Officials have now recovered 47 firearms from three different locations. Their belief is this was an arsenal built up over many years. Twenty of the guns in that hotel room were rigged. They had a bump stop. Well talk about why he wanted it to make these weapons fire even faster. Police say the killer set up cameras in his room. There was one in the hall way to monitor people coming maybe to try to interrupt his deadly plot. The motive for this senseless attack, however, still a mustry. The killers girlfriend is back in the u. S. She is being interviewed by the fbi. She is considered a person of interest. President trump is going to head here to las vegas in a few hours to meet victims and law enforcement. Jean, what do we know . Reporter brandnew details of planning, meticulous premeditation before the perpetrator committed so many crimes. You guys, get down go that way get out of here. Go that way. Gunshots coming from over here. Go that way Reporter Police releasing body camera video of the chaos that unfolded as shots rang out at an outdoor Country Music festival on sunday night. Go that way, go that way, go that way. Theyre shooting right at us, guys. Everybody, stay down. Stay down. wheres it at . It looks like its coming out off window. Reporter these officers desperately attempting to locate the shooter, while taking cover under a hail of bullets. Go back go back get back. Get back. Reporter this new video captures the concertgoers running in every direction as they were being fired upon. Police say the killer opened few for 9 to 11 minutes, firing dozens of rounds in rapid succession. Mandalay bay, 31st floor. I can hear the automatic weapon coming from one floor ahead, one floor above us. Be advised, it is automaticing fewer. Fully automatic fire from an elevated position. Take cover. Reporter these are pictures of the arsenal used to carry out the massacre. Atf said 47 firearms have been recovered from the hotel suite and two homes connected to the killer. Officials say 12 of the guns in his hotel room were rigged to fire like automatic weapons. Police say the killer took his own life after exchanges gunfire with police, his lifeless body surrounded by some of the weapons he used to shoot out the smashed out window behind this curtain. Police say this was awe meticulously planned attack. Authorities say the killer installed several hidden cameras, one inside the hotel suites peephole, and two others in the hall way, including one camera on a Hotel Service cart to monitor approaching threats. The killers motive remains a mystery. His girlfriend, marilou danley, named a person of interest, is being questioned by the fbi and back in the u. S. Returning from the philippines tuesday night, police say is she has been cooperating with law enforcement. Her two officers speaking to 7 network in australia insist she did not know what the killer was planning. He september is her away so he can plan what he was planning without interruptions. I thank him for sparing my sisters life, but there were 59 peoples lives. We do know the perpetrator of these crimes wired 100,000 to the philippines. We dont know when he did it. We dont know why he did it. Chris, more mystery. We are hearing there is cooperation between the philippine authorities and the u. S. , so hopefully we can get answers on that. Jean, thank you very much. Well check back with you in a little bit. Theres a lot of new information to discuss. Lets figure out how this helps to form the puzzle. We have analysts with us. Couldnt have better guests for this. Lets start with what we now know about the weaponry and then we will go to what we know about this choice of venue, why this guy may have picked it. It is not new to gun owners. It is a legal accessory. Bunk stock. It is the back part of the weapon. Lets talk about what this is. Because there is a lot of pushback yesterday that this was a modification to have it operate like an automatic weapon instead of a semiautomatic. There was push back, no, this isnt a big deal. This is people attack the gun culture. All of a sudden this has been thrust into our lexicon. Sit a workaround. Most people in law enforcement, military, are huge proponents of the Second Amendment. This isnt part of the Second Amendment. This works around and sir couple vents our law. To be clear, it is legal. The atf special agent in charge said technically its legal. Does it meet the spirit of the law, the fact that youre not mechanically modifying a weapon but you are putting an aftermarket product on that allows you to lay down chris, this is suppressive fire. Suppressive fire, just so you know at home, is hail of bullets that is not so much accurate but done so it creates risk for whoever your opponent is so they would rather stay point. It is not about being pinpoint. They will say its not really automatic. You still have to have your hand on the trigger. Whats the reality about what it did for this weapon . The United States took automatic weapon fire off their rifles and put on a threeshot burst. They found out the inaccuracy of soldiers in combat, they would pull the trurg, tigger, and youd the muzzle would pull up. Lets show the pictures. It is is new information just to give you a sense of the volume, the preparation. That is actually a bathtub we were showing you. You see them on the floor. It doesnt necessarily show chaos. He may have been cycling through weapons. Heat up when used that much. You run out of bullets no matter how extended the ammo is. We see them. We hear that he was wearing gloves. Why . The heat. The heat signature on the muzzle. He was doing everything he could to prepare himself. Lets bring in phil mudd on that point. Not being concerned about who you hit but how many and giving this monster the best chance of firing as many bullets and hitting as many people as possible. Phil, how does it figure for you . A couple things we need to think b. Lots look at the visible. We know he was familiar with vegas. We know he was a gambler. He didnt presumably know the victims. He knew that that event was going to happen and he chose that hotel to hit that event. A gambler goes down to the strip and shoots people up, i have to believe it is something that happened to him that happened when he was gambling. But i want to know what his Google Search was, when did he make the refbatiservation, was n his phone, did he survey beforehand, i want his visa card history to know whether he ever checked into that hotel before or another hotel, whether he was traveling at other venues to buy dinner. There is a whole picture around i think the authorities would have already known. The sheriff said yesterday within 48 hours we should have a bigger picture. They have this digital picture of his life that should clarify what he was doing and why he chose that venue, chris. Also, phil, it seems clear at this point that he did as much as he could to give himself the best opportunity to kill as many boom as possible. He picked an elevated vantage point. He rigged the weapons to spray as many many bullets as possible. He put the cameras outside and privacy sign to give himself as much time as possible. What did that fit into what his objective was . Obviously his objective, in my judgment, was to kill as many people as possible. We know he had explosive material in the car. That explosive material is commonly available. It is agricultural material. If you look on the internet, you can find ways to make that into a backpack bomb. He was thinking of other options to maximize victims. Options we have seen in suicide attacks in places like europe. Why pick this option . Why not a truck bomb or backpack bomb . I dont know why he chose this option instead of others that he appears to have been thinking about. Also, james, it does appear these weapons, according to the investigators so far, it wasnt about a pluck buy. That he had been building them up over time. You think thats a window into some really longrange plot or he was a gun enthusiast that turned into Something Else. Chris, its hard to tell at this juncture. The sheriff the first day, in the initial hours said make no doubt about it, this is going to be a protracted investigation. Youre going to have a timeline put together. Were going to know where this guy was probably awe week prior to that. The concert was announced back in february. Was that the grievance . That concert, the trigger event, or was it Something Else . The key here is motivation. We know there was a criminal act. We know that. Now we have to get into his mind and find out what motivated him to do that. Were there coconspirators . Was this a statement for some other political performance . Thats the professor in you. You have the thing that you did. Mens rea was your minds intent in doing it. In terms of the mens rea they are trying to do it with horrible success and they say this is terrorism. Not to you. Terrorism understands why someone was motivated to conduct app attack. It is not a mass murder of innocent civilians but people with a political event. For example, protesting wars overseas or what the American Government is doing in the United States. With dont know motivation. Say it was related to a gambling habit on the las vegas strip. That is potentially financial motivation. Say a family problem caused him to snap. Until we know motivation, until we know it was political, dont tell me its terrorism. That presumes i know why he did what he did. How about the money and the movement of the girlfriend, her sisters saying they believe she was sent away. How do those two components fit into your analyst i want to know what the timeline is. We know the timeline of the acquisition of the weapons. Presumably looking at things like his phone and email. We know the timeline of his communication with people, including his family and his girlfriend. If i look at his visa card, i should know things like when he acquired that hotel room. If i look at his laptop i might know when he started searching for things like concerts on the las vegas strip. If you put that three dimensionsal timeline with all the data in somebodys life and overlay the moment when he decided to accepted a lot of money to somebody he presumably loved we get a picture of when he started to make decisions and even why he might have started to make those decisions if you factor in the kind of things he was looking at on google. All right. Gentlemen, thank you very much. And it is shocking no matter what your politics are that to this point in our understanding this man was able to a mass this arsenal on over a number of years and modify them to make them so deadly. To this point we dont know that he broke any law in the set up to the planning of this. What he did is criminal, a monster, is obvious. Up next, we will honor the victims of the las vegas massacre. 58 innocent lives cut short in an in assistant. Stolen by a man and we dont know why. We will tell you their stories next. You can avoid extra calories trifrom cooking r. With too much butter and oil. Introducing new pam spray pump. With 1 gram of fat and ten calories per serving plus the superior nonstick you love. Hashtag omeletgoals new pam spray pump. Kevin, meet yourkeviner. Kevin Kevin Kevin KevinKevin Kevin Kevin kevin kevin trusted advice for life. Kevin, hows your mom . Life well planned. See what a Raymond JamesFinancial Advisor can do for you. Can i kick it . 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Ask your Healthcare Provider for the simple blood test. Its the only way to know for sure. Lets be clear, what this men did and why, they matter. They matter in terms of the investigation is, figuring out what this plot is about, might lead us to avenues of how to make this less likely the next time. But the big point of this, the reason were so connected to it are the lives that were lost. 58 people were stolen from this world by one man. Among those victims are beloved special ed teacher, a nurse who used his body to schild his wife, a single mother of three boys. Cnns sarah seidner is live in las vegas with more. We know there are so many who are still trying to find people here. Families have come, there is communication going o. What we know already is just heartbreaking. Reporter it is is, chris. We sat down with the family, three boys and her parents. Their mother was killed in this terrible massacre. At this point, they are all just feeling numb but they are all completely heartbroken that they will never be able to hold their mother again. Sunny and heather were newlyweds who loved going to concert. His name was sonny. He was literally sunshine. He was the most selfless person that i have ever met. Even until his last breath, he proved that. Reporter when the first shots rang out, sonny grabbed heather, pulled her to safety, he was shot in the back. He died saveing her life. He saved me before much this incident. He taught me what real love was. Reporter denise and Tony Burditis had been married 32 years. They were high school sweethearts. She died in his arms. They were on vacation from west virginia. They took this video in front of the tpft val stafestival stage the massacre. Assume going to miss her greatly. Her family is going to miss her greatly. Reporter shraolisa patterso a mother of three. She is remembered for her Infectious Energy and fierce love for her family. She was such an amazing person. She cared for so many people. She was so enthusiastic. She was literally the best mom and she was my best friend. Reporter christopher why bald searched in afghanistan. Those at crunch fitness said we lost a son, mentor, friend and he hero. He had been looking forward to this trip with his friends. I told him, no, i couldnt go. I went to the bathroom and came back and he showed me his phone. He said i bought you tickets and everything. Youre going. Reporter he tried desperately to save his friends life, holding adrian in his arms until he took his last breath. I went back, put his hat on. Waited on him. Yelled at him not to go. He was blankly stairi lly stagg reporter even though she didnt know him, she stayed with jordan, holding him and his hand. She delivered the news to his girlfriend who was separated from him in the melee. She broke down and said hes the love of my life. This cant be happening. I go, i promise you i will not leave him. Reporter lisa was a happy mother of three boasson joying the concert with coworkers, her family in disbelief. We know she had passed. We know there was no hope. That was the worst. Knowing that she had passed. Reporter her older sons didnt know how to process the pain. They literally hit a wall, their fists bearing the. You are so angry that happened. And youre so happy for the life that she had. Reporter you know, for every one of those numbers, 58 families, they are all going through this. And everyone grieving in their own way. That family there, the cox family, an incredible family trying to get through this. They said one of the things that was really, really difficult but important to them is to actually see her. They wanted to see her body. They needed that. They needed that to finalize this in their minds. They were unable to find her for hours because there was so much chaos, so many people who lost loved ones they went to the Coroners Office and were shown a picture and thats when it hit them this was real and their mother was gone. Chris. Sara, thank you very much. Appreciate the reporting. It is is important to remember, alyson, a lot of families are trying to connect a lot of people involved in this. 58 people lost their hraoeufgs. Over 500 injulives. Over 500 injured. They are in disarray, shock. When we those these faces, everyone had family, friends, a life, dreams. It is always in every one of these that we go to, one man took so much and took so many from this place. I mean, look, chris, the numbers are staggering, just staggering. Look at all the faces on our screen. Every single story that he with hear is crushing. All of these left without their mother or parents. Or somebody left without their husband, their loved ones. The scope of the human loss is so much that i think a lot of people are trying to compartmentalize it. Otherwise, it is so devastating. We will stepped the program talking about if people are feeling resigned to this or if theres anything that our leaders cancan do. So we are going to talk about all of that. Chris, we will be back with you very shortly. Meanwhile, President Trump is heading to las vegas in the next hour to meet with these victims and the heroes there. How will he address all of these questions . Does he see any answer here . A live report next. You nervous . Feel the power of thenew power. Smax. To fight back theraflus powerful new formula to defeat 7 cold and flu symptoms. Fast. So you can play on. Thera