Good evening. And we begin tonight with the horror playing out inside an Elementary School in South Carolina. A teenager walking into the school with a gun. Authorities believe he had just shot his father dead at home. Then, going to the school playground, opening fire at townville elementary. Teachers trying to help. And then, the anguish outside. Parents rushing to the scene after being alerted there had been a shooting at the school. Abcs Steve Osunsami is on the scene tonight. Move that patient towards the helicopter. Reporter cell phones in the pockets of frightened parents across this small town starting burning up at 1 45 p. M. , just before the end of classes for the day at townesville eleme elementary. We did have a report of a third patient. Reporter police say a local teenager armed with handgun appeared a playground behind the school, and started shooting at teachers and children. There were some students in recess area, shooting may have occurred there, teacher may have helped students into the classroom. Reporter a young boy was shot in the leg, another boy in the foot, a teacher trying to keep the kids safe was shot in the shoulder. One of the children had to be flown to a hospital in greenville. Police got here fast. In seven minutes, they had the teen in custody. Snipers went to roof to clear the building, while this all too familiar scene of moving children by school bus to a nearby church played out. Everybody stay in the lean, please. Reporter parents couldnt get to their children fast enough. Its not a phone call you ever want to get. My mind started run, and i got here as fast as i could. Reporter about two miles from the school, another crime scene. Police say its the father of the shooter, 46yearold jeffrey osborne, and hes been shot dead. Police say the son was homeschooled, and theyre not sure yet why he targeted the Elementary School. School is cancelled for the rest of the week. Police tell us that no one who was hurt at the school, those two students, nor the teachers, suffered any injuries that were lifethreatening. They will be okay tonight. The governor of South Carolina is on her way here. Authorities tell us that investigators will be here at the school through the night. David . Steve osunsami on the scene there in South Carolina for us. Steve, thank you. We turn now to a Deadly Police shooting in san diego. The aftermath streamed live on facebook. And police releasing this image from cell phone video. It shows the man taking what they call a, quote, shooting stance, appearing to aim. The mans sister says she told police he did not have a gun. Abcs matt gutman is in california. The ambulance is just now arriving. Reporter these are the raw images moments after police shot alfred olongo. A bystander broadcasting this video live on facebook. Can you hear the wails of his sister. I call three times for people to come and help him. Reporter a representative says she called the police for help with her brother who was acting erratically at a strip mall, making sure to tell police her brother was not armed and suffering from an emotional breakdown. Hes still not complying, still not getting his hands out of his pocket, walking all over the parking lot. Reporter police say they fired because olongo appeared to point a weapon at one of the two officers. Releasing that single image of the incident. It was a twohand hold, shoulder level, like you would be firing a handgun. Reporter but police acknowledging tonight, there was no weapon. Protesters gathering almost immediately at the scene. Lets go. Reporter and again today. Wheres the real criminals . Reporter anger here still sharp tonight. Now, the nations eyes are watching, quote unquote, americas finest city. It aint looking so fine right now. Reporter police have released a single freeze frame of that video, which they say proves that one of their officers was threatened. But locals here are saying, they want to see the entirety of that video, and until they do, there is the threat of continued unrest here. David . Matt gutman, thank you. Now, to breaking developments tonight in the investigation into the bombs here in new york city and new jersey. The fbi saying they know the two mystery men now. Releasing this new surveillance image of them just today at the site of a bomb that did not detonate. They took the Pressure Cooker out of the bag and then walked off with the bag. The police have been asking the men to come forward for a week now. But they now say those men have left the country, and they know where they went. Heres abcs chief investigative correspondent brian ross. Reporter fbi agents tonight say they used Hotel Registration cards to identify these two men as employees of an Egyptian Airline visiting new york from cairo. But authorities still have not solved the weeklong mystery of what they were up to when they apparently stumbled upon the piece of luggage with a Pressure Cooker bomb, walking off with the bag and leaving the bomb behind. They are witnesses, there are no criminal charges, they are not in any jeopardy of being arrested. Reporter but now authorities are arranging to question them to determine if they are tied to the bomb attacks in any way, or just sidewalk scavengers. Mohammad rahami, the father of the accused bomber, tells abc news he has no idea who they are. Ive never seen them in my life. Reporter the father also says he is convinced his 28yearold son ahmad acted alone, changing the locks on his bedroom door. Nobody can go in. One time, my grandson, he went to his room, and hes screaming and kick him out back. Hes little, 4 years old. Reporter what do you think . I said, he did something wrong. Reporter the father also told abc news that one of the fbi agents present when his son was captured last week, the man in the red checked shirt, is the same agent who two years earlier had investigated his son as a possible terrorist, and concluded, without interviewing ahmad in person, that he was no terror threat. All right, so brian ross back with us here tonight. And brian, if the fbi believes these two men are in egypt, how quickly can the fbi get to them . Reporter may need the permission of the egyptian authorities, and that could be tric tricky, david. Brian, thank you. We turn next to major developments in the race for president tonight. Donald trumps team a short time ago acknowledging he must now change how he prepares for the next debate. Abcs tom llamas, in wisconsin, with new reporting tonight. Reporter tonight, Donald Trumps campaign admitting real missed opportunities at that first debate. But onstage in iowa, trump sounding confident as ever. You know, we had the debate the other night. And every Single Online poll had us winning sometimes by a landslide. Reporter those polls, unscientistic, and behind the scenes in trump tower tonight, Senior Campaign sources acknowledge trump should have been better prepared. That they should have held mock debates. That they should have been ready for questions about women. And about his discredited effort to prove president obama was born outside the u. S. I think i did a great job. Well, just listen to what you heard. Reporter trump, one source said, believed the birther issue was, quote, well within the past. The aides say they were also shocked trump never went after clinton on issues like benghazi. Trump himself says he didnt go hard enough after clinton. And i was also holding back, i didnt want to do anything to embarrass her. Reporter but he wasnt talking about benghazi there. Trump alluding to the fact he didnt bring up bill clintons affairs on that debate stage. And i didnt want to do it with chelsea, who i think is a very wonderful young lady. Reporter eric trump says his father deserves credit. He really took the high ground, where he had the opportunity to go very, very low. I think that took a lot of courage. Reporter but trump hasnt ruled out going there next time. Even though in the past, he has said bill clinton was a victim himself. Tonight, at least trump keeping the focus on Hillary Clinton. Hitting her hard on her health. You see all the days off that hillary takes . Day off, day off, day off. All those days off and then she cant even make it to her car. Isnt it tough . All those days off, right . You ever see her chart . She wont be campaigning today, she wont be campaigning today. Reporter but clinton supporters noticed trump himself sniffling at mondays debate. But he insists he didnt have a cold. Tom llamas live in wisconsin tonight. And tom, the Trump Campaign tonight acknowledging they could have prepared more for that first debate. The next one, we know, a little more than a week away now. Any changes in prep . Reporter david, trump had a packed schedule going into that debate, and aides wonder if it was too packed. But the next two weeks are the same thing. Filled with fundraisers and events. Its unclear if trump will take time to prepare more. This is the part of the process he likes most, david, speaking to these large crowds. David . Tom llamas on the Trump Campaign for us. Tom, thank you. Meantime, Hillary Clinton hoping her debate performance will help with the polls in the key battlegrounds, showing a very tight race going into that first debate. Trump gaining in florida, ohio and pennsylvania. And tonight, one of clintons most powerful weapons, first Lady Michelle obama, in pennsylvania. And she did not hold back on the trump. Heres abcs cecilia vega. Hey reporter she is Hillary Clintons secret weapon. Hillary is tough. Reporter and today, first Lady Michelle obama fired a shot directly at donald trump, going after him for questioning where her husband was born. Hurtful, deceitful questions, deliberately designed to undermine his presidency. Questions that cannot be blamed on others or swept under the rug by an insincere sentence uttered at a press conference. Let me take a moment. Reporter now in a starring role on the campaign trail after her Convention Speech that brought down the house. Both obamas speaking directly to young voters at a time when more than half of them say they arent even certain they will vote in this election. If you dont vote, thats a vote for trump. If you vote for a Third Party Candidate who has got no chance to win, thats a vote for trump. Reporter with 41 days to go, clinton calling on an army of her famous friends. Clinton with her former rival Bernie Sanders on his turf in New Hampshire today. You know, Bernies Campaign energized so many young people. Some of you in this crowd. Reporter outside, not everyone was convinced. Are you excited about Hillary Clinton . More or less. If we want anything to come from bernie, our best bet is going to be with hillary. And scecilia vega live in ne hampshire tonight. We know that first Lady Michelle obama does not love campaign, but hes out there for clinton, with her own soaring approval ratings. Reporter sky high approval ratings, david. Especially with young people. But the clinton team thinks she can also help them win undecided voters. One source telling us, they would have Michelle Obama out on the campaign trail every day if they could. David . Good luck with that. All right, cecilia vega live with us again tonight. Cecilia, thank you. Next, to the severe storms at this hour. Thunderstorm and Flash Flood Watches in the midatlantic right now while were on the air. Storm clouds over washington, d. C. , up to six inches of rain possible. Also, we are watching Tropical Storm matthew, just forming in the caribbean, heavy rain already. Where is that headed . Lets get right to meteorologist rob marciano, tracking it all, beginning with the storm right here in the east tonight. Rob . Reporter hey, david. And its a big one. Really going to impact the entire northeast quarter of the country. Centered over indiana, but it is spinning heavy showers and storms across the midatlantic. A Flash Flood Watch that includes d. C. And baltimore through at least friday, could see five inches or more of rain there. And here is Tropical Storm matthew. Nearly a hurricane as it enters the caribbean. Forecast to head west, and then make a right turn north, as a hurricane impacts jamaica and cuba and potentially the u. S. Next week. Way too soon to say when or where. David . Rob marciano, thank you. Next tonight, word that there will soon be more u. S. Boots on the ground in iraq. Defense secretary ash carter announcing that 615 additional troops will be sent there to help the Iraqi Military take back the city of mosul from isis control. Right now, there are more than 4,500 military personnel in iraq, training, advising and assisting iraqi forces. Next, to capitol hill tonight. Congress overriding president obamas veto, despite the president s 11th hour appeals. Its the first veto override since hes been president. At issue, a new law that would allow 9 11 victims and survivors to sue saudi arabia for allegedly supporting the attackers. Abcs mary bruce is right there on capitol hill. Reporter 15 years after tom strata was killed in the north tower, this was the moment his wife terry had been waiting for. The bill is passed. Reporter congress tonight allowing families of those killed on 9 11 to sue saudi arabia. Now, i can go home and tell my children, you know, good wins over evil. Good wins over bad. And that the fight was worth it. Reporter it is a humiliating blow to the president , who staunchly opposed the bill. Congress, for the first time, overriding his veto. The white house says it could now put americans abroad and the u. S. Government at risk of lawsuits, too. Its a dangerous precedent and its an example of why sometimes you have to do whats hard. Reporter and earlier today, the white house called the override the single most embarrassing thing the senate has done in decades, which did not go over well with lawmakers here or the 9 11 families. David . Mary bruce on capitol hill tonight. Mary, thank you. And also this evening, we have learned that president obama himself will attend the funeral of former israeli president shy mon per rimon per. The architect of its military might, but also, one of its fiercest champions of peace. He shared the Nobel Peace Prize in 1994, after secretly arranging an historic peace accord between israel and the palestinians. President obama awarded him americas highest civilian honor, the medal of freedom, four years ago. And tonight, the president now planning to be there to honor him one more time. There is still much more ahead on world news tonight this wednesday. The mystery at sea. The son and the investigation. His mother presumed dead. That son now sitting down with us tonight. What happened out there on the water . And the investigation that now continues. The volcano erupting. Ash soaring 6,000 feet into the air, and hundreds of tourists trapped with the eruption. Well have the latest on the search coming up. And look at this. The Marriage Proposal nearly ending in disaster. The boyfriend in total panic. Millions watching. Dropping the ring. They are all looking. How does this end . How does this end . As we continue tonight. 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Always be you. Next tonight here, new developments in that mystery at sea. The son rescued off Marthas Vineyard after eight days in a life raft. Searchers had given up. His mother is still missing, and feared dead. And police are now searching the sons home. Abcs linzie janis, sitting down with that son just a short time ago. Reporter tonight, the man rescued off Marthas Vineyard is speaking out, and answering new questions about his eight days lost at sea. But i didnt know that we were sinking until we sank. Reporter Nathan Carman, now back on land after being scooped up by a passing ship. The coast guard questioning the 22yearold about how his boat took on water and sank during an overnight fishing trip. Nathan, who has aspergers syndrome, says he lost sight of his mother as he scrambled into a life boat. I did see the life raft, i did not see or hear my mom. I was calling out to my mom. Reporter she was never found, and is presumed dead. But just hours before Nathan Carman arrived on shore, police in vermont were seizing items from his home. A search warrant revealing nathan is under investigation for reckless endangerment, ruflting in death. His boat, it says, was in need of mechanical repair and that nathan could have potentially rendered his boat unsafe for operation. But nathan says he believed the boat was safe. I would not have taken my mom out fishing with me had i not believed the boat was seaworthy. Reporter nath