And the ninth biggest point drop ever. For stockholders, jim axelrod tells us, it has been a week for the the strong. Rose tonight, two americans are being called heroes for preventing a mass shooting on a highspeed passenger train heading from amsterdam to paris. Jonathan vigliotti is in our london newsroom. Jonathan, what you can tell us . Reporter charlie, the two passengers who tackled the gunmen were offduty American Service men. The gunman was carrying several weapons in his luggage including a kalishnakov rifle, automatic pistom oland knives. According to veries, the American Service men heard the suspect loading his weapon in the bathroom and confronted him when he came out. The suspect has been taken into police custody. Both americans suffered injuries. One may have been hit by a bullet. Police have identified the suspect as a 26yearold of moroccanan descent. He was apparently known to intelligence services. Frances interior minister praised the two americans calling them extremely brave and that they helped prevent a terrible tragedy. Charlie, so far, there is no motive for the attack although terrorism has not been ruled out. Rose thank you, jonathan. The white house said today a u. S. Military strike has taken out the number two man in isis. Fadhil alhayali was traveling in a vehicle near mosul in Northern Iraq when he was killed. He was once a colonel in saddam husseins intelligence operation. Tonight, police in ferguson, missouri are looking for the killer of a young girl shot to death in her own home. The latest now from cory stark of our cbs st. Louis affiliate, kmov. Reporter nineyearold Jamyla Bolden was doing her homework in her mothers bedroom when a bullet came through the window, killing her almost instantly. It happened just a few blocks from where Michael Brown was shot by police last summer, sparking months of violence aimed at the Ferguson Police department. Only this time, the cops and community are on the same side. At a vigil thursday night, the first officer to arrive after emotion. I just tried. I did everything i could. I wish i had saved her. Reporter charlie, police are saying very little about this investigation. They have made a public plea for the shooter to come forward. Beyond that, theyre not saying much at all about this case. Rose cory stark from our affiliate kmov, thank you. In charlotte, north carolina, the judge declared a mistrial today in the case of a white Police Officer charged with voluntary manslaughter in the Fatal Shooting of an unarmed black man two years ago. The jurors said after four days of deliberation, they were deadlocked. Officer Randall Kerrick was accused of using Excessive Force against jonathan ferrell. Kerrick said he feared for his life. Today, president obama declared an emergency in parts of Washington State inundated by wildfires. That will make them eligible to apply for federal aid. Danielle nottingham is there. Reporter at least 13 large wildfires continue to rampage out of control across Washington State as firefighters worked, sometimes in vain, to save houses and other structures. Outside of omak this morning, Brad Armstrongs please were bull dozing brush to protect his home from the threatening flames. I havent seen any firefighters, or anybody around. Right. Theyre theyre all out where theres a little more dense population right now. Reporter resources are stretched so thin, government officials are now asking civilians for help. Omak retiree butch pierce signed up today. Anything they want, ill run a shovel, water truck, low boys anything they got. Im 69 years old and ive seen a lot of stuff in my lifetime and im telling you guys right now, you have never seen anything like this. With when that fire is coming towards you, its like armageddon. Reporter a solemn procession last night was a reminder of how deadly these fires have become. Three firefighters were killed wednesday when their vehicle was overrun with flames in twisp, washington. And the weather is only making things worse. In okanagan county, high winds doubled the size of one fire overnight. Elaine feddersen and her husband had to pack up their trailer and flee. Its devastating and its hard because you got so few firefighters. We need a lot more firefighters. This is a vast area. Reporter 200 Army Soldiers will join fire crews here in washington on sunday, and, charlie, the need is so great, more than 70 firefighters from new zealand and australia will arrive here this new england. Rose thanks, danielle. The storm named danny grew today into a powerful category three hurricane with high sustained winds of 115 miles per hour, but it is still far from land, and forecasters expect it to weaken to a Tropical Storm by the time it reaches the caribbean islands next week. We want now to go back to the wall street story and that 530point loss in the dow today to end a very bad week. Heres jim axelrod. Reporter the closing bell was the most welcome sound of the week on wall street, putting the bloodletting on hold. This was the worst week of the year. The dow lost more than 1,000 points, and its now off more than 7. 5 for the year. Weve had a market thats done incredibly well since the lows in the spring of 2009 that probably ran too far, too fast and needed to reset. Reporter economist max wolf says the u. S. Stock market had long been the best global performer, attracting a lot of investment from underperforming countries, but the u. S. Markets were still outpacing the broader economy. The u. S. Stock market and assets had become the cleanest dirty shirt in the hamper so everybody was wearing it because it was cleaner than other dirty shirts but at some point you realize its a dirty shirt. Reporter apple dropped nearly 9 this week, walmart 8 , and exxon, which lost nearly 8 this week, is now nearly 28 off its 52week high. Chinas slowdown isnt helping the price of oil any. Chinese manufacturing is at a six nafl nafl year low, reduces demand. At one point today oil slipped to a sixyear low. What weve seen here is were overdue for a direction. Were starting to get it, but oboy is it coming on hard and fast and that makes us a little more agitated and it makes it feel worse than it probably is. So good news, definitely not. Cataclysmic, also definitely not. Reporter are there bright spots . Sure. Homes were selling at the fastest pace in eight years last month, fueling that in part concern the fed might raise a key Interest Rate next month, but if the markets continue to tank, the fed will think twice about a rate hike. Rose thanks, jim. Supporters of donald trump lined up tonight in mobile, alabama, to see and hear the president ial frontrunner. Tusm tweeted, we are going to have a wild time in alabama. The silent majority is back. Major garrett is there. Reporter spectators lined up hours in advance for the biggest trump rally of the campaign southern style, in a football stadium. This is trump for the first time acknowledging an act of violence linked to his rhetoric. Boston Police Arrested two men in the beating of a hispanic homeless man. The suspects said they were justified because they believed with trump on immigration. Trump was asked about it wednesday. They think would be a shame but i havent heard about that. I will say, the people that are following are very passionate. Reporter he continued to ignore the episode thursday, but today tweeted that passionate supporters must show respect and that he does not condone violence. Trumps crowds frequently rise to applaud his tough immigration language. Theyre out of here. First day, i will send them people those guys are out of here. Reporter jeb bush tried this week to echo some of that tough talk and found himself embroiled in controversy for calling children born in america of undocumented immigrants anchor babies. You dont regret it . No, do you have a better term . Im asking you. You give me a better term, and ill tiewz. Reporter that echoed trumps language the day before. You mean its not politically correct, and yet everybody uses it. So you know what . Give me a different term. Give me a different term. What else would you like to say. Reporter bush has a history with this phrase. In 2013 he helped launch the Hispanic Leadership network and instructed republicans to avoid languages offensive to latino voters. Charlie it read in part, dont use the term anchor babi. Rose Major Garrett in washington. This program note from washington. John dickerson will interview donald trump this sunday on face the nation. As Congress Studies ways to save money, u. S. Embassies around the world are getting a closer look. Nancy cordes tells us about plans for a new embassy in mexico that are now delayed and the estimated cost to taxpayers close to 900 million. Reporter everyone agrees that the 55yearold u. S. Embassy in downtown mexico city is cramped, outdated, and needs to be replaced. But finding new property in the worlds fifth most populated city can be difficult. In 2011, the state department settled on this 15acre plot that kim with strings attached. It was the site of a colgaet palmolive factory and needed a full environmental cleanup before building could begin. Four years later construction is still in limbo. Its a bit of a fiasco. Reporter utah republican Jason Chaffetz chairs the House Committee on government reform. He says the estimated Construction Costs have ballooned from 557 until to 763 million. We hear its going to be anywhere between nine months and two years until we as the United States government can even start to turn the first shovel full of dirt. Reporter in a state, colgate paul molive insisted the state departments head of embassy construction, lydia muniz, visited the site in may and told cbs news the Cost Increases arent due to delays but to an increase in the size of the planned embassy from approximate 890 desks to 1,335 desks. Still, republicans argue that the obama administrations shift away from cookiecutter embassies towards more unique designs, like these in london and jakarta, cost too much and takes too long. State department under secretary Patrick Kennedy told us last year that tailoring embassies to locations will save money over time. Our use of the Design Initiative gets us the security we need and the functionality we need at the best possible price. Reporter once the site is clean, construction of the u. S. Embassy in mexico is expected to take at least five years, which means, charlie, that Foreign Service workers there wont be able to move into their new, moresecure offices until at least 2020. Rose thanks, nancy. There is a massive effort under way to raise an entire town by three stories. Two women just made u. S. History. And an invasion of poola bears. Youll see what i mean when i continue with the cbs evening news. Om covergirl. A longwear makeup that wont look dull and dry on your skin. Stay luminous has all day hydration plus luminosity for a longlasting natural glow love at first light new stay luminous makeup and for gorgeous longwear lip color thats loaded with moisture in all the colors of love from easy, breezy, beautiful covergirl ugh heartburn no one burns on my watch try alkaseltzer heartburn reliefchews. They work fast and dont taste chalky. Mmm. Amazing. I have heartburn. Alkaseltzer heartburn reliefchews. Enjoy the relief. 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. 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Seth doane went there. Reporter 10 hours a day, six days a week, rock is funneled through nearly two miles of giant conveyor belts. It will form a new foundation for this entire town. We need conveyor belts. We need trucks. Reporter amya miller is an american who grew up in japan. She was so devastated by news of the tsunami, that she flew to japan to volunteer and never left. Talk about building a city from scratch. Reporter now shes helping the governments of rijuzentakata, which lost a tepg of its population, more than 1700 people, when the town washed away. Even seeing pictures of the destruction, its hard to get a sense for the size of the tsunami. But heres a reminder by the side of the road the water reached the top of this sign. So theyre lifting the city three stories higher by shaving off the top of a mountain and redepositing the soil. Were rebuilding the city, literally from ground up. We are moving mountains. I cant get much more literal than this. Reporter from above, we saw the 1. 5 billion project. Conveyor belts move 4,000 dump truckloads of soil every day. Tsuyoshi yamada is in charge. Why not relocate this town to a higher place somewhere else where youre not reconstructing everything . Usable land is extremely scarce through the disaster zone, but especially here, he told us. Theres nowhere else for us to rebuild. Pup owner eiki kumagai is still living in temporary housing. His restaurant on the outskirts of town is temporary, too. For me, moving somewhere else is not an option, he said. My family has lived here for generations. Survivors here say they must rebuild on this spot or be defeated by the tsunami. Seth doane, cbs news, rijuzentakata, japan. Rose you can imagine what you can do. Well be right back. When diet and exercise arent enough, adding crestor lowers bad cholesterol up to 55 . Crestor is not for people with liver disease, or women who are nursing, pregnant, or may become pregnant. Tell your doctor all medicines you take. Call your doctor if you have muscle pain or weakness, feel unusually tired, have loss of appetite, upper belly pain, dark urine, or yellowing of skin or eyes. These could be signs of serious side effects. Im down with crestor make your move. Ask your doctor about crestor. Its back to school time you think your car smells fine, but your passengers smell this. Eliminate odors youve gone noseblind to for up to 30 days with the febreze car vent clip break out the febreze, and [inhale exhale mnemonic] breathe happy. If you have moderate to severe Rheumatoid Arthritis like me. And youre talking to a rheumatologist about a biologic, this is humira. This is humira helping to relieve my pain and protect my joints from further damage. This is humira helping me reach for more. Doctors have been prescribing humira for more than 10 years. Humira works for many adults. 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But current rules prevent them from serving in Ground Combat units. The heat in new jersey this week was unbearable. So mama bear and five cubs turned a backyard in Rockaway Township into a privacy club. They swam and roughhoused while the family watched from inside their home. They bloke brok my floaty rose they chewed on all the toys, not just the floaty. The pool party lasted for nearly a half hour until mama led her cubs back into the woods. And then, there are the humans who are turning into butterflies. Steve hartman is next. It may seem strange, but people really can love their laxative. Especially when its miralax. It hydrates, eases and softens to unblock your system naturally, so you have peace of mind from start to finish. Love your laxative. Miralax. Want bladder leak underwear that moves like you do . Try always discreet underwear and move, groove, wiggle, giggle, swerve, curve. Lift, shift, ride, glide, hit your stride. 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Weve watched him give away donuts and honor kids for random acts of kindness. Now chris is out to make kindness contagious. Heres steve on the road. Reporter his voice is almost gone. But as we first reported last march, chris rosati still has a lot to say about how to make the world a better place. His most recent revelation was about the butterfly effect. The butterfly effect is this idea that a single butterfly flapping its wings on one side of the globe can, in theory, start a hurricane on the other. Its a physics concept, but chris wondered if it could be applied to kindness as well. Reporter last winter, he decided to test the theory at this diner in his home town of durham, north carolina. He saw two girls at the table next to his and gave them each 50 with one very simple instruction do something kind. Reporter that was the end of it . Yeah. And i forgot all about it. Reporter until . We got this email. Reporter it included pictures from a village in africa with People Holding signs that read, thanks a lot for spreading kindness. Chris rosati. It was the butterfly effect. Reporter the two girls responsible were 13yearold kate cameron and her 10yearold sister, anna. They say they couldnt believe it when a stranger gave them each 50. You didnt want to let him down. No. That makes you want to do something good with that money. Yes. Reporter the girls say they already knew about this village in sierra leone where their dad had worked in the peace corps. They knew the people there had been working hard to fight ebola so the girls paid for a feast to help them celebrate being ebola free. They said it felt great to help. Its inspired me. I would definitely encourage other people to do it. Reporter now that its proven, what do you do . Oh, man. You get a whole lot of butterflies to flap their rings. Reporter to that end, chris rosati, who has already done so much for north carolina, launched his latest campaign. He told these screaming fans his plan to give out hundreds of little butterfly grants, 50 each, to any kid who wanted to start changing the world. We did a bake sale for cancer in order to raise money for our cancer hospital. We did a project where we put a bookshelf in a soup kitchen. Reporter since this story first aired, hundreds of kids across the country have either gotten a grant or acted on their open, and it continues to spread. All these acts of kindness, all inspired by one mans simple gesture. And then a hero comes along reporter look like a hurricanes brewing. Steve hartman on the road in durham, north carolina. That a hero lies in you applause cheers rose no matter how difficult your life is, you can make a difference. Thats the cbs evening news. Scott will be along sunday on 60 minutes