Stage. And america strong tonight. The surprise hiding in this bumble bee costume. The two boys who had no idea their dad, an army soldier, had come home. Good evening and we begin tonight with breaking news. The state of emergency just declared as we come on. Massive wildfires exploding in size and now much of this country, 19 states, bracing for tripledigit heat this weekend, all the way to the east coast. But in the west at this hour, this fire burning out of control in Santa Barbara, nearly quadrupling in size. Hundreds of families have been told to get out. More than 1,200 firefighters battling the flames. And you can see there on the left, some forced to take cover behind their truck as the fire began to jump the road. Meantime, as we head into the weekend heat alerts up already, stretching across many states. Tripledigit heat reaches 120 degrees. Where will it hit and when . First, abcs jim avila is on the scene where evacuations are under way. Reporter tonight, mandatory evacuations for hundreds as high winds and bone dry brush fueled the Santa Barbara county fire. Burning to nearly four times its previous size in just 24 hours. This water cistern surrounded by firefighters into the night, destroyed by morning. A declaration of emergency bringing out hundreds of hand crews, air tankers, including converted passenger jets. Thats a dc10. Helicopters and hot shot specialists on the ground. Its not just california. Parts of the west could see their highest alltime temperatures by monday. In all, parts of 19 states, more than 70 million americans, under sweltering heat advisories. Hydration essential. In memphis the heat index, 119. And in houston, tragedy. A 3yearold boy slipped unnoticed into the family car parked at his house, dying of heat exposure. Neighbor Marlene Gonzalez witnessed the anguish. Heartbreaking because i have three kids of my own, and when i seen it, it was sad. Reporter in the east, powerful storms along the midatlantic knocking out power to thousands. David, the 1,200 firefighters working the lines on this blaze are beginning to get the upper hand, but the temperatures are still soaring. David . Jim avila leading us off tonight. Jim, thank you. As we said at the top, the heat will be felt coast to coast. Lets get right to meteorologist rob marciano live outside tonight. Good evening. Good evening. Its only going to get hotter especially out west, continued dry. And the winds will pick up. Not good for the fire situation there. And if you work outside, look at these numbers. Hydration is key. Temperatures getting up and over 100 east of l. A. 120 plus in palm springs. That is alltime record stuff. In the plains, not as hot but humid. Again, going to feel like over 100 degrees in dallas. Some of this feeding into severe storms tonight across the deep south. These watch boxes up in the next couple hours. 70mileperhour winds with the storms. Be aware of that. If you live in the hot zone, this weekend, certainly keep that water bottle handy. David . Great advice, thank you. We move to major new developments in the meantime in the terror in orlando. Abc news has learned the fbi has now obtained Surveillance Video from inside the orlando night club. Multiple cameras, chilling scenes. They have not released the video. But sources are describing what they have seen. The gunman moving from room to room. Abcs senior justice correspondent Pierre Thomas with what hes just learned. Reporter these chilling images, people struggling to survive the onslaught at the pulse nightclub, huddled together in the dark on the bathroom floor. Stay with me, okay . Reporter but tonight we learn the fbi has obtained high quality security video, which captures the massacre in horrific detail. Surveillance cameras showing multiple angles in different rooms, from the patio to the dance floor to the lounge, previously, the only glimpse we had of the massacre, this moment, Amanda Alvear recording those first gunshots. Her last moments alive. In the Surveillance Video, sources say, you can see the killer firing his Assault Rifle and systematically executing victims. One source familiar with the investigation tells abc news the video shows omar mateen walking through the rooms, mowing people down, cold blooded. A relentless assassin, reloading his weapon more than once. David, this video is critical because it gives a precise time line and shows so much of what actually happened. Again just tragic. David. Pierre, thank you. We are also learning more this evening about omar mateen and the laser focus this evening on his wife. We have also learned the gunman signed over his interest on a home he coowned with his father, just two months before the massacre, taking his name off the title for a mere 100. Sources also telling abc news that mateen and his wife exchanged Text Messages during the rampage. Abcs chief investigative correspondent brian ross. Reporter her family tonight says omar mateens wife noor became a stranger to them once she got married. They say she is now telling them mateen beat her, just as his first wife, sitora, says she was treated. He wouldnt allow me to speak to my family. He would beat me as i tried to call them. Reporter and now the fbi is investigating whether mateens current wife was somehow involved in or knew about the attack. Recovering a brief text message they exchanged as it was happening, as she was apparently unaware of where he was. Did you see the news, he asked. And then messages between the two, i love you. Every mass murder is premeditated. She lived with him. She knows something. Reporter one of the many questions she can answer, why just two months ago mateen signed over his interest in a home he coowned with his father, for a mere 100. Noor was one of the witnesses. And investigators want to know what she knew about the emerging contradictions of mateens life, his secret life. As he filled out his application for a Police Academy just last year, mateen wrote that his parents told him to appreciate the blessings of being raised in a safe country and society. I want to pursue a career in public safety. I want the streets to be safe for my son, the way it was safe for me growing up. And brian, back with us tonight. It was last night here, you reported on the Florida Gun Store that said it called the fbi weeks ago about a suspicious man that they now believe was omar mateen. The fbi responding to that tonight saying they did get back to the store. The owner claimed they never checked in. But the fbi strongly disputes the store owners account. But they did go to the store but there was not enough information to conduct what they call any meaningful investigative followup. Two different accounts of the story. Thank you. There are also new developments after the deadly alligator attack at disney world. The autopsy results revealed more about the death of 2yearold lane graves today. Disney keeping its beaches closed and today installing temporary barriers and new signs going up, warning of alligators. Abcs gio benitez is in orlando. Reporter tonight, barriers going up at disneys grand floridian resort. Workers blocking access to the same beach where 2yearold lane graves was killed by an alligator. Disney now saying, we are installing signage and temporary barriers at our resort beach locations and are working on permanent, longterm solutions at our beaches. We are reinforcing training with our cast for reporting sightings and interactions with wildlife and are expanding our communication to guests on this topic. And our first look at those signs guests will see, warning of alligators. Autopsy results show little lane died of drowning and traumatic injury, after he was grabbed by an alligator in ankledeep water. The animals can lunge at 20 to 30 miles per hour. In the blink of an eye that gators from the water to its prey grabbing it and pulling it back in. I mean, in just tenths of a seconds. Reporter and experts warn tonight that tourists feeding alligators can make them more aggressive toward other guests at the resort. As a matter of fact, in the state of florida, its against the law to feed wild alligators. Because they are very easily trained. Its not as Common Knowledge but alligators can be trained to come to food. Reporter tonight back in nebraska, family and friends of the Graves Family offering support with prayers and blue ribbons. As a neighborhood we hope they just feel the love basically, of how much we care about them. Reporter tonight, im told disney will be putting up the alligator warning signs. Around the rest of the property very soon. Theyre still trying to decide if theyll ever open those beaches again. David . Thank you. There are new terms for the race for president tonight in this week as the country comes together for the victims of the orlando terror. Donald trump now declaring he would be better than Hillary Clinton when it comes to supporting the lbgt community. Abcs Jonathan Karl tonight with Hillary Clintons one word response. And trump suggesting he would pick oprah as a vp. If he ran. So what is she saying tonight now that he is running . Reporter in the wake of the massacre, donald trump is portraying himself as a staunch supporter of lesbian, gay, bisexual and transgender people. Lgbt is starting to like donald trump very much lately. I will tell you. Reporter he says he is a stronger ally to the Gay Community than Hillary Clinton because the Clinton Foundation has taken millions of dollars in donations from countries like saudi arabia, a country that prosecutes gays. Saudi arabia, they throw gays off buildings. Countries that contribute to her foundations. Reporter trump says he could take on antigay terrorists. Hillary clinton retweeting a quote of trumps, you tell me who is better for the Gay Community and who is better for women than donald trump . Hillary clinton responding, hi. Oprah would be great. Reporter he may have been joking. Jimmy kimmel asked him about it. He would like to you be his running mate. I think he was joking about that. I dont think he was joking. I think he was. But okay. Has he contacted you . Have not gotten the call. If he did make the call, would you take the call . I would say, donald, im with her. Oh, i see. [ cheers and applause ] reporter what about oprah for president. For many years, i used to think, until this election year, i thought, why do people say that . I have no qualifications to run. Im feeling pretty qualified. Reporter when it comes to gay rights, its Hillary Clinton who supports gay marriage, not donald trump. Even so, there is little doubt, david, that trump is the most pro gay rights republican candidate we have ever seen. Jon karl with us tonight, thanks, jon. Overseas and the history making ruling concerning russia and the olympics. The entire russia track and field team barred today from competing in the summer games in rio because of a widespread doping scandal. President putin calling it unjust and unfair. How many medals did russia win over the Americans Last time . Here is abcs matt gutman. Reporter tonight, for the first time in olympic history, a countrys entire track and field team has been banned from the summer games. In a stunning rebuke of russia for its ongoing doping scandal, the world governing body for athletics, the iaaf, voted to ban all russian track and field athletes. Finally, we have an International Sports federation that is just saying enough. You cannot cheat and get away with it. Reporter in a blistering 300page report released last fall, the World Antidoping Agency found that russia committed 225 violations, the highest in the world. This is just a confirmation of russias demise as a world power in sports. Reporter russia denies it engages in systemic doping. This is a big hit for the russians who won 18 medals in track and field at the london games. Two of those medals were stripped from its dominant womens 800 meters team in london last year. Too late for runner alysia montano. Is it possible to rid the sport of cheating and doping . I hope so. I hope this is a lesson to the athletes that choose to do wrong and to steal from other athletes that are doing it right. Reporter david, that track and field body says russia even refuses to accept it has a doping problem. Case in point, one russian sprinter we spoke to says she didnt understand why all athletes arent allowed to dope. David . Matt gutman, thank you. The famous singer collapsing on stage. Falling to the ground in the middle of a packed concert performance. Fans were stunned as a team rushed to the stage. We have much more on this. Also, this explosive moment inside this walmart. What ignited an entire aisle. And america strong tonight. We needed this story this week. A fathers day surprise. Inside the bumble bee, they hadnt seen their father in months. Hes home. Well be right back. We asked a group of young people when they thought they should start saving for retirement. Then we asked some older people when they actually did start saving. 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The famous singer meat loaf collapsing to the stage in the middle of a song. Tonight, what the singers team is saying may have caused the collapse. Here is abcs eva pilgrim. Reporter scary moments on stage before a packed crowd in canada. Singer meatloaf belting out an encore of his hit i would do anything for love when he stops singing. Fans capturing the moment the 68yearold drops the microphone and falls to the ground. You always fear the worst when you see Something Like that. Reporter some in the crowd confused. One posting, im not sure if meatloaf is acting or if he actually collapsed on stage. Other fans saying later there were warning signs. The whole concert he was shaking. He barely sang. Reporter today a statement on his Facebook Page blaming severe dehydration, saying the singer is expecting a speedy and full recovery. David, meat loaf canceled two shows in the last week due to illness. Tonight, he is out of the hospital and planning to reschedule those shows, david. Glad to hear he is recovering. All right, evan, thanks. When we come back, the voice contestant killed in orlando one week ago, remembered tonight. Also, look at this frightening scene in this walmart. What ignited an entire aisle . They are searching who did this. And millions watching this dangerous moment on a soccer field today. Well be right back. With my moderate to severe ulcerative colitis, the possibility of a flare was almost always on my mind. Thinking about what to avoid, where to go. And how to deal with my uc. To me, that was normal. Until i talked to my doctor. She told me that humira helps people like me get uc under control and keep it under control when certain medications havent worked well enough. Humira can lower your ability to fight infections, including tuberculosis. 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