It's been three weeks, and nobody can tell me. CAROLYN ROBINSON: Tonight on 20/20 ` the mysteries and conspiracy theories about Las Vegas. The shootings are over, but now the trauma and the unanswered questions are growing. With someone that evil, somebody had to have noticed something was off. Tonight ` five people who lived to tell and the five key questions keeping them up at night. That much firepower, that much ammunition ` somebody knows somethin'. To modify his room, to put cameras up and nobody notice is shocking to me. The ever-changing timeline ` With all the video cameras in that town, it should be a no-brainer. I just wanna know why the timeline's changed as much as it has, and it's just gone completely silent. Was there a second shooter? (RAPID GUNFIRE) MAN: Two shooters. Two shooters. The mysterious Marilou, the shooter's girlfriend, who says she knew nothing of the plot. It doesn't make sense. She had to have known something. What does the hotel know? You have a no-gun policy in your hotel, and a virtual armoury of weapons ends up on a 32nd-storey suite. And most of all, who was Stephen Paddock? And how did he go from professional gambler to mass murderer? Steve said, 'Bedroom, lounge room 'and gunroom.' Uh, gunroom? A deadly puzzle, but why don't all the pieces fit? What's insinuated in what you're saying is that people are wilfully concealing the truth. The plot thickens. (DRAMATIC, PERCUSSIVE THEME MUSIC) Copyright Able 2017 Kia ora. I'm Carolyn Robinson. Tonight on 20/20 ` we are revisiting last month's Las Vegas shooting that saw gunman Stephen Paddock murder 58 people and injure more than 500 others. Reporter Matt Gutman, who was in Las Vegas at the time of the shooting, talks to five people who lived through the attack and tries to answer some of the lingering questions, like ` why did Paddock open fire? And how did no one notice him? Hopefully the answers will bring some closure for the survivors and the families of the victims. MATT GUTMAN: This week in Vegas, it's been business as usual. Vegas! WOMEN: Vegas! The party is rocking into the night. But 15 miles from the glitz of the Strip, Russell Bleck is up and awake for a different reason. I have literally five nightmares a night ` I've counted. I can't break the cycle. Bleck and his fiancee, Breanna, are two of the many survivors of the mass shooting at the Route 91 Harvest Festival. Bleck famously captured some of it on his cell phone,... That's an AR. (RAPID GUNFIRE) ...and though the shooting stopped nearly four weeks ago, for him and so many others, the incident isn't over. I wake up from a nightmare and just run down this hallway. I'll just... run into this closet and shut the lights off and shut the door and put my body against it so no one can, kinda, come in and... His fiancee was too emotional to even speak with us. Took me two weeks, three weeks to be able to look at her. I mean, you just` the sheer fear, you know, in her face ` it's just like that's something you're never gonna forget. But Bleck is troubled by more than the visceral memories he has of that night. Like other survivors we spoke to, he's also disturbed by what he considers the lingering questions, the missing answers about what really happened. The question that troubles me the most is the timeline. I wanna know what happened. The official timeline has changed at least three times. It just doesn't make any sense, because these things are pretty basic. The word 'incompetence' has been brought forward, and I am... absolutely offended with that... characterisation. The New York Times came out with its own timeline. MAN: By forensically analysing these clips, we're able to draw perhaps the most complete picture to date of what happened. Remarkably, it took authorities some time to even figure out when Paddock first checked into the Mandalay Bay. Originally, it was on September 28th, and then it shifted to September 25th. MAN: He changes rooms, it sounds like. Did he decide, 'I want a room on a different floor?' Or for the different angle? That's entirely possible. But the centre of the timeline controversy revolves around this man, security officer Jesus Campos, who was shot by Paddock through his hotel suite door, but exactly when? In the first official version of events, Campos encounters Paddock at the end of his shooting, perhaps preventing further loss of life. Just reaffirm to you that Jesus Campos is a true hero. But that turned out not to be the case. It will ` I will just say ` outright odd to say someone's a hero, that he basically stopped the shooting when now it appears that's really not the case. Why is that so difficult to figure out? Version number two ` Campos is shot at 9.59pm,... a full six minutes before... the shooting spree began. It didn't make sense at the time, because, you know, if you're a gunman who has prepared for months, why would you wait six minutes after having your plans interrupted by a hotel security officer to then start firing on the crowd? Third and final version ` for now ` the police and the hotel say that Campos was shot at about the same time as the shooting unfolded. That New York Times video timeline provides some additional clues as to the possible timing. In the first burst, the gunman fires around 60 bullets of a 100-capacity magazine. (RAPID GUNFIRE) (SINGS INDISTINCTLY) There's a pause then of around 36 seconds. We do know that the hotel security officer is in the hallway in or around that time. Perhaps the gun jammed, or perhaps he used the remainder of that cartridge on the hotel security officer. Yet we still do not know if he was shot before or after Paddock first turned his guns on the crowd. Tonight 20/20 has what no one has heard before ` the voice of Campos reporting the shots that fateful night. (GUNSHOTS) (STATIC HUMS LOUDLY) But MGM did not tell ABC News the time that that call came through. I'm a bit baffled as to why we don't actually know, 'This is what happened.' There's also an interesting detail posed by The New York Times timeline. Paddock appears to initially fire just single shots. Listen. (GUNSHOT, MAN SINGS INDISTINCTLY) (GUNSHOT) Some theories are that he's checking his trajectory or that he's firing on fuel stores at the nearby airport. (SIRENS WAIL) The police response has also come under scrutiny. Authorities have said that two officers arrived on the 31st floor at 10.12pm, one floor below Paddocks, three minutes before the shooting stopped. Why are they on the 31st floor, not on the 32nd? When you have an active shooter or a threat somewhere in the hotel, you wanna block that off. Seal it off. Seal it off. Don't let that threat or that person ` in this case, Paddock ` get outside the 32nd floor. So that might've been what they were thinking ` come to the 31st floor and come up with their plan on how they were gonna come up to the 32nd floor. Finally, one of the most troubling questions ` why did it take nearly an hour for police to breach Paddock's door, which could've been plenty of time for him to perpetrate further violence? The reason that you wait is because the imminent threat has either stopped or temporarily stopped. He's not firing any more. So at that point, they were probably assembling more resources. 'Get the right tactical gear. Get the explosive entry equipment.' We still don't know why Paddock stopped firing, but for the first time, we hear what may be the shots that ended his life. We received another video that films that 12th burst of fire... (RAPID GUNFIRE) ...but also what appear to be two single rounds of fire about a minute afterwards. (GUNSHOT) MAN: ...and they asked us to, like... (GUNSHOT) You know, was he takin' one last shot at the door or outside? Aiming at somebody and then saying, 'Now it's my turn'? Perhaps one day it'll all make sense to Russell Bleck and the other survivors. And then I can hopefully get some rest. The experience has marked him for life, and while there's plenty of sorrow, there's also strength. I mean, it's a constant reminder, you know. I'm never forgetting what happened that day. When we come back, a new widow with her own burning question ` could the hotel have prevented the shooting? (SOMBRE MUSIC) That question and many more when 20/20 returns after this break. (DRAMATIC, PERCUSSIVE THEME MUSIC) (DRAMATIC, PERCUSSIVE THEME MUSIC) Welcome back. Tonight on 20/20 ` we're returning to Las Vegas in search for answers to the myriad of lingering questions about last month's massacre. 58 people were killed at the Route 91 Country Music Festival, among them, Sonny Melton from Tennessee. His wife, Heather, talks now to reporter Matt Gutman, and she asks why no one at the Mandalay Bay noticed gunman Stephen Paddock bringing his arsenal of weapons into that hotel room. WOMAN: I have dreams every night that I know Sonny has passed but he doesn't, and so he keeps showin' up everywhere, and I keep hoping that he doesn't realise that he actually has passed away so that he stays. MATT GUTMAN: Heather Melton, orthopaedic surgeon, and Sonny, a surgical nurse, were a love story that burned brightly from the moment they met. We were always holdin' hands anywhere we walked. When we fell asleep at night, we were holdin' hands. To celebrate their one-year anniversary, the couple decided to leave their home in Big Sandy, Tennessee to attend the Route 91 Harvest Festival in Las Vegas. (INDISTINCT SINGING) When gunfire erupted, Sonny immediately wrapped his arms around his wife to protect her. I felt the impact of the bullet in his body,... cos he was holding me,... and then we both went down at the same time. I just saw a lotta blood. (LOW, UNSETTLED MUSIC) You know, it's like, 'How can this be real?' But nearly a month later, reality is starting to settle in, Heather, still coming to grips with going it alone, is haunted by questions. The question troubles me the most is ` how did this man... get that arsenal into the hotel room and nobody notice? The hotel, the Mandalay Bay is owned by MGM Resorts International. When it comes to players in Las Vegas, MGM is a Goliath ` the largest employer and taxpayer in Nevada. In addition to the Mandalay Bay, the company owns 12 other hotels in this town, including... How big of a player is MGM in Las Vegas? Oh, the biggest. The biggest. If you were to call this a company town, MGM would be in charge of` they'd be the sheriff of the company town. But now the gambling behemoth is facing lawsuits, including one alleging the wrongful death of 28-year-old Andrea Castilla, who was shot in the head and killed during the attack. Andrea was there to celebrate her birthday. Her boyfriend was planning on proposing to her. Attorney Richard Bridgford filed the suit alleging negligence on MGM's part ` The reality is that... if these weapons were never transported into the hotel ` I don't care how nuts Paddock is ` nobody gets killed. If they don't have breakable glass on the windows,... nobody fires from the 32nd floor. If he isn't left undisturbed with his cache of weapons, this doesn't happen. MGM has declined to comment on the lawsuit. Paddock picked this hotel because he had VIP status. And being a VIP in Vegas can come with all sorts of perks. He knew he could move around; he knew he could get access to the service elevator, you know, where it would be much more discreet. He can run up, you know, place weapons, magazines, etc, ammo in his car, bring it up the service elevator, and it raises no red flags where the rest of us, we do that, they start questioning, 'Well, why do you wanna move? And what's the p...?' You know, there'd be a lot of questions. And remember those conflicting timelines? Afternoon. Whatever version of events is ultimately presented in court could determine if MGM is held legally liable. The timeline here's critical. Every minute, every 15 seconds could mean the difference in tens of millions, if not more, of dollars. Although MGM and the authorities now agree on the timeline ` that the security officer, Jesus Campos, was shot at about the same time as Paddock opened fire on the crowd ` that hasn't stopped questions from swirling about those initial inconsistencies. Almost two weeks after the shooting, someone who could possibly offer some clarity, Jesus Campos, decided to tell his story. He had multiple opportunities for interviews ` probably 50. David Hickey is the president of the Security, Police and Fire Professionals union. He was called in to help to prepare Campos for those media interviews,... He chose five that he was going to do, and he was looking forward to those. ...but just before he was about to go live on those national news shows, Campos changed his mind. We had a meeting, and somewhere during that process, that meeting,... Mr Campos and others... left the room, and the last word we had was that they were transporting him to a Quick Care facility. And after that, Campos seemed to vanish. The Mandalay Bay security guard shot during the Las Vegas massacre has mysteriously vanished. He was scheduled to talk to all the national networks last week. Campos' silence has fuelled much speculation about why he has not spoken publicly. Thank you both for being here. But then 17 days after the shooting, Campos, along with another hotel employee, appeared on The Ellen DeGeneres Show. As I was walkin' down, um,... I heard rapid fire. And... at first, I took cover. I felt a burnin' sensation. Campos told his story, but DeGeneres never asked him exactly when he was shot ` before or after Paddock opened fire on the crowd. You just want this to be over, so you're talking about it now, and then you're not gonna talk about it again. Campos' union rep says he has no idea how this interview came about. The Ellen Show wasn't the venue that we would've chosen, and it wasn't one of the five venues that Mr Campos and myself involved had actually lined up. So why would Campos choose to sit down with someone known more for her jokes than her hard-hitting questions? Could it have something to do with MGM? There are Ellen slot machines in casinos across the country now. (APPLAUSE) And you can find 'em at the Aria and all of the MGM properties on the Las Vegas Strip. But Campos' attorney told ABC News that it was his client who chose to appear on Ellen and that there were no outside constraints on his interview. And tonight Campos still cannot go home. He is now being put up at an undisclosed MGM property for what his lawyer says his own protection. This is the Vegas version of the Witness Protection Program, but it's their witness that they're protecting. It seems they wanna make sure that... he isn't out there... talking about the very sensitive timeline. You can understand why it might be a very good investment for them to... have him squirreled away. For Heather Melton, the answers, whenever they turn out to be, will do little to ease her pain. It'll never make sense to me. There's no justification for what happened, and it's just so senseless that I don't think you can ever get resolution in your mind. Coming up ` the man behind the massacre. What drove Stephen Paddock to carry out his deadly plot? Somebody knows somethin', and the plot thickens. So will we ever know what on earth motivated Stephen Paddock? Stay with us; we'll have more for you after this break. (DRAMATIC, PERCUSSIVE THEME MUSIC) (DRAMATIC, PERCUSSIVE THEME MUSIC) Welcome back to 20/20 and tonight's story ` a return to Las Vegas in search of answers. On October the 1st, gunman Stephen Paddock opened fire from his room on the 32nd floor of the Mandalay Bay hotel. He killed 58 people in the crowd, watching the Route 91 Harvest Country Music Festival, but more than a month later, we still know very little about Paddock and his motives. Report Brian Ross now takes up the story. (SOMBRE MUSIC) I can't sit and dwell, cos that's when it starts to kick in, the fear... or, you know, of it maybe happening again. BRIAN ROSS: Michael Greenfield was working as a stagehand that night. That sound just keeps ringin' in my head. (MUTED RAPID GUNFIRE) It's like a CD on loop. You just keep hearing that sound over and over again, and it's hard to go away. I don't wanna say that I'm gonna PTSD or anything, but there's a part of me that... (SIGHS, SOFTLY) 'that feels like I didn't do enough. (SIGHS) 'That gets me the most.' (SIGHS) He may look big and tough, but the 37-year-old Greenfield is devastated over what happened, still trying to understand how Stephen Paddock could kill so easily. I still wanna know more about Paddock and his motivation and... why. You know, why so many innocent people? (SOMBRE COUNTRY MUSIC) It's a question that authorities have not been able to answer so far ` just as Stephen Paddock would've liked it. MAN: He loved the mystery, because he was a mysterious guy. Former FBI profiler Brad Garrett, now an ABC News consultant, took us through the factors of Paddock's background that are now bein' examined ` a criminal father, an addiction to gambling, a fascination with guns,... a twisted loner tortured with delusions. Next week portions of Paddock's brain will be sent to doctors at Stanford University who will examine it for any brain disorders. There is a suggestion that in brains of very violent people, their brains are a little different. When you look at the profile of mass shooters, he doesn't seem to fit it, does he? No. He's an older guy, made a lotta money, successful at gambling, successful at real estate. People may not like him, but they probably respect him because of what he's done. But adding to the mystery, there were some people who did actually like him and did not think he was crazy. SHAKILY: He was good to me. He was kind. Lisa Crawford worked for Paddock when he owned an apartment complex in Texas. EMOTIONALLY: The man that I knew,... that I thought was my friend, that I thought was a friend of my family. I feel so much shame. I'm embarrassed. One thing that Paddock was not was part of ISIS,... even though the terror group tried to claim the 64-year-old multimillionaire was one of theirs. When that came out, I just actually laughed. He wouldn't care enough to join ISIS, cos he doesn't really care about anybody else but himself. Paddock's only real passion seems to have been gambling ` a high roller treated like a king by Nevada's casinos, obsessed with video poker, claiming he made millions at it. He gambled for 20-plus years... successfully. It's like a job to him. He did it mathematically. The night before the shooting, Paddock was in the exclusive high-stakes video poker area at the Mandalay Bay hotel. Playing into the early morning hours, he won several big jackpots. But court records show that six years earlier, Paddock did have one contentious encounter at a casino ` at the Cosmopolitan hotel, where surveillance cameras caught the moment when he slipped on the floor of the lobby. Paddock sued for damages, claiming he tore his hamstring, but the hotel lawyers say the surveillance video shows he was probably drunk, as he was, they say, when he showed up to testify. He was carrying a beer in a paper bag, wearing shorts, had very cheap flip-flops on, kind of unkempt-looking. In his testimony, Paddock said he suffered from anxiety, didn't like bein' out in the sun and was prescribed Valium. It was perhaps an early indication of what investigators now believe was Paddock's slow descent into madness. The combination of age, deterioration and the idea that he's just decided he's just mad at the world, that, 'I really want big-time attention,' and, boy, does he have it. Just as Paddock's father did in the 1960s, when he was one of the FBI's 10 most-wanted fugitives. Young Stephen was 7 years old when his father, Benjamin Hoskins Paddock, was arrested for bank robbery. What's similar between Paddock and his father? OK, antisocial personality, tends to be a manipulator, tends to get whatever they want, tends to blame everybody else for their issues. After being released from prison, the father opened a bingo parlour at Oregon, claiming it was part of a church, full of anger at local reporters. You guys don't print anything, you don't tell anything but lies; you have never been on my side. Forget it. One prominent theory now among law enforcement is that Paddock wanted to somehow outdo his criminal father. Is that part of it? Does he wanna be more famous than Benjamin? According to federal agents, on the day of the shooting, Paddock made five separate trips back and forth between his home in Mesquite and the Mandalay Bay hotel, 70 miles away, presumably shuttling his weapons, setting up his 32nd-floor sniper's nest. He left behind no social media footprint, no manifesto, no suicide note. The hard drives on his computers are missing. I think this is going to boil down to, 'I want attention, and I want to feel powerful.' And that's the motivation to kill all those people. I think that's` Well, that's the motivation for every mass shooter. So that's just sick. That's just sick. Tonight the body of Stephen Paddock is being held at a secret location. No funeral home has reportedly been willing to handle the arrangements for a man whose evil acts defy any satisfyin' explanation. Why? If any of his family members or his friends knew him so well,... why? Somebody knows somethin', and... the plot thickens. Next ` a first responder with his question ` was there a second shooter? That's a question that's been asked many times since the massacre. Stay with us as we try to find the answer. (DRAMATIC, PERCUSSIVE THEME MUSIC) MAN: Look around. As the Favourites come out, it begins. Working as the Dream team. Nice! Ah. The flirt. Classic! Cadbury Favourites. (DRAMATIC, PERCUSSIVE THEME MUSIC) Welcome back to 20/20. Tonight we are revisiting the Las Vegas shooting of October the 1st, and we're looking for answers to questions that still linger. The conspiracy theories continue to spread about the motivation of gunman Stephen Paddock, theories ranging from gunrunning to money laundering and the big one that's circulated since the night of the Mandalay Bay massacre ` did he act alone? Reporter Matt Gutman puts some of these theories to the test. MATT GUTMAN: At a firehouse in Tacoma, Washington, one of the many heroes of the Las Vegas tragedy isn't feeling very heroic. It's been hard. Sleep has been hardest. You lay down at night; you go to sleep, like anyone else does in this country, and usually, a minute or two into it, I'm right back in Las Vegas. When the shooting started, Dean McAuley instantly sprang into first-responder mode, stabilising this young victim and helping get her to a hospital,... WOMAN: You guys OK? I need a rig. MAN: You need... I need a rig; I need to get her transported. ...but today he's not looking for praise. What he really wants is an answer to his burning question from that night. My heart of hearts believes there is only one shooter, but the part of me that questions is ` was there more people involved? We've been trying repeatedly to get an interview with the Las Vegas sheriff, the FBI, the ATF ` anybody who could help put doubts about the investigation to rest. We've been calling and calling and calling for an appointment, but nobody will even answer. As we wait outside the sheriff's office, some public information officers bump into us. There are so many conspiracy theories; there are rumours; there are questions about the timeline. People are very curious about what's going on. Investigation's ongoing, and there is more some more information that they've obtained. However, it's not ready to be made public at this point. In the vacuum left by their silence, conspiracy theories have sprouted on the internet like a fungus. More and more people are questioning the official story. We have solid scientific proof that there were two shooters in Las Vegas firing into the crowd. Stephen Paddock was selling guns to the mafia. No matter how wild the speculation, it all begins with the suggestion that Stephen Paddock was not acting alone. The night of the shooting, you tweeted out multiple times... Yes. ...that there were multiple shooters. Yes. Yes, cos that's what I was getting direct from the police. Conservative radio host and columnist Wayne Root's tweets not only said there were multiple shooters but that it was definitely Muslim terrorism. Everyone thought 'Citywide terror, and who could pull it off except ISIS?' Only in the United States of America... Now, there is independent proof for that or any of Root's theories. He says that's because proof may have disappeared on that missing hard drive in Paddock's hotel room or in the strange break-in in Paddock's house after the shooting. How do you let it happen, if you're law enforcement? That's my million-dollar question. Right now the story doesn't add up; the story doesn't make sense. Take, for example, the story that Paddock made a fortune playing video poke. Is it a game that's easy to win and, I guess, to win large sums? Not to my knowledge. It's probably a pretty good game to play if you wanted to launder your money. The money-laundering conspiracy theory seems to go in line with the gunrunning conspiracy theory. Bethania Palma, who writes about conspiracy theories for the myth-busting website Snopes, said this theory that Paddock was really selling guns from that hotel room is part of a broad, overarching conspiracy known as the... Which is conspiracy jargon for an event that was manufactured by the government so the government has pretence to seize guns, and then the new world order can come in and take over. She says what may seem like crazy speculation comes mostly from social media, where people justify their tortured conclusions by stitching together snippets of real news. Do you think this was all accomplished on his own? They include Sherriff Joe Lombardo's own words at this press conference very early in the investigation. You gotta make the assumption he had to have some help at some point. The sheriff himself announced that there may have been a second person, so that alone helps perpetuate conspiracy theories and discussions about maybe a second shooter. And as cell phone videos surfaced, conspiracy theories about multiple gunmen only got worse. (GUNFIRE) MAN: Two shooters. Two shooters. MAN: Right there in that room. Do you think that just the way that the gunfire echoes in a town like this sort of disoriented people, making them think that the gunfire's coming from multiple directions at once? Oh, absolutely. Listen here. (RAPID GUNFIRE) (HIGHER-PITCHED RAPID GUNFIRE) There is an obvious sound change ` a deep burst followed by a sharper crackle sound. (SCREAMING, RAPID GUNFIRE) (HIGHER-PITCHED RAPID GUNFIRE) Many people on chat boards like Reddit were sold,... If you don't know what you're listening for, then, you know, it could be anything to the average person. ...but retired Newark police ballistics expert Luke Laterza disagrees. Right, you hear... (SCREAMING, RAPID GUNFIRE) ...gunfire. (HIGHER-PITCHED RAPID GUNFIRE) Then you hear a second set of gunfire, more pronounced set of gunfire. Remember, investigators say Paddock had many weapons. It's clearly two different firearms, but there's nothing here that's telling me that's two different shooters ` nothing. But it wasn't just sound; it was also the sight. MAN: Right there, baby. (RAPID GUNFIRE) Point-blank after 30 seconds. Internet sleuths claim this flickering light is muzzle flash coming from the fourth floor of the hotel, meaning there was another shooter lower down. It seems like it's coming from up there. (GUNFIRE) Oh (BLEEP). But that was very easy to debunk, because if you go out to Las Vegas, there was no other broken windows. But speculation persists that one man could not have done it all alone, especially an unassuming 64-year-old. That was one of the first questions that came up, was ` how does a guy of that size operate an automatic weapon for 10 minutes? It didn't really make sense. But by October 9th, Sherriff Lombardo's earlier vagueness had vanished. Now he was unequivocal. We have uncovered no evidence to show there was a second shooter. Nevertheless, the conspiracies live on,... Don't blame people for conspiracy theories when you're feeding it all by cutting off all access and shutting it down. ...and things have gotten ugly. Some survivors have been attacked online by conspirators who think they are actors part of a cover-up. Dean McAuley deplores that behaviour, and he is confident the professional investigators will do their jobs. Whatever the Feds come up with I'm sure will answer it. Coming up ` the woman closest to Paddock. What did Marilou Danley know? That is another key question. Marilou Danley was the shooter's girlfriend, and we'll find out how much she knew when we return. (DRAMATIC, PERCUSSIVE THEME MUSIC) (POIGNANT MUSIC) This is the very moment... Audrey understood that more than 20,000 Kiwis were paying the actual wholesale price of their power, but she was still paying whatever fixed price her power company felt like. (DRAMATIC, PERCUSSIVE THEME MUSIC) Welcome back to 20/20. Tonight we return to Las Vegas and the scene of the Mandalay Bay massacre of October the 1st. Since gunman Stephen Paddock murdered 58 people and wounded more than 500 at a music festival, conspiracy theories have sprouted up to fill the vacuum left by a lack of real information. At the centre of many of these theories if Paddock's girlfriend, Marilou Danley. She wasn't in Las Vegas that night; she wasn't even in the United States, and she's maintained that Paddock never spoke to her about his plans. However, she remains under suspicion. Here again ` Matt Gutman. (HUBBUB) WOMAN: No. Don't leave. Just stay down. My name is Lisa fine, and what I witnessed was the most horrific thing I've ever seen in my life. MAN: Run! Don't walk! It was a war zone, and I was certain that we were all going to die. MATT GUTMAN: Since the Las Vegas shooting, Lisa Fine is not fine at all. I was told by a doctor that I needed to just breathe and relax, because when I went in, my blood pressure was 165/110, and it'd been like that for weeks. Had to give me some medication and just kinda tell me to calm down and that I'm not in any danger any more. The personal trainer had been looking forward to the country-music concert. Decked out in her cowboy hat and boots, she was ready for a special weekend, but now she can't seem to shut down and recharge. She joins a long line of Vegas shooting survivors who suffer from sleepless nights,... It is harder to go day by day, especially at night. I don't sleep; I have not slept yet. During the day, I get distracted by some things. ...and Fine has a nagging question ` what does Stephen Paddock's girlfriend Marilou Danley know? The thing that really bothers me is the fact that his girlfriend says she did not know of any of this. That, to me, is shocking. We are interested in a companion, and her name is Marilou Danley. So exactly who is she? In a way, Danley was an international woman of mystery ` world traveller, gambler, high-roller casino hostess who had been living with Paddock since 2013 while he was amassing his arsenal. At first, authorities believed she could be in Las Vegas,... She is 'a' Asian female, approximately 4'11" ` 4 foot 11 ` a weight of... 111 pounds. We have not located her at this time. ...but they were surprised to learn that she was halfway around the world in the Philippines. We still consider her a person of interest, and we plan to engage her upon her return to the country. When she arrived back into the country two days after the shooting ` filmed by KNBC ` the FBI pulled Danley in for questioning, and the world wondered ` would she be able to shed any new light on Stephen Paddock's mindset? And perhaps more importantly, was she in any way involved in the Las Vegas massacre? They felt she represented one of the biggest possible keys to unlocking this whole mystery. She was the closest person to him. The very first thing you look at with a mass shooter is ` who are the significant people in his life? And in his case you can't find anybody but Marilou. Danley had been overseas in the Philippines for almost two weeks prior to the shooting. In an interview with Australia's Channel 7 News, her sisters say the trip was her boyfriend Stephen Paddock's idea. She didn't even know she's going to the Philippines until Steve said, 'Oh, Marilou, I found you a cheap ticket to the Philippines.' He sent her away... so that he can plan what he's planning without interruptions. While in the Philippines, Danley received a wire transfer of nearly $100,000 from Stephen Paddock. That money that she received in the Philippines is very concerning to me. That has me very unsettled. But Danley's family says she was surprised to get the money and believed Paddock, her boyfriend of 4 years, might be dumping her. She thought he was maybe going to break up with her, because he sent her away and sent her all these money, that that was a sign of a break-up, not a sign of all of this violence that was to come. Danley's brother, who lives outside Manila, spoke to his sister after the shooting. (SPEAKS FILIPINO) 'She told us, "Just relax. '"There's nothing for you to worry about. Our consciences are clear, so don't panic." 'That's what she told us. She said, "I'll fix this. You don't have to worry."' In a phone call to her brother, Marilou Danley says, you know, 'Don't panic. I'll fix this. We have nothin' to worry about.' What do you make of that? She probably told them everything she knew, recognising that she didn't know that much... Mm. ...and it was ultimately gonna resolve itself. That's probably what she meant when she talked to her brother. Back in the US, Danley's former stepdaughters were shocked when they saw her picture on the news. Marilou had been married to their father for more than 20 years prior to her relationship with Stephen Paddock. Marilou is a wonderful, wonderful person. She would have nothing to do with anything like this. Never would we ever... in our lives think... that she would in any way be affiliated with this ever. Yeah. Neighbours of Paddock and Danley say they were a bit of an odd couple. This lady that was livin' with him, she was more or less 'a' extrovert, and I thought he was really an introvert. The general consensus among those who knew them was that Marilou was the better half of the couple. Adam Le Fevre visited their Nevada home. It's not what I saw as a... loving, caring relationship. Marilou ` as I said, a lovely girl ` seemed very nervous and jittery around Steve. He would talk in a more of a condescending way at times. And Paddock would leave Danley at home while he went off to casinos. As far as what he was doin' day in and day out, what was in his mind, what was he thinking, I doubt if he shared much of that. Lisa Fine has her own assessment of Danley. I've been a girlfriend; I've been a wife, and it makes no sense that she wouldn't know. Investigators, at this stage, believe Danley neither played a part in nor had prior knowledge of Paddock's actions. Through her attorney, she said... READS: 'He never said anything to me... 'or took any action 'that I was aware of 'that I understood in any way 'to be a warning that something horrible like this was going to happen.' I just wanna know what happened. It will never make sense. It will never make sense to me. I feel like we all do want answers; we wanna know why. While the victims of the shooting wait for those answers, each has found a way to cope. Lexie. (WHISTLES) Russell Bleck has found some peace at home with a new friend. This is Lexie. She's my little service god. She can kinda sense when I'm stressed out. She'll wake me up from nightmares and stuff. She just kinda senses our emotions. For Mike Greenfield, music has become an outlet. I just try and keep movin'. I can't sit and dwell. The best counselling that I think I could give myself right now is talking to the ones that were there. We are a team; we're family. We witnessed something horrific. I saw the worst of humanity, but at that same exact time, I saw the best outta humanity. Like first responder Dean McAuley. We're all trying to heal, and we're tryin' to learn from this. I'm still a dad; I'm still a husband. I still got my husband duties and my dad duties. I'll be walkin' with my son, and I'll just zone out for 10, 15 seconds, thinkin' about that night. It's kinda hard for me to get over that hump right now. Counsellors say that rather than look for closure, establish a new normal. I think about Sonny all the time. (CHUCKLES GENTLY) What I've been trying to make myself do is the things... that I know he'd want me to continue to do. Within a few weeks, Heather will move into the house that she and Sonny had spent two years building,... Every colour choice, every cabinet choice, we both did together, and so this was our dream. ...and to keep Sonny close, she buried him in their backyard in his favourite Eric Church T-shirt. He loved that land; he loved the property. There wasn't any other place that I felt was more suitable to him. We spent a lotta time out on this deck, just kinda watchin' the sunset and... And she's planning one final tribute to her husband ` a tattoo with the words of the Eric Church song Why not Me, written in honour of the Las Vegas victims. And I will have a tattoo that says, 'Why you? And why not me?' I think it's a question that myself and probably every other survivor asks themselves all the time. ERIC CHURCH: # Why you? # And why not me? # And while the survivors still struggle to come to terms with the shooting, police are still unable to come up with a definitive motivation for Paddock's attack. Well, that's our show for tonight. Thank you for joining us. Kia ora. Nga mihi. (DRAMATIC, PERCUSSIVE THEME MUSIC)