Sources telling cnn at this hour a Historic Nuclear Deal with iran is, quote unquote imminent. Now we are standing by for word from vienna. Negotiators are literally working through the night. At this time negotiations have gone on for more than a year deadline after deadline has been missed. The stakes are huge because if the United States doesnt get what it needs, the president of the United States barack obama, has said iran could build a nuclear bomb within months. Elise, today there was going to be a deal. Then there was no deal. And now imminent is what youre hearing . Reporter thats right, erin. A Major Development happening right now. Diplomats tell me world powers are putting the finishing touches on a Historic Nuclear Agreement with iran. They say an announcement is imminent. It could be anytime certainly within the next few hours. Now, of course no deal is final until its announced. Theyre still meeting this hour trying to clear up lastminute wording of the text. Some issues related to substance but these were described to me as crossing ts and dotting is. As you said, we started the day expecting that announcement the talks hit a lastminute snag. Negotiators buckled down turned it around and finally these 18 days of marathon negotiations this final round, drama, the screaming, the rising and falling hopes all coming to an end. Today the Iranian Foreign minister told reporters negotiators are overworked exhausted. They want to get this done and it looks like when the world wakes up tomorrow erin there will be a nuclear deal with iran. Its going to be a pretty incredible thing. The biggest Foreign Policy deal for the United States in more than a generation. All right, elise, thank you very much. As i said were waiting. We have our reporters on the ground in vienna. The minute we get news on this, well bring it to you with great historical significance. Also tonight we are following another quickly developing story. A massive man hunt for one of the most brutal drug dealers in history. After the death of osama bin laden, he became the most wanted man in the world. Number one. His name is guzman known as el chapo. In an incredible escape he successfully broke out of one of the most secure prisons in mexico. Officials say if hes not found in the next few hours they may never see him again. Here is what we know about guzmans daring escape. He crawled through a hole in his shower. As you can see this animation here down that ladder to a tunnel a mile long tunnel. This tunnel lit. This tunnel ventilated professionally built just for him. This wasnt what happened in upstate new york. This was a professionally built tunnel to this guys door. Guzman has allegedly killed countless people is responsible for at least a quarter of the Illegal Drugs in the United States. Nick valencia is right outside the prison with our coverage. Nick, this is one of the most incredible stories of escape in history. Reporter it is certainly and a wild one to boot. It seems as though this escape was planned not just in plain view of the federal police and prison officials but also in plain view of the military. Its an escape thats led to the worlds most notorious drug trafficker back on the loose living life a free man. It may have been the most expensive and elaborate prison escape ever. 8 00 saturday night, guzman the most notorious drug lord takes his medication at this maximum security prison just 50 miles west of mexico city the last time guards see him. After stepping into a shower, el chapo enters a hole in the wall. There a ladder takes him 30 feet below ground to a tunnel almost a mile long and five and a half feet high high enough for the man nicknamed el chapo, spanish for shorty to stand tall. It runs under this des ratolate countryside, and to this home still under construction. The daring escape for what they call our bin laden, marks the second prison break. Local farmers fear the worst. Are you scared now that el chapo has escaped . His 2001 escape was much simpler. For a reported 2. 5 million in bribes he was smuggled out hiding in a laundry cart. During the next 13 years on the run his legend grew whereabouts said to be an open secret even to mexican authorities. Millions of mexicans believe him to be a robinhood figure. One story tells of him collecting all the cell phones in a restaurant for his safety. Then paying everyones bills. Authorities say the real el chapo is a billionaire and in reality a ruthless killer and one of the men behind the drug war that has left tens of thousands of his countrymen dead. These are people that kill journalists, Corrections Officers and then not just that person but every member of their family. Their parents, their cousin their children and oftentimes horrific deaths i mean dipping their bodies in acid peeling their skin dismembering them. Reporter Officials Say el chapo is responsible for about 25 of all the drugs entering the u. S. Including much of the marijuana, cocaine and heroin traffic. He has been declared public enemy number one, the man supplying 80 of the drugs on the city streets. They tracked him to a no frills condo using body heat scanners determining that everyone inside was asleep. They found the guzman their beauty queen wife their two twins sleeping nearby. The mans most wanted man surrendered without a shot fired. Construction on the rural home where el chapo is said to have emerged ended in december. They continued to see individuals in that area which drew their suspicions on sundays when people dont typically work. Their take on this this has been well coordinated and planned out for months. Erin . No expense spared. I want to bring in the former chief of operations for the Drug Enforcement administration he spent years tracking, gathering evidence on el chapo, and the former u. S. Marshal. You said guzman wrote the book on terror. We heard nick report this is a man who has dismembered people tom fuentes said dismembering people, dipping their bodies in acid. Just how dangerous is he . He is the worlds most dangerous and notorious crime leader. My friend tom fuentes hit the nail on the head. He was very accurate in all of the information that he provided. To take it a bit further, this guys responsible for not hundreds but thousands of uber gruesome beheadings dismemberments acid baths, if you will while those victims are oftentimes still alive. Its a slow horrific death. So this guy not only is he extraordinarily powerful he is a sadistic narcissist like the world has never seen. And he happens to have an enormous amount of money which makes him, i would say, the most dangerous man in the world today. Incredible. He was number two after bin laden, for those watching on the fbi most wanted list. Bin laden was killed. He is now number one. Arthur you heard mike describe him, sadistic nars cystic beheading thousands of people acid baths. According to forbes, one of the richest out there. Where could he be . Erin if things were a little different, he would be classified as a war criminal. When you go through that type of menu of things that hes actually done to people those are war crimes. This is stuff you hear about. In world war ii you heard about during the balkans war. Where could he be . If hes up in the mountains in his mountain stronghold its going to take a Major Military operation to get him out of there. And if hes looking to go to another country, well probably never get him out that have location either. So i dont know how this is going to work out, but when you look at a Standard International fugitive investigation, you throw the book out on this one and basically go with what youve got and hopefully mexico has the political will to do something about this. This tunnel was not this tunnel was built custom for him, 5 1 2 feet tall ventilated. It sounds sort of like you know a stateoftheart type of thing, this tunnel that was built for him, and they came in obviously, they put a ladder straight up to his shower. I mean it was literally doortodoor. Hey, listen erin you cant make this stuff up. At the heart of all of this is corruption. If anyone thinks for a moment that he didnt possess the keys to the prison before he ever walked through the door theyre absolutely wrong. You think internal guards, et cetera there were a lot of people helping him . Listen many of them have been arrested already. You dont pull something off as elaborate as this with absolute pinpoint accuracy as you said. They literally tunneled up into his cell from what i understand and from what sources report. Its incredible. Arthur youre saying it could have gone further than that. Talk about having plan a, b, c, and d. Even having a private jet waiting for him . When you have that much money you have a lot of things at your fingertips. Obviously the size of his organization, you just look at the planning i mean he has a history of being the tunnel king. Hes built at least seven or eight major tunnels from mexico into the Southern California area to move drugs. When he was arrested in february of 2014 he was riding or moving around between seven or eight houses in an elaborate tunnel area. It doesnt take a long reach to think that maybe hes got the capability of doing this again. Thats exactly what he did. Mike are they going to find him . The u. S. Is not yet involved. The u. S. Found him last time. Is the u. S. Even capable . Listen one thing for sure erin with every event like this meaning his last apprehension he has the very best attorneys money can buy. He has Security Experts that can match anything our country or any other country around the world has to offer and, you know rest assured they dissected every piece of Law Enforcement to join operation back in february 2014 that led to his arrest and theyre not going to make the same mistakes twice. This guy is going to be even more difficult than the last time. I think art and tom earlier would agree with me the first 72 hours are extraordinarily important here and if they dont get their hands on him by then i dont know. We may never see the guy again. Mike art, thanks to both of you. And next thank you. He willel chapos responsible for supplying 8 0 of the drugs in some cities. The most violent and powerful cartel on the planet. Plus donald trump says he wants the fbi to investigate a death threat against him that he says may have come from el chapo himself. And union buster and Wisconsin Governor Scott Walker joining the crowd running for president. Can he overcome the trump juggernaut . [music] jackies heart attack didnt come with a warning. Today her doctor has her on a bayer aspirin regimen to help reduce the risk of another one. If youve had a heart attack be sure to talk to your doctor before you begin an aspirin regimen. When youre not confident you have complete visibility into your business, it can quickly become the only thing you think about. Thats where at t can help. At ts Innovative Solutions connect machines and people. To keep your internet of things insync, in realtime. Leaving you free to focus on what matters most. I am totally blind. And sometimes i struggle to sleep at night, and stay awake during the day. This is called non24. Learn more by calling 8448242424. Or visit your24info. Com. When youre living with diabetes steady is exciting. Only glucerna has carbsteady clinically proven to help minimize blood sugar spikes. So you stay steady ahead. Americas biggest drug lord escaped from prison on the loose tonight. The clock ticking on an International Manhunt for joaquin guzman. El chapo, as hes called. Before hes back on top of his massive drug empire that slice 80 of the drugs in some u. S. Cities. Jean casarez is out front. Reporter known as one of the worlds most notorious drug kingpins an allout manhunt in mexico now ongoing for Joaquin El Chapo guzman and his organizations influence is strong. According to Law Enforcement it stretches far into the United States. This video from 2013 shows a tunnel allegedly built by the cartel from tijuana to san diego, one of several discovered since 2010 used for smuggling Illegal Drugs to sell on american streets. According to the u. S. Immigration and customs enforcement, authorities seized 8 tons of marijuana and 325 pounds of cocaine through that tunnel. We warned the cartels directly if you build them were going to find them and when we find them well destroy them. Reporter that isnt stopping the cartel. The department of justice describes it as one of the worlds most prolific violent, and powerful drug cartels stretching their illegal Business Operations to states all over the country. Mexican cartels have a presence in more than 1,200 u. S. Cities. They get in through multiple different channels. They get in through small planes. They get in through tunnels underneath the border. They get in through cargo ships. Its very difficult to actually stop the flow of illegal substances into a country when demand is so high for it. Reporter even as el chapo sat in prison drugs still flowed into the u. S. , 50 million worth of heroin was seized in new york and that was just in may. It was the largest d. E. A. Heroin seizure. In 2014 el chapo alone was responsible for 25 of the Illegal Drugs entering the United States which primarily comes through a porous mexican border. It tends to be smaller organizations at the local level that receive the drugs and then distribute them and then send back the profits to mexico. And, jean who exactly does the cartel work with in the u. S. . Right, the associates. A lot of people getting a lot of money. Local gangs and local criminal organizations, so that can only increase the violence and crime in the United States. The san diego case we talked about in the piece, 60 people were indicted and theyre either members or associates some United States citizens some legally, some illegally here in the United States. Wow. Obviously an incredibly extensive organization. Extensive and continuing to grow whether hes on the run or whether hes in prison. All right, jean, thank you very much. And i want to go straight now to michael out front mo investigated guzman from inside prison for the dea. You predicted guzman would be in charge of its cartel 48 hours after his escape. Thats basically right now, tonight. Thats correct. El chapo guzman has maintained control of his drug organization. When he went to prison he left one of his primary lieutenants, an individual by to take charge of the cartel, but both individuals are very Close Friends so he probably has already assumed that total control of the cartel as we speak. Wow. As we speak. And you say his cartel operates a lot like, frankly, isis. And what do you mean when you say that . The cartel believes in controlling territory because territory translates into money and power. They have wages against rival cartels. When we try to understand he is the most wanted man on the fbi list bin laden and then el chapo. Now its number one el chapo. Weve seen it explode. How much of the heroin in the United States is coming from el chapo . I would venture to say that the heroin epidemic here in the United States is as a result of the trafficking of heroin into the country by the sinaloa cartel. They traffic methamphetamine, heroin and marijuana. Their cash commodity is cocaine. Thank you very much michael, we appreciate it. You know more about that guy than anyone else. And republican president ial candidate donald trump has decided to use el chapos escape in his campaign. Hes asking the fbi to investigate Death Threats he says he has received from el chapo himself. Athena jones is out front. Reporter the prison break of Mexican Cartel head Joaquin El Chapo guzman is a talking point of donald trump. He says they used the border unimpeded for the drug trade. That sparked what appeared to be a threat directed at trump supposedly from el chapos twitter account. Trump alerted the fbi to the tweet and said you cant be intimidated. The silent majority is back. Reporter the exchange comes on the heels of trumps weekend in phoenix where thousands came to listen to his tough talk on stopping illegal immigration. We charge mexico 100,000 for every person they send over. Reporter he said u. S. Leaders failed to address the problem. I respect mexico greatly as a country, but the problem we have is that their leaders are much smarter, sharper, and more cunning than our leaders, and theyre killing us at the border and theyre killing us in trade. Reporter his remarks interrupted by protesters. Usa usa i wonder if the Mexican Government sent them over here. I think so. Reporter he kept the focus on crimes committed by those in the country illegally. A man whose son was killed by an illegal immigrant. Hes the only one talking about saving our country. Reporter that comes after trump seized on the shooting death of 32yearold kath lynn steinle allegedly by an undocumented immigrant. Were housing people from all over the world that other countries dont want. Theyre sending criminals to us and were putting those criminals in jail oftentimes after theyve killed somebody or hurt somebody. Reporter and one more thing, a new poll out today by Monmouth University shows nearly 4 in 10 Republican Voters feel that Donald Trumps campaign is more about getting publicity for himself rather than making a serious run for the white house. Erin . Athena thank you very much. Next scott walker announcing hes running for president. On the same night a new poll shows donald trump surging. Can he break thro