saved their lives. Here is White House CorrespondentMajor Garrett. President trump landed in the shadow of the mandalay bay hotel. Center of ao the grieving city, he came to console. Pres. Trump it makes you proud to be an american when you see the job they have done. At University Medical center, the hospital that received 100 victims, the president thanked doctors and nurses. The president also toward the Las Vegas Police command center and hailed the bravery of officers and civilians that faced the terror head on. Pres. Trump in the depths of horror we will always find hope in the men and women who risk of their lives for ours. On behalf of the nation, the president offered a nation a promise the nation a promise. Pres. Trump we know that your sorrow feels endless. We stand together to help you carry your pain. You are not alone. We will never leave your side. Major garrett and he reflected how america endures. Pres. Trump in the darkest moments what shines most brightly is the goodness that thrives in the hearts of our people. Major garrett of the shooter the , president said his wires were screwed up. Pres. Trump he is a sick, demented man. Major garrett the president left as he arrived, with the crime scene never far away. Charlie we continue with Major Garrett of nbc news then katty kay of the bbc. There were cameras inside and outside the room to warn him. This is clearly as the fbi said an incredibly well thought out plan. But it is the question of motive that makes it different from other Mass Shootings that we have covered. Without that sense of motive it is hard to piece together who this guy was and why he did it. Charlie we conclude this evening with Harrison Ford, his new film is called blade runner 2049. Lie. Nt you are a cop. I am not here to take you in. All we need to know is that we are serving our customers, that we are telling stories that are important. Ion forcite peoples pass commonality. What i am looking for is an that the investment audience can see and feel. Feel their way through. Charlie Major Garrett, katty kay, and Harrison Ford when we continue. Charlie joining me from las vegas is merit Major Garrett, cbs news chief correspondent. And from bbc america, katty kay. Major tell us about what we , learned new today about this horrific tragedy. Major garrett i can tell you here in las vegas this is a , Community Still in a state of shock and trauma. The president s remarks were well crafted, all of the consoling words you would expect from a president at a moment of national tragedy. But i can tell you, having talked to both Police Officers and residents of las vegas as i have been here the better part of the day this community cannot even , absorb those moments and messages and consolation. So deep is the sense of shock and trauma after sunday night, leading into monday mornings events. I met a couple walking by our work space they were carrying a picture of a friend of theirs, a mother of three boys, shot and killed. They were so traumatized they couldnt describe their feeling about it. They just wanted to come by and meet media members and said we are grieving, we just want you to know. That sense is all around us here. I lived in las vegas from 1986 is all around here. I lived in las vegas from 1986 to i know a little bit 1998. About the community. I have friends here. This is a town built on hospitality and entertainment. Theres a sense in america that this isnt really a real place, that gamblers and high rollers come in and out of here, but nobody actually lives here. Well, 650,000 people live in las vegas. The greaterin county. This is a real community. And it has come together and locked arms because it is traumatized as never before. The president s visit was deeply appreciated. But the city will go through many, many stages of grief and reconciliation before the tragedy has run anywhere near its full course. Charlie have we learned anything from the killer, the gunman, the girlfriend, or companion that has come back from the philippines . Have we learned what she is telling people who have talked to her . Major no. Those interviews have just begun at the fbi headquarters in los angeles. There is a sense that she was unaware and not necessarily a participant. That is the general sense. But the fbi is going to probe all of those questions about her knowledge, foreknowledge, any sense she might have had about the inkling this shooter had to carry out this crime or any knowledge she might have that could shed light on a motive. Motive still remains the greatest mystery here. And also the conduct of the casino itself. This man was known as a frequent gambler. Some described him as a high roller. He brought in lots of luggage, serially, bit by bit. Is that normal procedure . Should those things have been scrutinized more carefully . Were they not, because he was a wellknown frequenter of the mandalay bay . Was it because he was a high roller and got special treatment . All these questions have yet to be asked or fully answered. They are part of the comprehensive investigation. Not just by the fbi, but the Las Vegas Police and those trying to get closer to the bottom of some of these unresolved questions. Charlie do we know anymore about this man . We know that his preparation was deep and well considered. As the major mentioned, he brought the guns in in a series of suitcases to bring them in. We know he planned it carefully. We know he probably expected to die. We have heard that some people suspect he sent his girlfriend back to the philippines because he did not want her to be here. What else have we learned . Katty this is one of the strangest things about this awful incident. Now we are three days after it and we dont have a sense of a motive. You have covered too many of these terrible events and usually by now we have a clearer picture of somebody who is troubled for one reason or another or had a motive for one reason or another. Never beve may something you are i would understand, but you can piece together the elements. There were things about paddock. Reportedly had a father that was abusive, head father had been arrested for bank robbery at some point. That he had been a big gambler, sent all of his money to the philippines, that he sent his companion away. Would any of those if somebody said this to you about somebody you met in passing, would you said, this would lead to me thinking this person is going to commit a mass shooting . We have not heard any one thing yet that makes us think, that is the red flag people should have or could have noticed. There just is not yet. Charlie everything about this is terrible. What is he thinking when he is just shooting down people that he does not know . He is taking innocent lives of people with no grievance against them at all. Seen when somebody thought they had been unfairly discriminated against and take it out on their boss. Here, these were people this man apparently did not know. They were at a concert that had nothing to do with him. And they are some distance from him. He is not seeing them eye to eye. You cannot have the angle when youre sniping at someone from that distance. Charlie why so many . John why so many, and why so many preparations . Cameras out there to warn him if somebody was on their way to the room. As the fbi said, it is a wellthoughtout plan. It is this motive that makes it different from other Mass Shootings that major has covered, i have covered, you have covered. Without that sense of motive, it is hard to piece together who this guy was and why he did it. Charlie major, youre in las vegas. Once again we hear remarkable stories of first responders, we have remarkable stories of people prepared to risk their lives to save their friend, their relative, their wife or husband. Heroic stories of people who put themselves in the line of fire trying to protect someone, some loved one. Major garrett as unimaginable as these numbers are, 58 murdered, the gunman himself the 59th fatality, more than 500 injured, those numbers are incomprehensible. As bad as they are it is so clear when you talk to the police, the people who were around, that situation could have been worse, if that is even imaginable. I cannot imagine more than 58 dead and 500 injured, but that was a genuine possibility. I talked to a las vegas starting getting ready to go to bed sunday night, when he got a call this was going on. He called his six compatriots in the crimestoppers division, said come down to the Police Station immediately. They all did. Weapons,their bulletproof vest got to , the scene as rapidly as they could. All of them knowing this was a live fire sniper situation and they rushed him home to the scene as rapidly and protected as they could. By the time they got here, the shooting had stopped so they began to secure the area and began transport of those who had been wounded. Civilians did the same thing. Everyone rushed to the scene, rushed to the face of this horror in the community to try to make it stop, first, and then deal with those many victims. It is that that stands in such stark and arresting contrast to whatever the motive was. We talked to profilers in the fbi and local police departments. There is a false comfort that comes with this idea well, here , is the motive for mass murder, lets be honest. There is no legitimate motive for mass murder. Whatever the underlying cause is, there is no motive, nothing that explains it. You can say those things, you can piece together they became a perverted rationale, but they know that what happened here was worse than anything we have ever seen in our country and lots of people, uniformed, nonuniformed, experienced, not experienced civilian alike,rushed to the scene and made it slightly better. Katty the only reason we think about this issue of motive and try to get into the idea of motive is, could that be part of what helps prevention of future attacks . You are right. Somebody that does it, the simple answer is, they are crazy. You and i wouldnt do it, other people we know wouldnt do it. You have to be crazy to shoot this many people that you do not know. But are there things we , could look for in society to say, this is a red flag, and we should be concerned . You can see the other red flag and other Mass Shootings. You cant really see it in this event. It makes the idea of preventing this, let alone security we do not want to live in a world where you monitor every suitcase it goes into a hotel. It is not a freedom we want to give up. You think, how do we prevented in the future . This issue of red flags, that is where it comes in. Charlie not only what the motive was, but how long ago did it begin to develop in his own mind . Lets turn to the politics major. The president was there yesterday in puerto rico with criticism there. Has he responded to the criticism . Major garrett not really. The president s actions seeming to be a little cavalier while he was tossing paper towels to people in dire need of not just paper towels food, water, medicine, electricity, workable roads, the basic fundamentals of life in puerto rico are not anywhere near being returned. The president grading himself very favorably, as he tends to do. Specifically after Hurricane Harvey and irma. Fema, he measured highly for the puerto rico response. Those on the ground are very skeptical and in some places critical of that. What other choice do they have than to accept the president brought and hope there is more en route . Puerto rico will be a longrunning test, not just for the president in terms of rebuilding the commonwealth, but also the mechanism to pay for the rebuilding of the commonwealth. The president made a rather significant blunder yesterday separate from his demeanor suggesting in an interview that the United States might wipe out the tens of billions of dollars of debt racked up by puerto rico. That required Mick Mulvaney to rush up this morning, saying, no, there will be no bailout for puerto rico. That influenced financial markets, made people curious about what the president meant and if puerto rico was going to get confusion, causing when the last thing they need is confusion. They need compassion and a workable federal system to rebuild. On that score, the president legitimately took criticism and it probably isnt over. Charlie there is also the issue of gun control. We have seen tragedy lead to calls for more gun control. Clearly, that will happen here, because this is the most worst mass killing ever. Will we have the same response . Is there some reason to believe this will be different . Katty very little. I covered new town after the 20 children sixyearolds were , killed in that school. There was a huge outpouring of grief and dismay in the country, because it was children. That didnt lead to changes in gun control. Here is the disconnect. As polls show the majority of americans and nra members supported extended background checks. But the president said it again, were not going to talk about it now raise the issue of gun , control. This is something very hard for people watching this event around the world to fathom. Even if you raise the issue of gun control after a shooting ase this, you are seen politicizing the situation rather than how can we seen as deal with this and , prevent it from happening again . The president s response has been textbook president ial response. He praised the first responders, called for unity. Today he said not going to talk about that now. When else is the time . One thing ive learned in america, it is not the time after the mass shooting or the time between Mass Shootings. It is difficult to address. If guncontrol didnt happen after newtown, its not going to happen after vegas. Charlie thank you for coming here. After the break, stay with us. Charlie Harrison Ford is here. Hi