Family of Steven Sotloff sends a message directly to isis. Where is your mercy. And president obama says russia threw out the law book when it comes to ukraine. And how two brothers were freed from prison. One was even on death row. How the victims family is responding. Hello, and welcome to our viewers in the United States and around the world. Im max foster. The family of Steven Sotloff says isis militants have violated the rules of islam. They posted a video of sotloff being beheaded. A spokesman for the sotloff family addressed the media, speaking in arabic and asking al baghdady, where is your mercy. Translator you talk about the koran. Fight those who fight you and do not transgress. I do not have a sword in my hand, and im ready for your answer. Meanwhile, the mother of james foley is offering her comfort to the sotloff family. I would hope that their deaths might not be in vain, that they might awaken the world, that we must act as a unified world. For peace and for goodness and just work together. Well, u. S. President obama says his objective is clear, to degrade isis so its no longer a threat to the middle east or the United States. He spoke on wednesday after meeting with leaders in estonia. Senior White House Correspondent jim acosta reports. Reporter sporesponding to cs to get tough on isis our reach is long and justice will be served. Reporter a message echoed by Vice President joe biden. We will follow them to the gates of hell until they are brought to justice, because hell is where they will reside reporter the president declared at a News Conference in estonia that he wants to wipe out the terror group. Our goal is clear, to destroy isil so its not just a threat to iraq but to the region and to the United States. Reporter then just a few breaths later, the president seemed to soften that goal. We continue to shrink isils sphere of influence, its effectiveness, its financing, its military capabilities to the point where it is a manageable problem. Reporter reporters were quickly told that that was only an acknowledgement that remnants of a smaller isis could still pose a future threat. It was mainly an attempt to cheap up the president s remarks. We dont have a strategy yet. Reporter after he admitted he didnt have a strategy. It is very important from my perspective that when we send our pilots in to do a job that weigh know that that is a mission thats going to work. Reporter pivoting to the crisis in ukraine, the president tried to reassure the smaller states of lithuania and latvia. You will never lose it again. Reporter in a veiled reference to world war two, the president made it clear hes not buying moscows denials. The aggression evoke dark tactics from europes past that ought to be assigned to a distant history. Reporter to hammer that point, he met with u. S. Forces who will be stepping up exercises in the region. Thanks to all of you for accepting forward, for putting on a uniform, for serving in this mission which is so vital to the security of our nations. Well, nato members are arriving now. Obama arrived last night. It wasnt that long ago when a former defense secretary of state reported he took crossword puzzles. There was an op ed calling for Stronger Alliance reading in part, we meet in a time when the world is facing dangerous and evolving challenges. To the east, rush twra has ripped up the rule book. Do keep with cnn because our Nick Robertson will be speaking with David Cameron later this hour. We will bring you that interview live. This summit in wales is one of the most closely watched. They need to ratchet up defense spending because russia already has. Reporter over the last five years, russia has increased its defense spending by 50 while on average, nato allies have decreased defense spending by 0 , and this is simply not sustainable. Russias illegal actions in ukraine are a wake up call, and its time now to turn the corner, stop the cuts and gradually increase defense investments. Nato member france is suspending delivery of two warships to russia. The prospects for the ceasefire, ukrainian president poroshenko said progress was being made just about the same time russian president putin unveiled a peace plan of his own. We have more from kiev. You are dealing with all sorts of different messages yesterday, resa. Whats the conclusion about what was reached yesterday . Reporter the confusion was over a phone conversation yesterday between president putin and the ukrainian president poroshenko. Initially there were reports that the two had agreed to establish a ceasefire which would have been good news, however, moscow quickly dismissed those reports, indicating that russia was not a party to this conflict and therefore mr. Putin was not authorized to indicate any kind of ceasefire. Then the two sides announced that they had agreed to a framework, the conditions under which a ceasefire would take place. And those conditions included the end of military operations in southeast ukraine, the pulling out of troops, the establishing of a humanitarian corridor where refugees and victims could get out and humanitarian aid could come in and international monitors put in place to ensure that these conditions were being met. Yesterday with poroshenko with a positive message saying hes hopeful these conditions can be put in place as early as tomorrow when all sides of this conflict once again meet in belarus. However, late yesterday, Prime Minister saying this perhaps theres a breakthrough for a ceasefire, and now all eyes on belarus tomorrow to see what happens there. And also, what about whats going on in wales with the nato summit . How crucial is that to whats going on in ukraine . Reporter i think its critical. I think what kiev wants to hear and theyre already hearing it, is that they have the fullbacking of nato and western capitals. Theyre asking for support. And seemingly theyre getting it. Nato, over the past couple days, has explicitly said theyre considering expanding bases, capacity here in the region. Theyre also going to hold annual exercises in western ukraine that were initially canceled in july. Theyre going to hold them later in september, however, this is important. Many are going to see this as provocation to moscow. Remember, moscows ultimate overarching concern is natos expansion over their borders. Theyre concerned nato is encoaching on their zone of security. Thats why theyre saying nato expansion could backfire. Even so, it looks like its happening. Reza, thank you very much indeed. An interview with David Cameron is coming up. His thoughts on isis and the crisis in ukraine. And as ebola affects another doctor, we hear from some of the people being treated for the virus. Q. Now, according to the World Health Organization more than. Three and a half thousand people have been infected by the ebola virus. Dr. Sacra was not treating patients for ebola but delivering babies. One bright spot, a british doctor, William Pooley has been discharged from the hospital. That was the day before Nancy Writebol spoke about her your deal ordeal for the first time. Less than a month later, she spoke to Anderson Cooper about her ordeal. At what point did you start to feel something . I had gone to the Isolation Unit on the 22nd of july. I went home, and i called one of our doctors, and said, you know what, im not really feeling very good. I think i have malaria. On saturday, the doctors came in. They said nancy, we know you dont have ebola, but were just going to run the test anyway. Youre not feeling better. You still have a fever, and we just want to make sure. We want to set everybodys mind at ease. Until that moment, did you think it could possibly be ebola . No. It didnt worry me at all. Even though you were working in a unit of ebola patients . Yeah. And i mean, even now, i look back, and i dont really know how i got it. They said you know what, were going to test you for ebola. Uhhuh. So i said okay. And so they drew the blood, of course, and david came home pretty quickly, and he came into the room, and he said, nancy, i need to tell you some things. I said okay. And he said, kent has ebola, and i just, i was just sick. Dr. Brantley. Yeah. When david told me. And then after i kind of regrouped from that, and nancy, you do, too. And i remember, i could hear people at the front door. And i remember getting up and i remember that daifd wanted to put his arms around me, and of course i had fever, and i just said dont, dont. I dont want to you touch me, because, you know, touching who knows. And so i said. That must have been so hard. It was, and i said, but david, its going to be okay. Its going to be okay. Even though you had seen people die. I mean, you knew, its not a as you said, its a horrific death. People bleed out. Its, you had no doubt you were survive. No. I didnt have any. He went on to ask if shed go back to liberia. You can listen to her response by going to our web page. After decades in prison, two u. S. Brothers are free. Coming up, youll hear from one of them, plus the family of the girl they were once convicted of killing. And David Cameron will speak live here on cnn. Hiring too much tie and not enough time in my kitchen. [ female announcer ] need to hire fast . Go to ziprecruiter. Com and post your job to over 30 of the webs leading job boards with a single click; then simply select the best candidates from one easy to review list. You put up one post and the next day you have all these candidates. Makes my job a lot easier. [ female announcer ] over 100,000 businesses have already used zip recruiter and now you can use zip recruiter for free at a special site for tv viewers; go to ziprecruiter. Com offer5. Two brothers in the United States are free after serving 30 years behind bashes. A court in the United States exonerated henry mccullom and his half brother leon brown. Theyd been convicted of the rape and murder of a 11yearold. But police found dna evidence cleared the men. A lot of joy, rejoicing, happiness and everything, because i was very anxious when they told me this news and stuff. I wanted to get away from this place. No anger in my heart. But i dont like what they did to me and my brother, because they took 30 years away for no reason. Well, the victims family still briefs the brothers had something to do with the murder. They say theyre being forced to relive a nightmare. How do you get over Something Like this . How do you get over it . How . You never forget it. You have nightmares about it. You know, i have nightmares where i cant get to her in time. I feel like im trapped in hell. I feel like im in hell on earth. Well, its not immediately clear if a man whos dna was found will face charges in the murder. Hes serving a life sentence for an unrelated crime. The u. S. Department of justice is launching a review of the Police Department in ferguson, missouri. Thats the midwestern American City where unrest broke out last month after a white officer shot and killed an africanamerican teenager, Officials Say the probe will look at whether Law Enforcement reach federal standards. This investigation is distinct from another federal review, specifically looking at the august 9th shooting to death of 18 year old michael brown. The remnants of Tropical Storm dolly are dumping flooding rains in mexico. Ivan cabrera joins us from the weather center. Flash flooding is going to be an issue today even as this moisture from dolly which made land fall a day and a half ago is still bringing rainfall. So far weve tallied 154 millimeters of rainfall. And still raining heavily. Over the next couple days well continue to see that and then things will wind down. On the western side is a different story. Heres hurricane norbert, torrential rain on the eastern side of norbert. But as it moves off to the north and west, it will leave mexico alone but will impact with baja here, and that is going to be an issue because we are going to be talking about very heavy rain and the potential for flooding here as well as, well, hurricane will get its act together. Its about 100 miles per hour. So close enough to baja where the impacts will be significant and then eventually, likely becoming something post tropical here just to the south of san diego. But the moisture is going to stream up to the north. So you may be getting wet if the next couple days. As far as how much rainfall, additional rainfall, look at cabo san lucas. Thats 4 inches. This area here, concerns here as a result of the topography and the hillsides. We have a potential for flooding but also the mudslide threat as well. So well be watching that closely. In the next half hour well take you to china where the flooding there is also an issue. And well check on the forecast for the u. S. On this thursday. Max . Ivan, thank you very much indeed. Coming up, Prime MinisterDavid Cameron joins us for a live interview as the nato summit gets underway in wales. Plus, al qaeda is back in the news. Where they say they are expanding, a live report just ahe ahead. Welcome back to our viewers in the United States and around the world. Im max foster. In the headlines this hour, ukraine and russia are talking about ways to end the conflict. Russian president putin proposed his open plan which ukraine rejected. But officials meet in belarus on friday. Ahead of the nato summit wales, president obama and David Cameron are blaming russia for the crisis in the ukraine. We will speak to Prime Minister cameron in the next few minutes. The family of Steven Sotloff says Isis Islamists have violated the principle of islam. Investigators are viewing every frame of the video trying to identify the man who beheaded Steven Sotloff. Reporter cnn has learned u. S. Intelligence is doing a forensic examination of the execution videos. Theyre looking at the man and his voice, facial features. It appears to be the same man in the sotloff video. Notice the accent when he utters this phrase. You, obama reporter compare it to a similar phrase any attempt, by you, obama. Reporter british officials had no comment when we asked if identification is imminent. The eyes are key. Theyre going to be looking at the shape, the supposed droop in all these frames. Both on august 19 and september 2. Reporter during the iraqi war, they investigate every beheading video. In these videos, the tilt of the militants head is significant and the way he holds his knife and the way he laces his goods. He doesnt lace them the same way. He lays them up halfway, which is a very sort of sikh for an individual to do. Reporter but is this the man who really executed foley and sotloff . He doesnt think so. In both videos, the moment of death isnt shown. If you look at the videos at the very end, which, where theyre holding up the next hostage, his ands are clean, and his tunic is clean, suggesting he didnt do it. Reporter as horrific as these videos are, analysts say theyre actually a recruiting tool for isis. People with this extreme ideology have an almost pornographic attraction to this. Isis can stand up the United States. Its a force to be reckoned with. Reporter and new information from u. S. Officials about these videos. They say they have determined that the sotloff video was shot separately and later than the foley video. So they were not shot in the same session. Bryan todd, washington. The family of Steven Sotloff says he was the kind of person who always tried to help those less privileged than him. An afe a friend evof the family spoke about what he and sotloffs family has been going through. Were all in a state of shock. This is something weve been dealing with for a year now. Until this actually became a reality, theres no words to really express how any of us feel. The best we can do is be very supporting and loving to each other and try to be there with the immediate family and friends and hopefully well be able to get through this. Well, isis grabbed headlines of late, al qaeda is also on the move. The group has announced the formation of a wing in india. How seriously is the government taking this . Reporter the government in india is taking this very, very seriously. Cnn spoke with the Indian Ministry today, and theyve issued a National Security alert with the alert focussing on some of the states that al sawhat hery mentioned. And those states are in the east and in the north and in the west. All of which were mentioned and have had a history of hindu muslim clashes. I should add that hindu muslim clashes are pretty old in india. Theyve been happening for many, many years. And they are by their nature very different than the kinds of terror that weve seen al qaeda unleash in many parts of the world. Why is al qaeda attracted to india . Reporter there will two main reasons why. On the one hand, india has many muslims, 176 million muslims in india. But when you add in bangladesh and pakistan, that region, the indian sub continent has about half a billion muslims. The indian sub continent is a great area for al qaeda. The other reason, peter bergen told me, cnn security analyst, that isis in iraq and syria has squeezed al qaeda out of the picture, so if many ways this could be seen as a desperate attempt on al qaedas part to be relevant. And thats why theyre looking at southeast asia. And intelligence useful for the government because it can respond while this is being established. How do you think india will respond . Reporter the government is taking this very seriously, but i should add, in indias many, many muslim, cnn reported recently that Indian Muslim