Tonight. Good evening and thank you for joining us on this saturday. Im cecilia vega. We begin with that heroic moment on a high speed train, two american servicemen and their friend on vacation in france praised for stopping what could have been a mass killing. Tonight this video inside that train. Theres the attacker tied up. Those americans beating him with his own rifle. One of them seriously hurt in the takedown, and we are learning more about these heros, their quick decision to act. Today president obama calling each of them to thank them for their courage. Abcs Ron Claiborne leads us off. Reporter Spencer Stone waved as he left the French Hospital tonight where he had been treated for cuts to his neck and hand sustained in a furious struggle with the heavily armed suspect on that high speed train. This video showing the dramatic scene on the train. Stone, shirtless and bleeding, tending to another passenger. His attacker, the gunman, tied up a few feet away, not moving. On a nearby seat, the gunmans automatic weapon. Authorities say those three americans and a british man took down the suspect after he shot another passenger, almost certainly they prevented a massacre. The two unwounded americans praising their friends quick actions. Spencer ran a good ten meters to get to the guy, and we didnt know that his gun wasnt working or anything like that. Spencer just ran anyway. Im really proud of my friend that he just reacted so quickly and so bravely. Reporter the suspect was identified as ayoub el khazzani. A 26yearold native of more oak co. French Authorities Say he may have belonged to a radical islamic movement. On board the train authorities found an ak47, a handgun, a box cutter and ammunition. Were very lucky that nobody got killed, especially spencer. Reporter president obama today praising the three americans. Stone, National Guardsman alex scar lot toes who was returning from duty in afghanistan, and their civilian friend, anthony sadler. Tonight stone just out of the hospital is expected to be reunited with his fellow heros. Tonight el khazzani is in french custody. Hes undergoing interrogation. He lived in belgium and was known to authorities. Investigators there and in france are trying to determine where he got the weapons, all those weapons he had on that train, and what he planned to do with them. What those servicemen did was totally remarkable. Good to see you tonight. Next to a devastating accident at an air show. Thousands of people watching it all in horror. It happened over these fields in england. A military jet beginning this high flying stunt but then the jet slamming into a busy road. Abcs Jennifer Eccleston from london tonight. Reporter the pilot at this air show attempting a routine loop when suddenly the jet starts to plummet. Onlookers horrified as it goes down, crashing into a busy road. Theres nothing we can do except stay where we are. And keep clear. Reporter a cloud of smoke engulfing the area. Enjoyment turning to horror for thousands of spectators in west sussex south of london. It just plowed straight into the road and the trees over the way there. Reporter the casualties, at least 7 dead and 15 injured. All of the dead on the road near the air show. I swerved off the road and literally just across the other side of the road it just went up in flames. Reporter the plane that crashed, a 1950s military jet. Critically ill and fighting for his life. In this case, it was either a mechanical problem or the pilot failed to have enough altitude as he came down. Reporter ambulances and helicopters lining up to evacuate the dead and wounded. Its too soon to say what brought down the vintage jet, but investigators will be combing the wreckage, searching for clues as to why this popular family event turned so tragic. Cecilia . A lot of questions. Jennifer, thank you. Now to the race for the white house. Donald trump ever the showman, the republican frontrunner filling a football stadium in alabama. The crowd count, now official, trump drew more supporters than any candidate so far this season. Abcs tom llamas was right there and he reports in from mobile tonight. Sweet home alabama reporter taking the stage to the sound of sweet home alabama, donald trump wasted no time giving that recordsetting crowd what they waited hours to see. We have politicians that dont have a clue. Theyre all talk. Theyre no action. Reporter singling out fellow republican jeb bush on education. First thing that happens, like i said, your schools go to hell. Reporter and on immigration. Very weak on immigration, wants to let people come in. Reporter bush heading to the border on monday and not letting trump be the only voice friday night, sending this video to voters in the state. I cut taxes every year. Hes proposed the largest tax increase in mankinds history. Reporter trump also taking a shot at Hillary Clinton over the investigation into her private email account. Some bad things came out today. You know those classified, you know the word classified. Reporter playing to the crowd in mobile. As much as i love the art of the deal, its not even close. We take the bible all the way, right . Reporter trumps rhetoric striking a chord here. Police estimating 30,000 showed up to this rally, the largest event so far this election season. Hes honest and we need a businessman to finally run the United States instead of a politician. Reporter trump backers showing their support wearing donald wigs and trump himself showing off that famous hair. You know if it rains ill take off my hat and ill prove ill prove ill prove once and for all that its mine, okay . Reporter that bush trump battle may roll into next week with bush on the border in texas on monday and trump in iowa on tuesday. Cecilia . Tom, thanks. Well see you back here tomorrow night. Now to Hillary Clinton, word tonight that she plans to hit the campaign trail again where she is sure to face more tough questions about those emails. Abcs devin dwyer joins us from the white house. Devin, clinton was supposed to be on vacation. Reporter thats right, cecilia. Hillary clinton planned to spend the end of august relaxing at her exclusive Vacation Rental in the hamptons but her campaign tells me tonight shell barely with there next week. Shes hitting the trail for Campaign Events in key battleground states. This as that email controversy swirls. Her aids though insisted shes made no schedule adjustments because of it. That controversy not letting up and its starting to show in her poll numbers. Reporter look at the cnn poll from this week. 56 percent say mrs. Clinton did something wrong with her email. Thats up from 51 in march. Its troubling to the clinton campaign. Also a possible opening for vicepresident joe biden. Biden interrupting his vacation in delaware for a secret trip to washington for a private political meeting. Hes getting serious. Devin, thank you. Next tonight, the desperate battle against raging wildfires, one of the fires burning in people out of their homes. More than 70 major wildfires the northwest hit especially hard and that is where they are asking for all the help they can get. Abcs Kendis Gibson reports in from that area. Reporter tonight, crews battling the massive wildfires washington, finally getting reinforcement. This is our practice fire shelter. Reporter up to 3,000 citizen volunteers answering the unprecedented call for help, training today, on the front lines tomorrow. If they call for volunteers and he can help in any way, well be here. Reporter the okanogan complex fires in Central Washington scorching more than 227,000 acres, responsible for firefighters, the president declaring a state of emergency. Theres been folks here since day one that, theyre tired. Theyre watching lots of ground be lost. Theyre watching some homes be lost, and that just adds to it. Reporter 60 mile per hour wind gusts fueling the flames, the fires damaging power lines, leaving hundreds of people in the dark tonight and many towns remain evacuated because of the danger. Tonight Officials Say hundreds of homes remain in danger, but after all thats burnt around here, theyre hoping a break in the winds could finally help firefighters get a leg up. Cecilia . They sure do deserve a break. Kendis, thank you. Next to that severe weather. Rob is here now. 15 million americans in this threat zone tonight. Youre tracking it all. Whats going on . This is a big system, cecilia. Its the same system that brought the destructive wind to the fire zone yesterday. Now its in the plains. Much cooler behind this. It actually snowed in montana. Weve got tornado watches from kansas city, des moines, minneapolis, right into canada. The roughest weather is tonight and tomorrow this system gets weaker but still stormy from chicago into detroit. Youre also following tropical storms. We have been talking about danny which was the strongest storm weve seen in this part of the atlantic in five years. Now its barely a category one. 75 mile per hour winds. The weakening trending is going to continue. It skirts to the Northern Islands of the caribbean. They can use the rain so they will take the storm. Hawaii, this is very weak but forecasted to strengthen into a hurricane and potentially make a run at the Hawaiian Islands by mid week. Youll be watching that, rob. Thank you. We turn overseas to china. There has been another explosion at a chemical plant. Nine people injured in this one, the blast triggering a fire. The tremors felt a mile away. It comes just ten days after those massive blasts at a warehouse storing dangerous chemicals in tianjin. That disaster killed at least 121 people. To violent clashes on europes border. Take a look at this video. Thousands of migrants escaping the violence in syria, trying to pass from greece into macedonia, clashing with police there. It started when parents with small children were allowed to enter, then others crushing forward. Several people there injured. Back here at home now and a major win for nba great Michael Jordan scoring big in court. A jury awarding him 8. 9 million. A new defunct Grocery Store ordered to pay up for using jordans name and his jersey number in an ad back in 2009. Jordan saying the money will go to charities in chicago. And if you are headed out to see a movie this weekend, you may encounter this. Bag checks at the door before you even buy your popcorn or take your seat. Americas largest theatre chain instituting this new search policy after a series of violent attacks. Abcs Clayton Sandell reporting in from the movies tonight. Reporter the places we go to escape reality are now having to face it head on. We are in the movies and someone started shooting people. Reporter at this louisiana movie theatre in july, two people are killed, nine more wounded. Earlier in nashville, a man attacked movie goers with a pellet gun and a hatchet. Of course aurora, 12 killed, 70 more hurt. Regal cinemas, the largest movie theatre chain in the u. S. Announcing all bags will be subject to inspection. Shantell martinez says going to the movies with her kids is very different. Im always aware of my surroundings and keep my children close to me. Reporter regal says they want customers and staff to feel safe, saying we acknowledge this procedure could cause some inconvenience and it is not without flaws. Its an invasion of privacy for sure, but also, you know, i know that theyre doing it for safety reasons. Reporter at this regal theatre in new york, we watched ticket takers checking some backpacks, only glancing at others. In denver, some were being inspected, but these large bags got by completely unchecked. Cecilia, searching bags may not have prevented the massacre at this aurora theatre three years ago because the gunman didnt bring his weapons in the front entrance. He snuck them in an emergency exit around the back. Cecilia . Clayton sandell, thank you. Coming up next, one of those movies people may be headed out to see, the growing outrage behind this weekends blockbuster, straight outta compton, that has hiphops cash king apologizing tonight. And the little voice on the other end of this critical call for help. Hello, um, my papa, his chest hurts. How old is he . He is 84. What this 6yearold did that just so happened to save his grandfathers life. When a moment spontaneously turns romantic, why pause to take a pill . And why stop what youre doing to find a bathroom . 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Feeling intense lower back pain . Did you know it may be coming from being on your feet all day . Dr. Scholls custom fit orthotic inserts are uniquely designed to provide immediate all day relief from lower back pain. Its our song. Yeah, there you go. Wait oh, no there are thousands of ways into the complex health care system. And unitedhealthcare has ways to make the system simpler. Like virtual doctor visits. What happened here . I came in too hot. The blockbuster, straight outta compton, is expected to Top Box Office sales again this weekend, but the movies success is also bringing to light some old allegations, and now one of the biggest names in hiphop is apologizing. Abcs aditi roy has more. Yo, dre,. What up . I got something to say. Reporter the blockbuster hit, straight outta compton, the biopic of rap group nwa, drawing criticism tonight for not addressing allegations that former member and hiphop mogul, dr. Dre, physically abused women. Dr. Dre expressing regret in the New York Times saying, 25 years ago i was a young man drinking too much and in over my head with no real structure in my life. However, none of this is an excuse for what i did. Adding, i apologize to the women ive hurt. Those decadesold allegations have resurfaced on social media and revolve around three women, hiphop journalist dee barnes, fellow rapper tairrie b, and singer and dr. Dres former girlfriend michelle who spoke to vlad tv. About dr. Dre allegedly shooting at her. One night we was arguing and he got the gun and i just made it through the bathroom door and he shot at me and missed me by that much. Reporter nearly two decades later, the former nwa rapper reinventing himself as the entrepreneur behind beats music, which apple bought in 2014 for 3 billion. Dre is one of the greatest, most influential music producers of all time. Then this is another element of the story, that he did things that hes ashamed of. He acknowledged that thats part of his story as well. Reporter aditi roy, abc news, los angeles. Still ahead on world news tonight, the massive alligator setting a near record in alabama. Can you guess how much that guy weighs . Alabama. Can you guess how much that guy weighs . Unbelievable toenail fungus . Seriously . Smash it with Jublia Jublia is a prescription medicine proven to treat toenail fungus. Use jublia as instructed by your doctor. Look at the footwork most common side effects include ingrown toenail, application site redness, itching, swelling, burning or stinging, blisters, and pain. Smash it make the call and ask your doctor if jublia is right for you. New larger size now available. Straight to the index starting with a comeback for tiger woods, woods near the top of the leader board at the wyndham championship in greensboro, north carolina. The winner of 14 grand slam tournaments now coming off the most miserable summer of his career. Watch this one. A big oops on a road just outside of boston. Ouch, this produce truck slamming into that overpass. Luckily no one was hurt, but that bridge has been a headache for drivers there. More than 50 accidents since like this one, too tall for that low clearance. Its less than 11 feet. And next, whats 13. 5 feet and green all over . Well, this massive alligator caught last week in alabamas lake eufaula, has officially weighed in at a whopping 920 pounds. It took six men to pull it in. It is the states second heaviest gator ever caught during a regulated hunt and its believed to be at least 60 years old. Across the pond, if youre afraid of heights you might want to close your eyes for this one. A new Luxury Apartment Development plans to build a glass sky pool 90 feet long, straddling two buildings, suspended ten stories up. The pool is supposed to give swimmers the feeling of floating through the air over central london. Not bad. When we come back, little kids remembering three little numbers. How old are you . I am six years old. Quick thinking that saved the grownups. Quick thinking that saved the grownups. My constipation and belly pain feel like a raging storm. Ive tried laxatives, but my symptoms keep returning. My constipation feels like a heavy weight that keeps coming back. Vo linzess can help. Oncedaily linzess treats adults with ibs with constipation or chronic constipation. Linzess is thought to help calm painsensing nerves and accelerate bowel movements. Linzess helps you proactively manage your symptoms. Do not give linzess to children under 6, and it should not be given to children 6 to 17. It may harm them. Dont take linzess if you have a bowel blockage. Get immediate help if you develop unusual or severe stomach pain, especially with bloody or black stools. The most common side effect is diarrhea, sometimes severe. If its severe, stop taking linzess and call your doctor right away. 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Even if youve already been vaccinated with another pneumonia vaccine, prevnar 13 may help provide additional protection. Get this one done. Ask your healthcare professional about prevnar 13 today. Finally tonight, when should you start teaching your children those three crucial numbers, 911 . As abcs john donvan tells us, perhaps no child is too young. Reporter a call comes into 911 and its a kids voice. Hello. Um, my papa, his chest hurts. Okay, how old is he . He is 84. How old are you . I am six years old. Reporter yes, 6yearold Trevor Fowler and it was his grandfather willard having the heart attack at home in burlington, north carolina. Is he breathing normal . Yes, sir. Is he changing color . No, sir, hes getting pale. Please hurry. Reporter it was only in january that we reported on the story of a 4yearold in kalamazoo, michigan who called 911 when her pregnant mom started having seizures. This is calise manning. Shes shaking. Reporter that time things her baby brother delivered safely. Him. Reporter her mom taught back to trevor and listen to how cool he stays. How long will it take them . I cant tell you a time. He kept his composure. If adults would do that, it would be so easy. Reporter it got his grandfather saved. There they all are along with trevors mom who, guess what, had also trained her child for this moment. My mom is diabetic so she keeps telling me how to do it. Reporter theres a lesson in there somewhere about what kids are capable of when theyre the ones you have to count on. John donvan, abc news. Go trevor. I will see you tomorrow morning on gma. This week with george is on, too. And we hope to see you right back here tomorrow night