Good evening on this very busd night. And we begin here with a stunning new image caught on a neighbors surveillance camera. A 71yearold man shot while working in his lawn. It is a chilling reminder of a city already in crisis. You can see the two suspects approach on bikes. One man then wrestling with the homeowner. Moments later, that homeowner is shot. And then you can see him trying and you can then see him trying to find help. Tonight, weve learned hes in intensive care. That city in shock. And it comes after that stunning new number. 500 homicides, just this year. Abcs alex perez with the video from chicago tonight. Reporter it takes just seconds. 71yearold frederico laguardia, out watering his lawn, when two young men on bikes ride past him. What happened next, tonight, a cruel symbol of the gun violence plaguing chicago. With laguardia Still Standing confronting the senior citizen. Wrestling him to the ground, shooting him and rifling through his pockets. Then getting back on his bike and riding off. Laguardia wounded, but able to stand, staggers across the lawn. Clutching his abdomen, he walks to a neighbors door. No answer. Laguardia sits on the steps and calls for help. Its just absolutely ridiculous. I mean, you cant youre not even safe in your own yard. Reporter tonight, the shooting of frederico laguardia, more proof of the violence gripping some chicago neighborhoods. This is not an individual thing. It happened to all of our grandfathers. It happened to all of our fathers. Its happened to all of our sons. Reporter nearly 3,000 shootings in chicago just this year. 500 People Killed in the wave of violence. 90 dead in august alone the deadliest month in two decades. Its not a police issue, its a society issue. You know, impoverished neighborhoods, people without you show me a man who doesnt have hope, ill show you one whos willing to pick up a gun and do anything with it. Reporter and tonight, frederico laguardias neighbors with this appeal to the parents of those young men on the bikes. If you can identify thats your child on there, do the right thing before you get that knock at your door, that your child has been arrested. Because its coming. Its coming. And alex perez is live in chicago tonight. And alex, youve reported extensively on the violence there, the efforts to bring it in check. And tonight, the victims family with him . Reporter thats right, david. We talked to laguardi as wife, who tells us, hes in the hospital, doing better, and in fair condition. Neighbors who live here tell us, this shooting is just another sign of the crisis so many people in this city are facing. David . Alex perez chicago for us to lead us off. Alex, thank you. We are also tracking a deadly tropical system that slammed into mexico, and is now barrelling across the southwest and moving across this country tonight. In parts of the southwest, a month of rain in just hours. Now triggering flash flooding in arizona, after killing two in mexico. And tonight, flash flood watches in the center of the country. Green bay, wisconsin, getting an inch of rain in just 15 minutes. Parts of this system are moving up toward the midwest. Chicago and other cities in the bulls eye. Wl very likely bring travel headaches. So, lets get right to meteorologist rob marciano, with live us tonight with more on the track. How much rain is wind is coming, rob . Reporter good evening, david. Well, it began with whats left of hurricane newton. Nearly made it to the arizona border as a tropical storm. Very impressive. Right now, the center is nearly over tucson. You see on the satellite picture, most of the moisture is off to the east. So, i think new mexico is the biggest threat. Then it gets drawn up into this northern system and heavy rain across the midwest. Flash flood watches posted from des moines all the way through western parts of wisconsin. Severe storms tonight, southeastern dakotas. A tornado threat there. And a batch of storms also to the south. Chicago, got a couple of rounds tonight. Could see some strong storms there. Brace for that. And brace for the heat across the east tomorrow. Near 100 degrees in philly and d. C. You thought summer was over . Well, not quite yet. David . Rob marciano with us tonight. Rob, thanks, as always. Now, to major developments in the race for the white house tonight. This evening, the commander in chief test. Donald trump once saying that he had a plan to take out isis that he would not reveal. Tonight, trump now revealing what his first step would be, if elected. But about that secret plan . Abcs Jonathan Karl on the Trump Campaign tonight. Reporter today, donald trump rolled out plans for a massive, military. Peace through strength. Reporter trump was borrowing the phrase made famous by ronald reagan. And to maintain that peace requires strength. Reporter but how would trump use the beefed up military to fight isis . I know more about isis than the generals do, believe me. Reporter for more than a year, hes said he has a secret plan. There is a method of defeating them quickly and effectively and having total i dont want the enemy to know what im going to do. All i can tell you is that it is a foolproof way of winning. Reporter now, he says the plan is to ask for a plan. Immediately after taking office, i will ask my generals to present to me a plan within 30 days to defeat and destroy isis. Reporter clinton says trump just doesnt know what hes talking about. He says he has a secret plan to defeat isis, but the secret is, he has no plan. Reporter and in a new ad, a proclinton superpac uses trumps own words to portray him as dangerous. Im really good at war. I love war, in a certain way. Including with nukes. Reporter today, trump used that very line of attack against clinton, pointing to, among other things, her support for the iraq war. Shes trigger happy, and very unstable, whether we like it or not. Thats whats going on. Clinton do about isis . Shes ruled out sending in ground troops, saying essentially, that she would continue president obamas strategy. In their joint interview with david muir, clintons running mate put the choice on National Security in stark terms. I have a son in the military who is deployed overseas right now. I completely count and trust Hillary Clinton to be a great commander in chief, and to make the right decisions for the country. And the prospect of donald trump making those decisions about the life of my kid and millions of people who serve scares me to death. And Jonathan Karl with us live tonight here in new york. And jon, on this commander in chief question, Hillary Clinton receiving a rare endorsement tonight. Reporter david, shes won the endorsement of a newspaper that almost never endorses democrats. The Dallas Morning News endorsing Hillary Clinton, the First Time Since world war ii that the newspaper has endorsed a democratic president ial candidate. And they cite National Security, warts, she is the candidate more likely to keep our nation safe. Jon karl with the endorsement from texas there. Jon, thank you. And you heard donald trump calling Hillary Clinton unstable today. It was last night here, we asked him about what he said about Hillary Clintons appearance, that she doesnt look president ial. Tonight, someone now coming to clintons defense. Her daughter. Abcs cecilia vega on the clinton campaign. Reporter tonight, Chelsea Clinton jumping headon into the political fray, going directly after donald trump for telling david Hillary Clinton doesnt look president ial. Youve often talked about Hillary Clintons stamina. Right. Youve even said she doesnt look president ial. I really do believe that, yes. What do you mean by that . Well, i just dont think she has a president ial look and you need a president ial look. You have to get the job done. I think if she went to mexico, she would have had a total failure. We had a big success. But when you talk about her not looking president ial, are you talking about aesthetics here . Im talking about hey, by me that are horrible. Reporter asked about it today in pennsylvania, Chelsea Clinton did not hold back. I would hope that everyone could see that as the sad, misogynistic, sexist rhetoric that id hoped we moved beyond in the 21st century, certainly in 2016. Reporter a new mom, her last big political splash at the democratic convention. And our next president , Hillary Clinton. Reporter Hillary Clinton watching proudly backstage as her daughter introduced her. Now, with 62 days to go, Chelsea Clinton is back on the campaign trail and on the attack. And cecilia vega live with us tonight from charlotte. And cecilia, its not just Chelsea Clinton, youre learning about some others that are throughout hitting the campaign trail for Hillary Clinton. Reporter she is calling in the big guns, david. Also fresh off that big speech at the democratic convention, where many say she stole the show, First Lady Michelle Obama will next week be out campaigning for Hillary Clinton for the very first time. David, the president will be out there next week, too. Cecilia, thank you. And next, to georgia tonight. Two planes colliding in midair, taking three lives. Those planes may have been trying to use the same runway at a small airport where there is no traffic control. And it turns out, there are thousands of other airports just like it. Abcs Steve Osunsami on the investigation tonight. Reporter witnesses say that both single engine planes crashed midair, because they were trying to land at the same time. And theres only one runway at this Regional Airport an hour top one is on top of the other one here at the end of this runway. Three people have lost their lives. Reporter whats left of both planes is seen here, just short of the runway. Authorities say one of them was used to train pilots. Both aircraft were on final approach to land. They came together and they stayed together and came down together to the ground. Reporter this is what they call a nontowered airport, with no one directing traffic. The pilots are on their own. There are 20,000 of these across the country. When two small planes collided midair over rugged terrain in alaska. The cause is still unknown. Investigators believe only one of the planes had equipment that lets pilots track nearby aircraft on a screen similar to whats used by air traffic controllers. Authorities here in georgia say theyre fortunate there was no fire and that the planes didnt collide over homes. David . Steve, thank you. We turn next to late developments from california tonight, a possible break in a cold case after more than 20 years. 19yearold kristin smart vanished. The fbi is now excavating a hillside near the school she was attending, hoping to find her body. And tonight, they are now officially calling it a crime scene. Abcs Kayna Whitworth is in california. Reporter tonight, investigators digging in on this college campus, in a new search for kristin smart, the calpoly student who vanished after a party here two decades ago. Police never found her body. But a fresh look at the case human remaining zeroing in. You want to be here 24 7, working on it, and you want to be able to make that inperson notification that youve found kristin, and thats kind of the end goal. Reporter police have long called this man a person of interest. Paul flores, the last person seen with kristin. The smart family even hiring a private detective to follow him, but flores denied any involvement and was never charged. No physical evidence ever tied him to kristin. We are confident that the person of interest will soon be held accountable for taking her life and harboring her remains. David, investigators say the dogs pinpointed three different locations there behind me, and theyre hoping that they find something before the fall semester starts. David . Kayna whitworth, our thanks to you. And next, to that other cold case solved after more than 25 years. We told you about it last night. 11yearold Jacob Wetterling was abducted in his quiet minneapolis neighborhood back in 1989. It shook the nation. Yesterday, Danny Heinrich and he showed police where he buried him. In all of that time, his mother hoped, but yesterday, the heartbreak took hold and were now hearing from her. I want to say, jacob, im so sorry. Its incredibly painful to know his last days, last hours, last minutes, because for us, jacob was alive until we found until we found him. A mothers grief. And jacobs murderer was sentenced to 20 years in a plea deal. But he could remain in custody well beyond that. Next here this evening, fresh outrage over the 1. 7 billion the u. S. Paid to iran earlier this year. The white house is being accused of paying ransom, because one payment was handed over just as tehran released american prisoners. Well, tonight here, new details of how and why that giant sum of money was delivered to iran. Heres abcs chief Global Affairs correspondent martha raddatz, following the money reporter it was a moment celebrated in the u. S. At the time the release of those four americas held by iran for years. But theres more to this intriguing story. Pallets of cash, 1. 7 billion in foreign currency, shipped to iran on a private plane. Payment for a failed arms deal from the 70s, interest included. The first installment, 400 four americans were freed. The administration denies accusations this was a ransom payment, but has acknowledged the money was used as leverage to ensure the prisoners were released. And so, lets get to martha tonight. Martha, these payments are not illegal, but we didnt know until tonight there were three cash deliveries . Reporter well, they had said they were paying iran, but they had not provided any details, certainly nothing about planeloads of cash, david. Banking relationship. But some republicans on the hill are furious, and trying to get the money back. David . All right, martha, my first time talking with you since it was announced you will moderate one of the debates, and we celebrate that. We look forward to it, martha. Thanks, david. We move onto other news overseas. There are new tensions with russia this evening. The pentagon reporting a dangerous Close Encounter with a russian fighter jet. A u. S. Navy reconnaissance plane was flying in International Air space over the black sea, when the russian jet came within ten feet. A move considered unsafe and unprofessional. The u. S. Crew attempted to make contact, but received no response. There is still much more ahead on world news tonight this wednesday. Americans collecting benefits for injuries they dont have. Its your money. Weve shown you the woman collecting disability, appearing on the price is right. Tonight, our team is back on the case. The man claiming to be disabled caught roller skating, playing football, and how much of your money did Authorities Say he got away with . Also ahead, the mystery of famous in this iconic photo. We have new developments coming in on that 9 11 flag. And then, the spoiler today. Apple unveiling its new iphone, but amazon revealing the big secrets beforehand. The big feature that wont exist. Well be right back. E alzheimern is going to make it happen by funding scientific breakthroughs, advancing public policy, and providing local support to those living with but we wont get there without you. Visit alz. Org to join the fight. With the right steps, 80 of recurrent ischemic strokes could be prevented. And im doing all i can to help prevent another one. A bayer aspirin regimen is one of those steps in helping prevent another stroke. Be sure to talk to your doctor im val, the orange money retirement squirrel from voya. Were putting away acorns. You know, to show the importance of saving for the future. So youre sort of like a Spokes Person . More of a spokes metaphor. Next tonight, to your money. The veteran bilking more than 1. 5 million from the v. A. , claiming to be fully disabled. Pictures showing him running and roller skating. Tonight, hes behind bars, but abcs david wright was oneonone with him before he was sent to prison. Hes still claiming he deserved those taxpayer dollars. Reporter theres Dennis Paulsen arriving at the v. A. In a wheelchair for a checkup. Later, investigators followed him and found he could walk just fine. And play pool. By the time he s caught, he defrauded more than 1. 6 million from the government. Reporter a whopping sum he ripped off from taxpayers. Worker, whose workmans comp claim was undone by an appearance on the price is right. Paulsen was living a double life. He was diagnosed with m. S. , but clearly, he hadnt lost permanent use of his hands and feet as he had claimed. After he was convicted, he sat down with us for an interview. We wouldnt even be discussing this if i went to afghanistan or iraq and got my legs blown off, competing at the invictus games. Lot of vets who would be offended by that. What im saying is, they get looked at as inspiring. But i get looked at like im a fraud . Because you cant see the disease . Reporter tonight, paulsen is behind bars. Disability fraud costs the taxpayers hundreds of millions of dollars a year, and prosecutors say what makes this case unusual is that paulsen got away with it for more than 20 years. David . David wright, thank you. When we come back, apple revealing its new iphone, but secrets with the list it put out this morning . Also, the Football Player making national headlines, protesting the National Anthem. Well, now, nfl commissioner Roger Goodell is breaking his silence. What hesaying about this, in a moment. To lie down. I refuse to lie down. Why suffer . Sta