All right, hello again, everyone. Thanks so much for joining me im fredricka whitfield. A piece of airplane debris found last week does indeed belong to a boeing 777. Its the same model plane as the missing Malaysia Airlines flight 370. Malaysian authorities confirming that today. The piece of aircraft swing in now in france where investigators will begin examining it on wednesday. It was found on the Indian Ocean Island of reunion. Earlier today a metal object of interest was found off the islands coast. Flight mh370 vanished 17 months ago with 239 people on board. Lets bring in cnns Erin Mclaughlin on reunion island. What more do we know about the socalled object of interest found earlier today . The object was found on a beach not far from here about 13 miles from where the flaperon that original piece of debris was located. And earlier today, around eight Police Officers turned up on that beach to analyze it document it and they took it away asp later publishing a photo of the object. The photo showed a twisted piece of metal with chinese characters on it. Those characters leading to a lot of specific taigs lags and buzz online. Especially on chinese social media sites. Some people speculating that those characters stand for a brand of chinese tea kettle. Authorities, well theyre not speculating. Theyre at the moment saying that this is part of an investigation, theyre not tying it to a plane, per se. Fredricka . So help us understand who is involved in this search. Who is there on the island . And who is scouring the waters nearby . Yeah well right now, the cleanup crews that have found that original piece of debris and are continuing to clean the beaches, keeping a lookout for any signs of potential plane debris but local residents also helping out. In fact today in the town where that original piece of debris was found, residents brought forward to city officials some 10 to 12 items, potential items. So far authorities, though discounting all of those items as being related to the plane. And it really just sort of illustrates that this is a very small island surrounded by a very big ocean. That is full of garbage. That is the sorry state of the oceans today. And so you know people speculating, trying to help out. Trying to solve this mystery. But there will be plenty of false alarms in all of this as well. Now yesterday, residents on the island held a prayer service, a mass for mh370. They said prayers. People here really feeling a connection to the victims, the families and friends of those that were on board the missing plane and they held a mass in solidarity. All right. Erin mclaughlin. Thanks so much. Keep us posted from reunion island not far from madagascar. All right so what happens next in this investigation . Mary schiavo is a cnn aviation analyst and former Inspector General with the u. S. Department of transportation. Good to see you. Thank you. So how much confidence do you have in this piece that matches a boeing 777 that was located . Is it too ambitious to think that a whole lot of information will come from it . No. For the flaperon you can get some information. Now i dont think that you can solve the mystery of what brought 370 down but you can get a lot of information. For example, you can rule out if there was an explosion or any kind of a chemical device on the plane from a characteristic pitting that would be on an aircraft part. Say there was an explosion in the cargo hold or fuel tank. You can also tell from the flaperon how did it tear from the plane. Did it tear in a twisting action or did the pins and bolts holding it on fail maybe even before the plane hit the water or as the plane hit the water and this piece did not go down with the rest of the plane. Remember if it ended up on the beach, if the search area is correct, the items would have to float. Otherwise they couldnt make it to the beach in the big geyer that they talk about depositing debris. Then there will be experts who will be able to determine how long perhaps, that piece may have been in the water and that too, would help detect whether it has any relationship to mh370 . Sure. And they probably would determine that not only from the how deteriorated the piece is but from the marine life. Now if the marine life was dead they wont be able to tell how long it had been on the beach but they can tell how long it had been in the water. Those particular kind of barnacles, there are over 1,000 types of barnacles, but those are loose barnacles, at least that i can tell from the picture and they do you know they dont have to be in a particular part of the ocean. They have the ability to gather food from the ocean currents as they go along. They can tell that from the piece of the plane perhaps. How much confidence do you have in malaysian authorities, because we understand malaysian authorities have made their way to reunion island and presume kwli if there are other pieces of debly that would wash up on that island then their hands mayan the first on them. Well i dont have a lot of confidence in the malaysian authorities to conduct an air investigation of this caliber. And they dont either. Why not . Thats why there are seven nations participating in this investigation, including france the united states, and the uk and australia. All of those countries have tremendous amounts of experience and they are turning over the debris to the french. Boeing is there, as well. And the ntsb. So there will be a multinational investigation. Hmm. And if indeed it turns out that this is debris related to mh370 you also mentioned things that could be ruled out, explosions because of the pitting on any kind of debris. What about any kind of markings that would tell whether it was high speed, or you know exactly what may have brought the plane down if indeed, it is related to that plane . Right. Well high speed crash from cruising altitude say both engines flamed out due to lack of fuel or fuel starvation at 35,000 feet and it did a steep dive into the ocean the parts would be very small. Again i mention this particular flaperon part could have left the aircraft in the des scent. In the crash sequence. But you tend to find very small parts if it hit the water at very high speed. So they might be able to tell that that it wasnt a high speed dive from 38,000 feet. Now the later part the thing with the little red handle that we just saw that does not look in any, way shape or form like an aircraft part and i do not think thats part of a 777. That was the second metal of interest that kind of ball of matter and thats the one that youre referring to. Right. All right, mary schiavo, thanks so much. Well check back with you. Appreciate it. Also new developments now. Police in memphis, tennessee, say they have a person of interest in custody following a manhunt for a cop killer. Officer sean bolton was gunned down after he made a routine traffic stop last night. A passery used the officers radio to alert police to the shooting. Bolton who was shot several times died after being rushed to the hospital in critical condition. Police say the 33yearold had been on the force since october of 2010. He was the third officer killed in memphis, tennessee, in the past four years. Joining me right now from los angeles is retired lapd Police Sergeant charleseryl dorsey. Whats next do you believe in this investigation . It really speaks to the reflexes of a passerby to make a call in to alert police about what happened. Thank goodness for that citizen that was able to stop and render assistance to the officer and get units on scene fairly early. Now its going to be a matter of finding out what this person of interest has to say and what their involvement is and relationship is to this vehicle and the traffic stop. Hmm. And what about Surveillance Video dash cam video. All of those things that are tools in trying to determine what happened. How much credence do you have in that . How much confidence do you have that those things are available . I hope it would be available in terms of dash cam. I dont know this agencys policies and procedures. We also can look to businesses and residences in the area. Sometimes those can be very helpful if you see a vehicle come in to screen if you will at the time of the incident shortly thereafter. And helping identify people who are coming and going. Right . And so ep halfly those things will also add some light to what we have coming from this person of interest. And we always hear the words routine traffic stop put together. But it seems as though traffic stops are anything but routine. Help people understand the potential dangers, what an officer braces for. What could be an expectation from any traffic stop. Traffic stops are never, in my opinion, routine. And understand that what i said in the previous segment is that we have to react to what someone already has in mind when we stop that individual. We dont know where theyre coming from we dont know what they have been involved in prior to our contact with them and so thats why its important for Police Officers to always use good tactics. When approaching a vehicle. When stopping a vehicle. And more importantly to communicate. Thats whats key is communicating to dispatch exactly what your actions are. So that in the event things go awry others will know what your last moments were before something awful happens. All right. Retired officer Cheryl Dorsey of lapd. Thank you so much. Thank you, fredricka. Still ahead. Four days until the first republican primary debate and donald trump insists that he is not practicing not preparing. Will that work for him . Were going to ask our debate experts next. When youre not confident your companys data is secure the possibility of a breach can quickly become the only thing you think about. Thats where at t can help. At at t we monitor our Network Traffic so we can see things others cant. Mitigating risks across your business. Leaving you free to focus on what matters most. Hi my name is tom. Im raph. My name is anne. Im one of the real live attorneys you can talk to through legalzoom. Dont let unanswered legal questions hold you up, because were here were here and weve got your back. Legalzoom. Legal help is here. People with type 2 diabetes come from all walks of life. If you have high blood sugar ask your doctor about farxiga. Its a different kind of medicine that works by removing some sugar from your body. 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Common side effects include urinary Tract Infections changes in urination and runny nose. Do the walk of life yeah, you do the walk of life need to lower your blood sugar . Ask your doctor about farxiga. And visit our website to learn how you may be able to get every month free. All right. Welcome back. This tuesday we will know who among the 17 republican candidates will appear on stage for the first gop primary debate thursday night. Only the top ten in National Polls will be allowed to participate. The remaining candidates will appear in a separate debate at 5 00 p. M. Well this as donald trump shakes up his campaign. He fired this man right here his Campaign Aide sam nunberg, over racially charged facebook posts that he allegedly wrote. Cnns Sunlen Serfaty is at the white house for us. What more do we know about this aide who was fired . Well we know fred that he was a top political aide of donald trump. He actually worked for him back in 2012. He was fired then the first time he was fired was in 2012 and rehired for trumps 2016 president ial campaign. Clearly some history between the two. But last week when the disparaging racially motivated and disparaging remarks came out on his Facebook Page that were posted in 2007 the campaign then said that they would look into them and investigate them so clearly the Campaign Making a move today to cut ties with him today. Effective this afternoon. Now, as this controversy swirls all eyes fred are on thursdays debate where donald trump goes in as a frontrunner. So clearly he is understanding here that theres in some way a target on his back in that frontrunner status. He spoke about how hes not going to throw the first punch, but he anticipates a lot of other people will come after him. Heres what he said on meet the press. Ive always counterpunched and you have to counterpunch. Im not looking to start anything. A lot of people saying oh, theyre getting ready and theyve got their little lines given to them by the pollsters. Everythings perfectly put down by a pollster. What to say and how to attack me. You know if that cops it comes and ill have to handle it at the time. Now in one of his opponents, senator rand paul who will be up with him on the debate stage thursday night, he said that this week is the rise of donald trump he believes represents a temporary loss of sanity in the Republican Party. He was asked about those comments by jake tapper. It represents a vein of anger for some of those thinking about donald trump. But theres going to be a serious debate starting this week about who has ideas that would fix the country. Instead of getting so far afield in a lot of i think, maybe empty talk maybe we ought to talk about should we have a flat tax. And i think that argument is one that we will see acted out up there on the debate stage on thursday night fred as some of these opponents of trumps try to take him on more directly over the substance of what his political platform is running for president. Sunlen serfaty thanks so much. With me now from liberty, maine, is David Birdsell the coauthor of president ial debates, the challenge of creating an informed electorate. Good to see you. Good to be here. Okay. So while trump is at the top of the majority of popularity polls, he is also winning the highest unfavorable rating that dubious distinction. So how do you square that you know, how does he go in to this debate knowing that he is most liked and at the same time hes least liked . Well donald trump is a polarizing figure. And thats not necessarily unusual for somebody as outspoken as he is. Hes tapping a vein of anger as senator paul suggested. Thats powerful. And its going it already has propelled him to a 25 support level among the republican base. The question is whether he can get beyond that and at what point the rest of the Republican Party decides to rally support behind one or two candidates to begin to create more favorable poll numbers for others. Okay. And so you know debates. And you know about the importance of strategies that most candidates have. But on meet the press this morning donald trump said you know what quote, he said this he quote, doesnt want to be unreal. I want to be me. And he says he quote, knows the subjects well and will see what happens. In other words, you know hes kind of winging it. Well thats of course what hes telling us. We dont know what hes doing behind the scenes. But so far winging it has done pretty well for donald trump. Its exactly that kind of unscripted, anything goes say whatever is on your mind quality thats propelled him to this 25 level of support. So he sees no reason to go anywhere else. It could hurt him in this debate though if hes perceived to be a less serious candidate than others on the stage. At least with the other 75 of voters in the party. At the same time weve seen a few different Donald Trumps right . Weve seen kind of the showmanship donald trump. Weve also seen the businessman donald trump. And i think this morning when he was on both this week and meet the press he came across a lot more serious and i wonder if thats twhat he will bring, if that will better translate for people that he brings kind of the man that goes into the board room and no one wants to believe that he goes into a board room unprepared. Well exactly. And thats why i suspect theres much more going on behind the scenes than hes letting us know at this point. But if the programs that he was on this morning he had more time to state a position than he or any of the other nine candidates will have on thursday night. This is a very compressed format. Youve got ten people up on the stage. Thats just a remarkably logistical challenge to try to get through and making a message or frankly for the moderators to try to allocate fairly across all of the candidates the question space that they have. Plus you only have 60 seconds to respond to a question 30 seconds for rebuttal. So you have to have some focus. Some real idea about what it is you want to present, what it is that you want to convey. Thats exactly right. And some people have speculated that mr. Trump may not always abide by the rules of the debate. Its going to be up to the moderators to ebb force those rules. If he continually talks overtime and across other candidates even though people like his irritativeness they wont like it if its perceived to be actively rude to people standing next to him on the stage. David birdsell thank you so much. I appreciate that. Although i think donald trump probably likes that stepping out of bounds. Appreciate it. Remember for all the latest news on the race for 2016, go to cnnpolitics. Com. Still ahead, more than two dozen major wildfires threatening thousands of people in california this afternoon. Well check if weather will cooperate as crews work around the clock to put out those flames. Listen up. Im reworking the menu. Mayo, corn dogs. You are so out of here ahh. The complete balanced nutrition of great tasting ensure. With nine grams of protein. And 26 vitamins and minerals. Ensure. Take life in. No students ever photographed mean ms. Colegrove. But your dell 2in1 laptop gives you the spunk for an unsanctioned selfie. Thats that new gear feeling. Get this High Performance laptop bundle for only 399. Office dep