Cases this season. Nightly news begins right now. From nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. What happened this morning just outside new york city is among the worst nightmares for more than one million americans who ride commuter trains to work each day. It happened at the height of the rush in hoboken, new jersey. A train filled with mostly manhattanbound stop as it reached the end of the line, smashing into a barrier at high speed and into the station itself. One personas killed and mor than a hundred were . C injured. Some second half hurt. The man at the controls at the time is among the survivors and may be able to answer the question of what went so terribly wrong. Nbcs tom costello has the latest from the scene. Reporter 8 45 a. M. I have heavy structural damage. I have people trapped casualties. Reporter a violent thundering crash suddenly exploded through the morning rush in hoboken as new Jersey Transit train 1614 came scream sbog the train station, jumped the end of track bumpers on platform five and tore right into the central hall. Passengers on the train and on the platform, crushed under falling debris. We just heard people screaming in the first car. They were trapped, they couldnt get out. Then i just heard these horrifying terrible screams shrieks. You know, loud, loud shrieks. People just screaming for their lives. Reporter glass, steel support beams and bricks came crashing down. We helped them out of the train. Reporter 34yearold fabiola, a local mother, was killed by styling on the platform. More than a hundred other injured. Some able to walk to nearby hospitals but others transported with serious injuries. I thought we were going to die. I didnt think we would get out. Reporter 13,000 commuters go through their way to and from work in new york. 1614 left at 7 23 a. M. And scheduled to arrive in hoboken at 8 38. But rather than approach at 2 to 3 miles per hour, the train never slowed. It didnt stop, it didnt slow down. It didnt brake. Reporter tonight federal investigators are examining the train, black box and hoping to talk to the trains engineer. Theres no real point as to speculating what happened. Why did the train come in so fast. Reporter we know new Jersey Transit does not have the automatic braking system known as positive train control, a system that can prevent fatal crashes. The ntsb has been recommending positive train control, or ptc, for 40 years. Reporter no suggestion of terrorism. Tonight the engineer is identified as 48yearold tommy gallagher. Nothing in his background that would raise any red flags, either with his employer, or for that matter, any medical issue. By the way, lester, the speed limit posted to go into the train station, 10 miles per hour. Obviously trains going a lot slower. All right, tom, we want to drill down on that Safety System you mentioned, positive train control. Its yet to be installed on an overwhelming majority of rail lines in this country. Where 1. 4 million commuters go by rail as our Miguel Almaguer explains, critics are calling for much more to be done to protect train paengers. Reporter lessons learned. Yr phadelph, eight dead and moren0 injured, a train traveling at speeds exceeding a hundred miles an hour. In chatsworth, california, 25 lots their lives, 135 hurt, when a commuter train slammed head on io a Freight Train 08. Perts say could have been prevented with pove train control, or c. Yearyear, r toen continue to see accidents that could have been prevented by ptc. . X reporter the advancra syst is designed to aumatically stop a train before certain accidents, like those caused by speeding or endi in headon collisions. But only 22 of trains currently have the advanced braking system. While trains like this one in los angeles have ptc,he ways to maximize your safety. Experts say, whenever possible, right in the center of a train, so theres less impact from collision. And also, face the fear. So during extreme braking, youre pushed into the seat and not across the aisle. Gerald atkins narrowly survived the chatsworth crash, the deadliest in metro link history. He was seated in the first car. I always sit in the safest place. Reporter train travel is still among the safest ways to commute. But tonight there are mo quest onow to make it safer sooner. Miguel almaguer, nbc news, los angeles. Were learning much more about the teen accused of a shooting rampage at a South Carolina school playground. Two students and a teacher were injured after the suspect algedly killed his own father at another nearby scene. Now, as our Gabe Gutierrez tells us, police are trying to remember did what may haveriven him to commit such h violence. Reporter tonight in their search for a motive, investigators are looking into whether the suspected gunman may have been bullied. A source close to his family said the 14yearold was being homeschooled after he brought a machete and hatchet to his middle school earlier this year. We experienced a very devastating and lifechanging event. Reporter today an emotiol fire chief described how he along with a volunteer firefighter brushed to wounded, including critically injured jacob hall, while the unarmed brock took off after the suspect. The teachers and all the responders that were on site, he immediately confronted and subdued that shooter. Reporter this mans nephew was at the playground and has a message for jamie brock. Id call him godsent hero. And thats the truth. Reporter onight the suspected family is absolutely shocked and saddened by the senseless action sf oays o son. Firstoliceay en shot and ki his father, Jeffrey Osborn at the family home and then drove about two miles to the school. At 1 44 p. M. , they say he called his grandmother in tears. Her grandson was very distraught, she couldnt understand what he was saying. Reporter at 1 45 p. M. , shots fired near the playground. A teacher was hit in protect them. Reporter administrators are crediting repeated active shooting drills with saving lives. The chairman of wells fargo faced more Harsh Criticism today over bank and credit card accounts opened without the permission of customers in order to meet sales goals. This time it was from hostile members of the cewappevenfter wa the to wit it all. Jo ling kent has more for us tonight. Repter wells fargo employees say the pressure to cell was unbearable. We were led by intimidation. Julie was a Branch Manager in allentown, pennsylvaniae, onc recognized by ceo john stumpf himself but later fired for failgo mee aggressive sales goals. H weven checking accountsnd2 Product Solutions for my branch a day. Believes stumpf should resign and came to washington to see him in the hot seat. Asou came out here and apologized and said the buck stops with me, then you should be fired because it stops with you. Again, congressman, the board has that power. Reporter house members on both sides pressing the ceo to take more responsibility. Did wells fargo employees steal from a million to two million other customers . Yes or no . In some cases, they did. Reporter no criminal charges have been filed, butls million settlement. Today stumpf revealing he first learned of the problem in 2013. We begged and pleaded with family members, with relatives, with business owners, just to open accounts so that we wouldnt lose our jobs. Reporter consumer advocates say what happened at wells fargo could happen anywhere. Check your credit card statements eve month. Reporter today the its aggressive sales goals on saturday, thats three months ahead of schedule, but lawmakers say thats not enough. Jo ling kent, nbc news, washington. Some 20 Million People under flood alerts up and down the east coast. In north carolina, ten inches of rain fell in some areas. And rescuers went door to door saving people who were stranded. The threat continues into the night. Thec ree inches or more to fall all the way up to pennsylvania. The weekend is expected to be a wet onucf ore rnow poli, wre it got even more pernal today between donald trump and Hillary Clinton, with bill clinton now emerging as fai game in the trump playbook. Then there was gary johnson, the thirdparty cand ate and the tough time he had last night. We get more tonight fr nbcs kristen welker. Reporter Hillary Clinton in iowa today, bracing for an onslaught of new attacks, with the trump team signaling theyre poised to whats your response today . He can run his campaign however he chooses. Thats up to him. Reporter in the debate, trump stayed away from bill clintons past, but nbc news has obtained a trump surrogates talking points memo, telling them to talk about clintons infidelities. Trump today in New Hampshire trying out a new attack line. Follow the money. Reporter but backstage with way reporter, pressed on the strategy of dredging up the clintons history. Why would that clinton anyway . Well, youll have to figure that out. I think its Pretty Simple to figure that out. Possibly in the next debate, fair game . Well see what happens. Were going to see what happens. Reporter secretary clinton with reporters dismissing it all. He can say whatever he wants to say, as we well know. Reporter meanwhile, another challenge from clinton, the threat from thirdparty candidates, the gary johnson effect. Johnsons drawing support from clinton, particularly with young voters. But hes also struggled recently, faltering on foreign whos your favorite foreign leader . Who is my favorite just anywhere in the country, any of the continents, name one foreign leader that you respect and look up to. Anybody. Name a foreign leader th you respect. I guess im having an aleppo moment. Im giving you the whole world. The former president of mexico. Which one . Im having a brain name and this gaffe could help that along, thats great news for Hillary Clinton. Reporter as for donald trump, who has been married three times, its not clear his strategy of getting personal with the clintons will help him win over women voters, the very voters he needs more of, in order to win the white house. Lester . Thank you, kristen. Now to an nbc news investigation into whats being called a secret campaign to influence americas have come under attack by hackers andas numbers news Senior Investigative correspondent Cynthia Mcfadden tells us, officials are pointing the finger right at russia. Reporter intelligence sources tell nbc news, theres no doubt the russians are trying to influence the president ial election. Nbc news has examined the classified materials used by those who briefed both hook and donald trump. They indicate the. S. Between the u. S. Government and hacking activity against the 2016 election, only 39 days away. According to two sources at the department of homeland security, there have been attempts to hack the election systems in at least 20 states. We are doing an awful lot of work through our counterintelligence investigators to understandus mischief is russia u to in connection with our election. Reporter nbc news has also learned from a senior u. S. Ince soue that inside a secure Briefing Room this summer, admiral director of the National Security agency toll the congressional intelligence committee, we believe potential adversaries might be leaving cyber fingerprints on our critical infrastructure, partly to convey a message that our homeland is at risk if tensions ever escalate towards military conflict. In other words, a warning from the russians. Senator Diane Feinstein and adam schif issued their own warnings. We have the russian intelligence agencies are making a serious and concerted effort to influence the u. S. Election. This effort is intended to sew doubt about the security of our election and may well be intended to influence the outcomes of the election. If were even talking about russian influence in the election, thats a problem for people accepting the credibility of the results. Reporter but even russias success in creating doubt is still a long way from changing the outcome Cynthia Mcfadden, nbc news, new york. Still ahead, a new government warning about the flu that kno out. Rent will wt also party time i overpack. But my guy knows what to bring. Like viagra single packs for ed. Ask your doctor if your heart is healthy enough for sex. Do not take viagra if you take nitrates for chest pain or adempas . For pulmonary hypertension. Your Blood Pressure could drop to an unsafe level. To avoid longterm injury, seek immediate medical help for an erection lasting more than four hours. Stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. Ask your doctor about viagra single packs. Put some distance between you and temptation with meta appetite control. Clinicly proven to helpen reduce hunger between meals. New, from metamucil, the 1 doctor recommended brand. Impressive linda. It seems age isnt slowing you down. Increasing the risk for me, the shingles virus. Ive been lurking inside you since you had chickenpox. I could surface anytime as a painful, blistering rash. One in three people get me in their lifetime, linda. Will it be you . And thats why linda got me zostavax, a single shot vaccine. Im working to boost lindas immune system to help protect her against you, shingles. Zostavax is a vaccine used to prevent shingles in adults fifty years of age and older. And cannot be used to treat shingles or the nerve pain that may follow it. You should not get zostavax if you are allergic to gelatin or neomycin, have a weakened immune system or take high doses of steroids are pregnant or plan to become pregnant. The most common side effects include redness, pain, itching, swelling, hard lump warmth or bruising at the injection site and headache. Its important to talk to your doctor about what situations you may need to avoid since zostavax contains a weakened chickenpox virus. Will it be you . Talk you to your doctor or pharmacist about me, single shot zostavax. Youve got a shot against shingles. Were back now with a new warning from Health Officials as we stand on the brink of flu season. The cdc fears more children may get the get the best protection this year. Reporter for 5yearold joseph morada, it happened so fast. A simple case of the flu quickly sent him to the hospital. And then he ghot worse. The attending doctor came in and i looked at her and i said, i cant hold my hand up. And i said, did she die . And she , with me. Reporter joseph died of a flu strain not covered in the vaccine he received. That strain is now covered in this years shot. Get a shot. Reporter today top officials worried about children getting vaccinated because they can no longer use the flu mist. Everyone ages six months or older needs a shot. The flu vaccine lowers your risk by 50 to atrisk population. Reporter sar ease runs a group called families fighting flu, and getting their daughter vaccinated is a family event. We want families to understand that this can happen to you. Reporter an important reminder, last year, more than half of americans failed to get a flu shot, taking a potentially deadly risk. Dr. John torres, nbc news, syracuse, new york. We are back in a moment with a heckler who put his money and shocke . Jake reese, . Day to feel alive . . . Jake reese, . Day to feel alive . . If youre approaching 65. Nows the time to get your ducks in a row. [quack ] medicare only covers about 80 of your part b medical expenses. The rest is up to you. So think about an aarp Medicare Supplement insurance plan, like any standardized Medicare Supplement insurance plans, they help cover some of what medicare doesnt pay. So dont wait. A Golden Moment at the white house today as in olympic gold. President obama welcomed team usas olympians and paralympians to the east room, to congratulate them on their performances in rio. Most of the final five were there. Star gymnast simone biles getting to rub elbows with the first lady and stwiming shoutout from the president today. Little kids at a party, something every parent can relate to. Only today it was the royal family on their visit to canada. Prince george and Princess Charlotte attended a party complete with pony rides and lots of balloons which charlotte couldnt get enough of. The children seemed fascinated in playing with the other kids, two military families. Rory mcilroy and stenson couldnt stivg a 12foot putt. A fan shouted that he could even he could make the shot. So they pulled him on the green, gave him a putter, and look at that, the fan showing the pros how its done and earning the admiration of some of the worlds top players. You think hes got a great story to tell . When we come back, why thousands of im hall of famer jerry west and my life is basketball. But that doesnt stop my afib from leaving me at a higher risk of stroke. Thatd be devastating. I took warfarin for over 15 years until i learned more about oncedaily xarelto. A latest generation blood thinner. Then i made the switch. Xarelto . Significantly lowers the risk of stroke in people with afib not caused by a heart valve problem. It has similar effectiveness to warfarin. Warfarin interferes with vitamin k and at least six blood clotting factors. Of your bodys natural clotting function. For people with afib currently well managed on warfarin, there is limited information on how xarelto and warfarin compare in reducing the risk of stroke. Like all blood thinners, dont stop taking xarelto without talking to your doctor, as this may increase your risk of a blood clot or stroke. While taking you may bruise more easily, and it may take longer for bleeding to stop. Xarelto may increase your risk of bleeding if you take certain medicines. Unusual bruising or tingling. 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Ask your doctor about viagra single packs. Finally tonight, what has become a mustsee tv phenomenon. People around the country, even the world, are watching intersection in jackson hole, wyoming. What could possibly be so fascinating . We sent harry smith to find out. Reporter jackson hole, gateway to the tetons and yellowstone. Jawdropping vistas and an eyeful around every corner. But on any given day, go figure, hundreds, even thousands of people around the world are looking at this, what they say is the busiest intersection in pretend to understand, watching this camera has suddenly become something of a thing on youtube. With running commentary from viewers who seem especially pleased if a red truck goes by. Were guessing this might be part of the slow tv movement. On netflix, you can watch people knit for hours. A big favorite is the fire. Think of it as a yearlong yule log. Thrilled with the newfound attention, the folks in jackson heres the dancing sheriff, and the creative types, tried a miniature marriage proposal. Viewers at first were pleased. But then they were like, thanks for entertaining us, but give us back our boring intersection. [ laughter ] and that was very unexpected. We thought we were providing some genuine entertainment. Reporter and so there it is, traffic and tourists to transfix a global audience. Are these people at work or doing this on their own time . I feel like they should do something else. [ laughter ] reporter it all gives new meaning to the old saying, theres nothing on tv. Harry smith, nbc jackson, wyoming. Almost as fun as tc ng paint dry. Thats going to do it for us on a thursday night. Im lester holt. For all of us at nbc news, thank you for watching and charles two girls in brown deer rushed to the hospital after being attacked by dogs. This is happening near 48 48th and dean. Shannon thats where we find Ricky Mitchell with the latest. Reporter the last brown deer policeff scene 15 minutes ago. I can tell you we believe the incident happened in the front lawn of this brick house. Its unclear if that house had anything to do with it or if it happened in their front lawn. We have video from chopper 4 earlier today showing this scene. As you said, two teen girls, according to police, were attacked by two dogs in this neighborhood. We know it happened about 4 30 this afternoon. According to police who responded to the scene they were that had been shot. They didnt know what the condition was of those dogs. As far as they knew, when Police Called them the dogs were still alive. When we were here on scene, when we saw them taken away it was hard to tell what the condition was of the dogs. When they were called to the scene, the dogs were still an i have look. Were waiting to see an update on the dogs condition. We know the girls were taken to Childrens Hospital with nonlifethreatening injuries. And thats where they are right now. If we learn any additional information, we will be sure to updateou porting live in brown deer. Harles thanks. Well have more updates on live at 10. And for the latest head to our website tmj4. Com. Shannon also breaking, its the case that shook milwaukee to its core after a threeday trial a jury finds the murder suspect of a 5yearold girl, Laylah Petersen guilty. It didnt take the jury long to deliver their verdict. Charles Veronica Macias is live where the trial just ended