Than 20 feet underground for hours. The terrifying ordeal brings an entire community together. What the rescuers promised that brave little boy. And we do say good morning, america. Feels like the first day of school. It does. It does. And its great to start with this happy ending in mississippi, the lucky little boy rescued after falling in that hole. Also this morning, we have a big breaking story out of the vatican. There is a live look right now. The pope with a major announcement about marriage that could affect millions of people. Making it much easier to remarry in the church. Were going to get to that. We begin with sizzling temperatures on both coasts. A smothering heat wave in the east. Temperatures topping 100 in parts of california. Lets get right to ginger. No one is getting out of this really unless youre in the Northern Plains so baking and broiling, the heat and humidity are on. Well see aboveaverage temperatures, some 10 to even 20 degrees. From dallas that could tie a record today, to new york city. There are schools closed in connecticut. Beaches staying open. Summer is just saying, hey, were extending ourselves especially in the southwest too. Heat advisories, excessive heat warnings all around the los angeles valleys and the difference out there is, it stays with us for the next three days. Look at sacramento. At least 106 by the end of the week. This is a long period of heat out west and talk more about it coming up. In the meantime, ginger, well get to the breaking news from the vatican. Pope francis announcing another big change this morning, making it easier for the worlds more than 1 billion catholics to annul their marriages. The latest sign the pope is pushing the church to be more welcoming. And abcs linsey davis joins us with the details. Good morning, linsey. Reporter good morning, robin. Thats right, just moments ago the vatican announcing one of pope francis most striking reforms to date, one that will impact millions of catholics around the world. This morning, another gamechanging announcement from the vatican. Pope francis weighing in on marriage, streamlining the process of annulment for catholic couples making the often long and expensive process more accessible. Dropping the churchs automatic appeal when couples apply. This just one of the popes many groundbreaking recent reforms in the church. Just last week saying hell allow priests to absolve women who have had abortions if the women ask for forgiveness during the upcoming holy year. Until now abortion was considered a grave sin. The pope saying he understands the pressures many women feel, something we saw firsthand at our own town square discussion when he heard from single mother rosemary. I made some mistakes as a person, as a mother, i felt guilty at times and ashamed. Rosemary reporter the pope applauding her for having her daughters and persevering. Bringing tears to the womans eyes. And that change is expected to go into effect in december when the churchs jubilee year of mercy begins and, of course, the peoples pope expected to make many more headlines on his trip to the u. S. Later this month. George . That is coming up. Okay, linsey. Thanks very much. The race for president. Your voice, your vote, and the campaign heating up on the democratic side with the Vice President joe biden hustling like a candidate at a holiday parade in pittsburgh. Hillary clinton trying to reboot after a tough summer. And Bernie Sanders climbing in the key states. Jon karl tracking the moves. Good morning,jon. Reporter good morning, george. The Fall Campaign is here and for all the talk about republicans, it is now clear there is going to be a hardfought race for the democratic president ial nomination, as well. Run, joe biden, run reporter joe biden sure looked like a candidate as he ran along a labor day parade route in pittsburgh, shaking hands, kissing babies, and maybe even dropping an unintentional hint in a speech to union workers. Back in delaware if you make someone stand on a hard floor for more than 15 minutes you lose all their votes. I dont want to lose your i dont want to lose your friendship. Reporter as some in the crowd called out for biden to run, he offered this response. You gotta talk to my wife about that. [ laughter ] ive got to talk to my wife about that. [ laughter ] right here, guys. Reporter unable to take anything for granted i need ya. Reporter Hillary Clinton. She crisscrossed iowa for two labor day picnics aiming her fire at republicans. You listen to those 17 on the other side, you hear them. Their answer to everything is cut taxes on the wealthy. Get out of the way of corporations. And let them do whatever they please. Reporter but the once prohibitive frontrunner is looking more and more vulnerable. Bernie sanders continues to gain ground. Hes now up by 9 points in New Hampshire, his widest lead yet. Sanders frontrunner status in New Hampshire was easy to see as he worked the crowds at a labor day parade in milford. Democrats here are eating up his populist message. The American People are saying, enough is enough. We need an economy for working families, not just for billionaires. [ cheers and applause ] reporter Hillary Clinton is looking to regain momentum in a very different venue today. Shes going to be taping the Ellen Degeneres show and the Clinton Campaign is about to start deploying bill clinton as well, beginning with some fund raisers next week. Lots of changes after this labor day as they go into the new phase after labor day, hillary doing more interviews, as well. But shes drawing a line on that email controversy. Reporter she absolutely is. She says no, she will not apologize. Essentially because she has nothing to apologize for. Hillary clinton in an interview with the Associated Press insisting that everything she did with her email at the state department was permitted by state department rules. Obviously there are some that hotly dispute that. Okay, jon karl, thanks very much. David muir interviews Hillary Clinton today. Thats coming up on world news. All right, george, now to the humanitarian crisis in europe. The biggest refugee crisis since world war ii, violence breaking out overnight as people boarded boats to leave greece. And more people arriving there right now. The Obama Administration is now considering new ways to help the hashtag openheartsus, urging americans to take in some of the displaced. Abcs dan harris is in greece where thousands have set up camp. Good morning, dan. Reporter hey, robin, good morning. Im standing in a port on a beautiful greek island, a place that would normally be filled with happy, highend tourists. But its today crammed with thousands of desperate refugees. These people have been stuck here for days. Theres been mounting tension, even violence. But now, the logjam appears to be breaking. Overnight we witnessed throngs of refugees clamoring to board a boat. Finally heading for the european mainland after days of being stranded here. This really is such a combustible mix of hope and chaos. So many people lined up clamoring to get on board this boat. An estimated 15,000 to 25,000 refugees have been marooned on this island. They pay smugglers to bring them on rickety, dangerous boats from turkey and then hope to move on to the greek mainland up through macedonia, serbia, hungary and austria and finally to germany. Many traveling even further, all the way to france and great britain. But local officials here on this island of 85,000 people simply have not been able to process them all. We met this mother desperate to get her son to germany for medical care. So much misery here. Everybody has a story. At times, the anger here has boiled over. But overnight a new plan, officials setting up a Processing Center on this soccer field, which they say will run 24 hours a day until they can decongest this island. And just look at the gratitude when that mom we met finally gets her papers. Thank you, thank you, thank you. Reporter and this morning, more refugees are boarding more boats here in the port. The process appears to be going more smoothly at this point but bear in mind this is just one more step in what remains a long and arduous journey ahead for these people. George . It sure does. Dan harris, thanks. The United States taking only about 1400 of those refugees. President obama considering opening it up a little bit right now. We move on and get the latest on the kentucky county clerk jailed for refusing to issue marriage licenses to samesex couples. Attorneys for kim davis filed a request to free her. This afternoon republican president ial candidate Mike Huckabee leads a prayer rally outside the jail. Abcs alex perez is on the scene in grayson, kentucky, good morning, alex. Reporter hey, good morning, george. Kim davis Attorney Says shes in good spirits. Mike huckabee is set to visit her in jail and lead that rally for her later this afternoon. This morning attorneys for embattled county Clerk Kim Davis are fighting to get her out of jail, filing an emergency request monday, asking she be released while she appeals and fights her case in the courts. Davis, now behind bars six days after a federal judge found her in contempt of court for refusing to issue samesex couples marriage licenses. Under Whose Authority are you not issuing licenses . Under gods authority. Reporter overnight her attorney saying in a statement davis exudes gentleness and is at peace. And her spirits remain high, after visiting her in jail. And now gop president ial candidate Mike Huckabee set to hold a rally this afternoon supporting davis, defending the county clerk on this week with george. Doesnt she have the duty to obey a legal order from the court . You obey it if its right. When is it liberals get to choose which laws they support but a county clerk in kentucky who, acting on her christian faith, is criminalized, jailed without bail, because she acted on her conscience and according to the only law that is in front of her. Thats what the bible says reporter over the weekend hundreds of davis supporters taking to the streets. But with davis in a jail cell, her deputy clerks on friday began issuing gay couples marriage licenses. Feels like im a person. Reporter and davis Attorney Says she spends a lot of her time in jail reading the bible and that at this point she has no plans to back down. Robin . All right, alex, thank you. Now to a new case of police being targeted. This time in colorado. Police officers coming under fire after a threatening phone call and abcs Pierre Thomas has the latest and joins us from washington. Good morning, pierre. Reporter good morning, robin. Today denver area police on alert after a threatening phone call to Law Enforcement and gunfire targeting police soon after. Three shots fired. Were taking fire from the north. Fire from the north. Reporter 9 45 sunday shots reported fired at police in aurora, colorado. Just send everybody. Were taking fire. Reporter those shots only four hours after a threatening call came in via 911 saying police were going to be executed. This Police Dispatcher warning officers in the area. Party stating he was going to shoot any Police Officer that he saw by themselves. Reporter its unclear if the shooting is in fact related to the earlier 911 call. But authorities here are taking no chances. Especially as the colorado scare came just hours after a policeman in las vegas was wounded ambushstyle by a man firing at him while the officer was sitting inside his squad car. Police around the country on edge after a recent spate of deadly confrontations. August 28th, houston, an officer executed, shot repeatedly in the back of the head as he pumped gas. And four days later a Police Officer in a northern chicago suburb was fatally shot while on routine patrol. Three suspects still at large. On monday, Police LieutenantJoe Gliniewicz mourned by thousands of police and citizens. The irony here is that Fatal Police Shootings are down 21 this year compared to last. But those who lost loved ones in the line of duty will find no comfort in those statistics. And Law Enforcement is deeply concerned. Robin . Youre right. No comfort in that at all. All right, pierre, thank you. Now amy has the mornings other top stroirs starting with new concerns about the largest wildfire in californias history . Thats right, robin. More evacuations ordereds a the rough fire, as its called, grows even bigger east of fresno. Another 10,000 acres were consumed by the flames in just one day. Nearly 150 square miles have burned, most of them in the Sierra National forest. The fire sparked more than a month ago by lightning. Nearly 2,000 fire personnel have been deployed to fight this fire and its only about 30 contained. Well, four more people have been charged in connection with the escape of one of the most wanted men in the world, el chapo, the notorious drug lord. Two of those charged are members of mexicos intelligence agency. The other two are prison guards. They failed to alert authorities that el chapo had escaped. A massive drug bust on a plane heading to mexico, a police dog sniffed out nearly two tons of cocaine in a shipment of printer cartridges leaving colombia. The cocaine had actually been dyed black and disguised as printer toner. We learned overnight that tv star Martin Milner has died. He became a household name in the 60s starring in route 66, a drama about two single guys trying to find themselves. Younger audiences will remember him as a Police Officer in adam12. He died of heart failure. He was 83. Well, an unexpected guest interrupted these tourists having lunch during a safari in zimbabwe. Whoa. They tried to stay still but the elephant crashes the party taking them out with its tusks. No one seriously injured. Look at that. The elephant was not angry. He was just likely trying to feed on some nearby trees and didnt like any competition. A different kind of interruption at this Football Game in canada. A rabbit getting loose on the field and flying past the players, and taking, look at this, a giant leap into the end zone. Wow. Touchdown followed by a few victory laps before the rabbit finally ran off the field. Poor fella. Very aerobic. And finally, archaeologists have discovered whats being called stonehenge on steroids. Take a look at an artists rendering of what it actually looks like, a giant stone monument in the shape of a c found two miles from stonehenge itself but five times larger with at least 100 stones. Theyve been buried, hidden from the world for thousands of years. One researcher said everything written previously about stonehenge will need to be rewritten since not a lot is known, that shouldnt be too hard. All jokes aside this is a serious discovery. Thats huge. It is, it is. Wow. Thats very cool. Good save there. You were thinking of your teachers there, im sure. I know. Thank you, amy. Lets take a look at the office of Walter Palmer, the american dentist reviled for killing cecil the lion. Hes going back to work this morning. And were back in 30 seconds with the latest on his case. Walter palmer is responding to the global backlash for killing cecil the lion. Getting back to work in bloomington. Abcs ryan smith is there. Good morning, ryan. Reporter good morning to you, george. Its been six weeks since dr. Walter palmer walked through the doors of his dental practice. But this morning, he walked in to see this. Protesters holding signs, chanting about his extradition. Police on the premises making sure hes safe. And dr. Palmer himself hoping to get back to his normal life. This morning, dr. Walter palmer back to work. Passing the protesters. Its his first day back at work. Two months after the killing of cecil the lion. And weeks after protesters lined the streets in front of his dental practice, virtually shutting it down. Its very ridiculous. I dont think he should come back and practice. Reporter locals monday railing against the man some called the most hated in the world for killing cecil, one of africas most famous lions during a hunting trip in july. I think he should probably leave town would be a better idea. Reporter palmer staying out of the public eye until now. Speaking to the Minneapolis Star Tribune and Associated Press, he says im a health professional. I need to get back to my staff and my patients, and they want me back. But not addressing details about the hunt. Only referring back to his original statement after the incident which read in part i relied on the expertise of my local professional guides to ensure a legal hunt. He mentioned hes been concerned about the safety of his family, he said his wife and his daughter in particular. Reporter now palmer hoping to return to his way of life. Hes had to keep a very low profile and i think he just feels like he wants to get back into some sense of normalcy. Reporter dr. Palmer has not been charged with any crime. But his guide, facing a judge later this month on poaching charges. Police, still keeping a presence in the area. Saying to us recently in a press conference that they are not, at this point, concerned for dr. Palmers safety. His hope to return for a normal life not going the happen just yet as you can see from behind me. Thank you, ryan. So much ahead this Tuesday Morning here on Good Morning America. That dentist that was murdered. A woman gunned down in her apartment garage. New details about the suspect in custody. And another could be on the loose. The investigation right now. Caught on camera. Those two High School Football