Lets bring in Michael Holmes live in perth, australia, for all the details. Good morning, michael. Reporter good morning to you, kate, from perth in Western Australia. Yes, thats right. Those four pings that were now pretty certain came from the flight recorders well, they havent heard anything since last tuesday nearly a week. And theyve given up hearing more. They now think that the batteries have gone flat and it is time to move in for a new phase. Ray shift in the search for missing Malaysia Airlines flight 370 after three straight days, australian officials announced they will begin searching the seafloor with this underwater vehicle. We havent had a single detection in six days. Its time to go under water. Reporter the crew aboard the australian ship ocean shield will launch the unmanned bluefin 21 to map out the search area using its side scan seasoner technology. It will take the vehicle two hours to dive to the bottom. 16 more hours to search a roughly 16,000 square feet section of the floor. And two hours to the surface. It then takes four hours to download and analyze the Data Collected. Mean each mission will take a complete 24 hours to complete. This will be a slow and painstaking process. Reporter investigators are also testing a two liter sample of oil collected from the sea around the area of the towed pinger locator to see if its connected to the missing jet. Meanwhile, the visual search for floating debris will wind down in the coming days. Officials say the bluefin 21 was to be deployed around 5 00 a. M. Eastern time. Although they cautioned raising hopes that the underwater vehicle would discover the wreckage of flight 370, saying it night not. This is the best lead we have. Reporter and with that su submersible coverage, it is a tedious process. At that pace, it could take six weeks, even up to two months to cover the search area. And also that search for debris, weve talked about, the dozen plane, the dozen ships out there several hundred miles to the east, yeah, looks like that going to wind down in the days ahead. Michael, the anticipation of surgency doesnt always match practicality. That is going to be the situation here. Appreciate the reporting. Lets bring in david soucie a cnn safety analyst, author of why planes crash and also a former faa inspect per. And miss mary schiavo. And in the pascal colors of easter showing optimism. Mary schiavo, not so much, black for boating, lets see if it reflects the analysis. Were hearing about bluefin 21, its going on. Should we be optimistic, ooh, were moving on or the other possibility . Im very optimistic about what they found, that twomile stretch where they got that pinger for is where theyre going to focus that bluefin 21. Hence, the rebirth and renewal theme of the colors you have on today. Mary schiavo, the oil slick that they found in the area, we hear that theyre not going to be looking for debris anymore because they believe the length of time is too long to find out. But then they find this slick. Could it be connected . What are the chances . Well, its possible, thats why they collected the sample to take it back and analyze it. Its pretty close to the area where they found the pings, two or three miles. This is a pretty late date to have an oil slick that close to the wreckage but im suspecting its probably not. Obviously, its a potential blue, but they had to take it and analyze and cover every lead, as you said. I know when were covering oil spills, usually, unless its a huge pouring of the liquid, it goes down pretty fast. But i guess they have to test it, right . They do have to test it. Remember, this is a Synthetic Oil. Its not something you find in a Diesel Engine so theyll know right away. Is the synthetic a different buoyancy . Its much lighter than the seawater. But it doesnt float longer than ordinary crude oil . Not necessarily. It may be less sat rateable. The new term, the bluefin 21, ive heard. The alvin, the remora, what are these, mary . Well, theyre more advanced vehicles. And the alvin has the ability to go down to greater depths. You know, with each passing day with the bluefin if they dont find anything, or if they find something thats at a greater depth than they can handle, then theyll go to the progressively deeper, tougher, shall we say, more intrusive kinds of equipment that they can send down and search underwater. A lot will depend on what the bluefin finds before they deploy any of the remora or tougher or deeper. The chinese also have one, theirs is called the sea dragon and theirs has the world diving record, going down 4. 4 miles manned. There are lots of additional equipment they can use. But, again, theyve got to wait to see what the bluefin 21 does. It will be great news when we hear theyre deploying the remora, michael, right . Exactly. Once theyve got that down there and starting to pick up pieces. Of course, the focus is the black box. In the interest of optimism, if they find the black boxes, the question would be, who gets to do the analysis. Without sharing any criticism here, you want to make sure you get this right the first time, mary. So what do you think happened . Well, absolutely, as weve heard about over the past few weeks theres the international aaviation organization and the standard and treaties with part of the u. N. , the malaysians have the authority for the investigation and would technically have the authority over the black boxes. But the malaysians have already said they do not have the capabilities and the equipment and the experience to actually take those black box, and download and analyze the data. So they were in the uk over the weekend talking to lkao officials, presumably about their decisions and the next phase of the investigation, including who or what group other what country will do the work on the black boxes. They were also discussing with lkao, apparently looking at the newest safety at the airport. So they had lots of work with them this weekend. But my best guess they will assign it to one of the members already on duty. Mary, david, thank you. Again, we must exercise patience, every time the bluefin goes down its going to be a 24hour cycle. Four hours down, surveillance and then four hours back up and processing of data. So its a day. Mary schiavo, david soucie, well see you later in the show. Kate . Now to breaking news in ukraine where prorussian separatists are attacking a building in an eastern city. Were taking a Live Streaming look of the incident there. This morning, there are growing concerns a civil war could break out at any moment. All of this after a deadline set by ukraines acting president for prorussia demonstrators to leave government buildings. Well that deadline has passed. Russia warning the government not to take any action as the u. S. Warns russia to stay out. We have Barbara Starr at the pentagon for us. But lets begin with Senior International correspondent Nick Paton Walsh in one of the hot spots in the ukraine. Nick, what are you seeing . Reporter kate, remarkably, what we should have been seeing apparently an antiterrorism operation which the ukrainian president promised would happen if protesters did not put down their weapons and leave the building occupied. That was four hours ago. As you said, theyre moving in again on another Police Station on the area, prorussia protesters certainly on the march here. Across Eastern Ukraine, confrontation and violence are the new language of protests. But officials warning that the threat of civil war looms closer than ever. An emergency meeting with the United NationsSecurity Council convening at russias request. The Russian Ambassador calling the situation very dangerous, placing the responsibility for avoiding war on the west. The ukraines second largest city sunday, prorussian activists attacking those in the Ukrainian Government. This amateur video captures severe beat. Further east, closer to the border, militants are taking over government building, this was the scene where the Police Station was stormed late saturday. The captain tries to stop these men. An afghan vet want, one policeman cries. Shots in the air. Another station is occupied by militants surrounded by barricades. Outside of slovyansk a ukraine an Security Officer killed in a shootout apparently with militants. The prorussian groups well armed, well arranged in uniform and prepare to use their weapons. Ukrainian officials issuing an ultimatum to those occupying government buildings, even in the face of a fullscale antiterrorism operation. Moscow accuses ukraine of fighting and declaring war against their own people. Now, yet, another deadline has passed in which ukraines government has said there could be military action. Weve seen no evidence of it despite saying that the operation is gone. And oddly, the acting president holding out that a referendum be held on the same day as president ial elections. Asking those to vote for president. But also what that president will be president of. A messy response from kiev here. And these prorussian protesters backed up by armed force still on the march. Nick paton walsh in ukraine. Thank you for that. While the tension is obvious, the reason for it is in dispute. U. S. Said that the white house is warning russia of more consequences. Lets go to Barbara Starr at the pentagon. Barbara, whats the latest word . Well, good morning, chris. The u. S. Has said all of these attacks basically have the hallmark of russian involvement. And they want it to stop. At that meeting at the United Nations last night, more talk of ramped up sanctions. That appears to the obama strategy. More sanctions on wednesday. Nato will be briefed on military options. Not military actions. Simply stepping up military presence in Eastern Europe that could see more u. S. Troops rotating to Eastern Europe in the coming months but dont look for the u. S. To support any kind of weapons transferreded to the Ukrainian Government, any type of increased intelligence sharing with the ukrainians at this point. How nasty is this all getting . Well, the former ukraine president Viktor Yanukovych has publicly accused the cia of involvement in all of this. Last night, the cia issued an extraordinary statement saying those allegation, completely false. Michaela . All right, Barbara Starr with the latest on ukraine. Lets take a look at more of your headlines, quarter past the hour. Oscar pistorius is back on the stand this morning, once again. The prosecution is challenging pistorius account of what happened the night he killed his girlfriend Reeva Steenkamp. The prosecutor is accusing the anal least of hiding the truth about the death. Pistorius said he mistook his girlfriend for an intruder. Well have a live update for you in from the trial coming up in the next hour. More than 1200 firefighters still battling a mammoth fire in chile that swept through the port of valparaiso. 2,000 buildings have been destroyed and some 10,000 people forced to evacuate from their homes. Quite a scary scene for passenger as board a southwest flight that was diverted to omaha after a man tried to open one of the doors of the plane midflight. The flight was headed from sacramento to chicago when witnesses said the man began acting strangely before going to the back of the cabin and tried to open a door. Three passengers were able to tackle the man and restrained him until investigators led him off the plane in handcuffs. Do you think green looks good on bubba watson . He won the 2014 masters coming from behind in sundays final round to win the seasons first major by three shots. Its watsons second green jacket. Hes just the eighth pro golfer to win two masters titles in a threeyear span. That has got to feel good. First time wasnt a mistake. Second time proves it. What do you do with the green jackets . Do you wear them around . To the supermarket. You go. With your jammies. Yeah. Thats why its kind of ugly. It really is about what it symbolizes, not that you have to throw it on with contact kiss on a regular basis. Coming up on new day, searchers looking under water instead of listening for signals. Were going to break down the new phase with one of the people who helped locate the wreckage of air france 447. Plus, the site of hate and horror in kansas, three People Killed outside a Jewish Center just before passover, the suspect called a pioneer of modern hatred. His alleged involvement is no surprise for those familiar with him. Well give you the latest. How did edward jones get so big . Let me just put this away. Could you teach our kids that trick . [ male announcer ] by not acting that way. Its how edward jones makes sense of investing. And thats epic, bro, weve forgotten just how good good is. Good is setting a personal best before going for a world record. Good is swinging to get on base before swinging for a home run. [ crowd cheering ] good is choosing not to overshoot the moon, but to land right on it and do some experiments. So start your day off good with a coffee thats good cup after cup. Maxwell house. Good to the last drop maxwell house. Predibut, manufacturings a prettin the United States do. Means advanced technology. 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This is the man accused of shooting and killing three people at a Jewish Community center and nearby retirement home in Overland Park, kansas. Hes a 73yearold former ku klux klan leader and in custody. Reports describe him as a life long antisemite. The shootings coming in the eve of passover. The odd part, george, he has been active on socialed my in recent years, right . Reporter chris, a long history of hate. You know, it was supposed to be another sunday for people here. It was a group of teenagers packed into this Community Center, auditioning for a play and singing competition. At a nearby retirement home. Folks just enjoying the afternoon. They were all potential targets for this man armed with weapons filled with hate. Theres a guy with a rifle here shooting at people. Im leaving. Why, is he still here . I dont know. Reporter on the eve of pass jovgs a lone gunman opens fire at two jewish facilities. Described as panic. Reporter panic, fear and confusion. Dr. William lewis corporon and his 14yearold grandson, reat Griffin Underwood. For auditions. There were people ducking down inside. Reporter moments later, another victim was shot and killed at village shalom. Police arrested Frazier Glenn cross at an elementary school. As hes taken away, he shouts a slogan. Police say the suspect also known as glenn miller has tice white spremmists. He apparently has his own website and the Southern Poverty Law Center describes as a longtime antisemite. Hes an older gentleman, asking people if before he thought if they were jewish or not. This sounds like a hate crime. Reporter last night, just hours after the shooting, this powerful moment at a vigil. Im the daughter of the gentleman who was killed and im the mother of the son who was killed. Reporter you can hear the emotion in the crowd as she shares her last words with her father and son. I just appreciate you being here. Reporter as you heard in the report, he went around asking people if they were jewish. Starting people in that regard. We do expect to learn more about cross later today, as he is due in court. Chris, kate . Wound up killing two people who werent jewish. Just a stupid act no matter what his intentions were. Just a stupid act by a person who now hopefully is going to get to pay for it. Just hearing that mothers strength, its difficult to listen to. George, thank you very much. Were going to continue to talk about this throughout the show and shed the light on the victims what could possibly motivate this. Nothing makes sense. Lets move over to Indra Petersons to get a check of the forecast. It was beautiful here this weekend, indra, hows is looking . Beautiful east. Unfortunately, the Severe Weather out there in idaho, oklahoma and texas. Today, that Severe Weather risk is still out there. You can see the risk farther to the east stretching from birmingham, all the way to new orleans. Even right now, were looking at the severity of that threat as that weather system continues to spread east. Today southeast, spreading into the northeast by tomorrow. Look at the back fire here. You are talking about snow, snow out by new york city by tomorrow night. Chicago today looking for light flurries. You can see High Pressure buildings in which means more cold air from canada so