to go through what i went through. it is not right. it has to be fair. good evening, everyone. i'm don lemon in new york. this is cnn special, live coverage of the disappearance of malaysia airlines 370. the boeing 777, missing with 239 people on board. here is what is new tonight. malaysian officials are looking hard and looking again at the people who walked on to that airplane ten days ago. i am not talking about just paying passengers. the captain and his co-pilot. they are getting another close look too. one thing the malaysians believe is that the last contact with the plane could have been made from the ground. if that is true.

that means somebody who knew what they were doing landed that jet. it is just one working theory. it is no the a wild departure from what american officials believe, either. a u.s. intelligence insider is telling cnn they are leaning toward the scenario that the pilots are responsible for that plane vanishing. no details beyond that. now, let's go to the search. it is a massive operation. it has to be. look how much land and open ocean that 777 could have covered, planes, ships and satellites belonging to 25 countries now involved in this search. a few countries are saying, no, there is no way that plane is here. india and pakistan are both saying, if it entered their air space, they would have picked it up. i want you to listen to this. a friend of a man at the controls of the plane. he told cnn that it is not fair to imply somebody did something wrong before all the facts are in. take a listen. >> i feel particularly affected

for the lack of evidence, they are going into theories like questioning his credibility, his crism lin terrorism link and issues like that. it is a little bit insensitive and unfair to the family z that interview was in kuala lumpur and malaysia, where cnn's jim dlan clancy is right now. jim, is the focus on those two airline pilots just as strong today as it was over the weekend? >> reporter: certainly. they have searched the homes over the weekend. they have taken the flight simulator that was in the -- they have examined. >> we are having a bit of a problem there with jim clancy. we will get that fixed and get right back to jim clancy for the very latest from kuala lumpur. right now, the "uss kidd" is

scouring for any remains of the plane. the commander is joining us. tell us about today's search. >> thanks for having us on, don. we appreciate the opportunity to talk about what we are doing up here. we are supporting the malaysian government that is running the overall search plan and operation. they give us areas to go search and we do so. right now, we are in the adaman sea. heading to the indian ocean, taking a look for any debris in the water. we have extra people standing watch to take a look out with binoculars and cameras and leveraging the advantage of the helicopters on board which allows us to check a lot more space in a lot less time than the ships. we are combining that effort. so far, nothing that leads us toward something related to the

missing airliner. the waters are highly congested with fishing and commercial vessels. we find a lot of material in the water, whether it is fishing buoys or other trash or debris but nothing that would lead us to believe it was associated with the missing airliner. >> many may feel these waters are open water and it is not very congested but you said this is a very congested area. had an airplane gone down, someone would have seen something in the particular area where you are searching. >> i can't say that for certain. when we started our search on 8, march, in the gulf of thailand. that air body of water is definitely highly congested with fishermen and commercial ships. we searched all through there with vessels of several other navies. we searched that area intently. at that time, i think that was the highest priority or highest probability in the malaysian government's assessment. we then after a couple days there, shifted to the west of

the stra strait of malacca, the busiest waterway in the world. going in the sea where the merchant ship goes in and out to get back to asia, that is very highly congested. when you get 50, 60, 75 miles off that main thorough fafare, can find pockets that are less congested. not conceivable but in the lower density areas, by commercial shipping, you would expect a higher probability of somebody missing something. >> i want to bring in cnn meteorologist, chad myers. even if we can rule out pakistan, the search area is still enormous. >> it certainly is. probably the size of half of the lower 48 states of the united states. because the lines here. we will get to why there are lines. 200 miles east and west or north and south of that line right through there, that's about 1

million square miles. same story down here in the south part of the search area. about a million square miles. that's literally 2/3 to 1/2 of what the united states would be. trying to find an airplane somewhere in the united states. >> what about the ship traffic in that area? you heard the commander talking about it. can you point out to what he is talking about? >> this is marine tracker.com. i know i can look at this, there are over 1,000 ships in this strait here between the gulf of thailand back over here to malacca, the strait of malacca. everybody has to funnel through there. all of this traffic, had their been debris in the water, probably somebody would have seen something, specially in the daylight hours. there are some miscommunication saying that some people have found luggage. we any that was mistranslated to saying, please look for luggage in the sea.

no reports confirmed of anybody that has found anything significant with this flight. >> chad myers, i want to broaden our discussion about this search. we are joined by hanz weber, an aviation safety expert. also joining us is brad meltzer, history decoded and host of brad meltzer on the history channel. and we have mitchell cabrera, we saw him all last week with martin savidge. hanz, i want to start with you. let's talk about the jet's acar system, the aircraft's communicating and reporting system. at this point, can it lead investigators to this aircraft? >> it's doubtful, because it doesn't seem to be functioning. it seems to be turned off. somehow compremize compromised.

the satellite element of acar is available but not all airlines describe to it because it is expensive. i don't know whether malaysian airlines subscribed to the satellite communication. it appears that maybe at one point, they subscribed to it. the airplane was properly equipped with that capability. it seems to me that currently, they are not subscribing to that satellite communication of acars. >> so, then, hanz, what about the signals or the pings from the cockpit. what are they looking for depending on if the plane is in water or on land? >> are you talking to the so-called pinging from the acar's satellite antenna frying to establish contact with the

satellite or are you talking about the emergency? >> either one. i am talking about the pinging that was received and if the other systems are in place, should there be information coming from them as well? >> the acars instant communication channel, that, plus a radio communication for the pilots, the fact that there was this so-called pinging, which really appears to have been the antenna, on the 777, trying to establish a link with the satellite but the satellite did not establish the link. that would have -- the reason for that, as far as i know, would have been that malaysia airlines did not have that capability in their account. they were not paying for that capability. >> right, right. >> so that's the only thing. there is no other way, other than radio, to communicate.

>> i want to go to mitchell now. i want to talk about that flight sim mu lay tore. you know how this 777 works, sophisticated airliner. what do you believe happened having worked with the very similar airliner, specially with that sim mu lay tore? >> well, as far as the simulator goes, a lot of questions have been raised about him having a simulator in his house. for a pilot, that is as per normal, nothing out of the ordinary there. pilots, it's a passion to fly. it's not just a job. it is 24 hours a day. you live it. it is completely normal for him to have that flight simulator. i don't see anything out of the ordinary there. >> they also said he had that flight simulator. people that knew him and his friend that we showed an

interview of, because of his passion, his love for flying. people that have training bicycles in their house if they are cyclists or people who have treadmills in their home, do you see that any differently? >> no. not at all. a flight simulator actually using my information, it is a great tool to use for your training. every six months, we have to go back and train. it's a great resource to train and practice those maneuvers and practice those procedures, keep current. so, nothing at all. >> mitchell, it is so early on. we still don't know and they are still checking into that. brad, i want to go with you. you deal with conspiracy theories all the time, all the time. what do you make of this, how can a large passenger jetliner just vanish like this, seem to have fallen off the face of the earth? >> what we are looking at, it is almost like the pilot episode of lost. that's the scary question. how does it vanish? we have to remember. that makes it a mystery.

mysteries like any story. a story isn't what did happen but what could happen. we all know the facts are all not there yet. when i talk to our investigators we use, my favorite one we work with, she pointed out two things, which i think bear repeating. one of two things happens. it is not just how do they vanish but how have they been quiet this long? one of two things is true, the plane has crashed in the ocean and everyone on board is gone. or, if they are still alive, how do you keep it quiet? that's the scariest part to me? it is not just that they have vanished but we haven't heard anything in all this time. we all know how impossible it is. every conspiracy falls apart. how do you keep everyone quiet? >> brad, i'm glad you brought that up. we have been talking about this. i have been getting questions from viewers through social media, and e-mail and on the street. specially on today, like a day we deal with the supernatural, the supernatural power of god.

you deal with all of that. people are saying to me, why aren't you talking about the possibility that something odd happened to this plane, something beyond our understanding? have you dealt with that on your show and are you surprised that people are raising those questions? >> listen, when you do a show like decoded, no one gets crazier e-mail than me. we all kind of roll our eyes with conspiracy theories. what they do is ask the hardest, most outrageous questions. but every once in a while, they are right. why it has captured our attention, there is no logical explanation. you can say it crashed into the ocean but something just seems odd. where are the parts? where are the pieces? why do they keep going for seven hours? why do you have a guy on board that gives his watch and his ring to his wife and says, keep this for my boys in case something happens to me. something smells wrong. one of my favorite reporters said to me, the american people

always will sniff for the truth until they find it. there is something about this story that strikes us at our core where something feels really fishy. it just smells terrible. when that happens, i'm not one of those believers that aliens came down. how does a jetliner with almost 200 people disappear? how are they just gone? >> absolutely, absolutely. thank you very much. stick around, guys. we will see you a little bit later on. >> could the passenger's cell phone information help in this search? if the plane landed, would that make a difference? plus, we are going to break down the plauz ability sability of ts being investigated. cnn special coverage. stay right there. makes you realize how old time is and how short life is. she can take all the time she wants. princess cruises.

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plausibility. >> glad you could join us. welcome back to the special live coverage of the disappearance of flight 370. many wonder why every day cell phone tracking can't help pinpoint the location of any of the cell phones of the 239 people on board that plane? shouldn't it be as easy as "find my phone" app. experts say, maybe not. cnn technology analyst, brett larson? >> is it being used in this search? >> it could be, but it may not be very valuable. cell phones are most easily tracked when they have a cellular or data connection. even if you have 268 phones, all turned on, all actively looking for a signal, if there is no signal to be found, those cell phones and even the "find my phone" app are useless. even though they have a gps data tore connection, they are not

going to be able to find you relative to where you are, because they need that data connection to say, okay, you are here. say if you're in the middle of the grand canyon and there is no cell service, the gps says you are here. without that data connection, you can say, it happens to be the middle of the grand canyon. >> i am flying above water. above water mink tt meaning the not just river. >> i raised this question last week from a cnn analyst, his name rhymes with guest. he completely shot me down. >> a lot of international carriers now have wi-fi on board. i was just on with tanza a couple of months back. they had wi-fi. we had wi-fi over the ocean. it requires a satellite connection. if that were the case and the passengers were savvy and quick enough to note something had

gone wrong or whatever the situation was, if they were to turn on their phones, they would have been able to make a data connection and send some sort of information. >> every once in a while, i fly a lot. if you are in a clear area, those clouds part, you are in the sky and not even wi-fi, oh, my gosh, i have service. it is 30,000 feet. what is happen sng. >> it means there is plenty of connection on the grown. the signals are high frequency. they go up. they don't go down. it makes sense if you are flying over a populated area where there is a lot of cell service. >> this is a populated area. >> you are going to pick it up. >> the bulk of this flight has been where it has kind of fallen off the radar literally has been in areas where there is no ground-based communication, all courtesy of satellites and way of satellites. that requires additional, specially for cell phones and tablet devices. it requires that additional step to jump it from the airplane to the satellite to give it the here i am. >> if the plane was low enough

and we are looking at 9/11, people were making phone calls but that was in the days, the old back of the seat. >> that went through the airplane's communication system. it should be noted even that technology with the cell phones or the telephones, rather, the air phones in the back of the seats, didn't work when you were over water, because they required a satellite connection. >> we are giving different scenarios. if something happened to this plane, something catastrophic, if it did crash, that changes everything. >> then none of this would work. the only situation where we could see where having those cell phones would be a potential life safer or a game-changer, if they landed in an area that had cell service that was compatible with the cell phones and the cell phones still had the power to stay on and maintain that connection to the cell system. when those phones connect to the cell system, they are trackable, findable. >> why the ringing? everybody is like why the ringing? why are they still ring sng usually, if the phone is off --

>> if i'm on the subway, it goes to voice mail. >> the reality on cell phones ringing. when you make a call, if you're calling my phone, it is not my phone that's sending that ring tone back to you that makes the sound, it is the cell phone verizon, at&t, vodafone, sending that back to you instead of the silence. while you are hearing that ring, it is looking for your cell phone. when it doesn't find it, it goes back. >> a little bit of hope. the families and i want to hang on to that, that they are alive and the plane is intact. coming up here, we are going to talk tie panel about the theories floating around out there and which one rs most plausible. the partner of an american on the plane break her silence now. she says she is quite certain that he is still alive. you are going to hear from her. that's next. ♪

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welcome back to cnn special live coverage. since flight 370 is missing and nobody knows its fate, there are multiple, many theories on what happened to the plane. did it vanish due to terrorism? was it hijacking or a catastrophic failure of some sort? was the jet struck by a meteor? there are many theories out there. malaysian government theer oriz it was deliberately flown off its course. back with me, brad meltzer and

mitchell casado, a pilot trainer who has worked in a triple 7 pilot simulator and hans weber. there are lots of theories out there, hans. one that many believe is that this plane is somewhere probably on the bottom of the ocean. if so, why not debris field? can this happen without a debris field? >> no, it cannot happen without a debris field. there is always a debris field. there are many items on an airplane that are buoyant, sea cushions, et cetera, usually, there are air pockets in stabilizers. remember, the air france 447 had the vertical stabilizer float around in the ocean. if you're interested, i could offer one theory. i read today, a friend of mine in england sent me a page from an english paper. i think was called "the daily telegraph" or just "the

telegraph." some guy in british custody who used to be an al qaeda operator in pakistan told a court that he met several malaysians in pakistan. months them, a pilot. they were talking about a plan to hijack an airplane. they were wondering how to enter the cockpit door? he gave them, he said, a shoe bomb he had made, a relatively small bomb, not big enough to take down the aircraft but powerful enough to break open the cockpit door. here is one potential theory. these guys broke into the cockpit, and maybe had one of the pilots cooperate with the idea that he might be able to save the airplane later. the next thing we have learned is that the airplane climbed to 45,000 feet. >> would that be a scuffle in

the cockpit? for someone who is not used to flying that plane. >> it could be a scuffle. it could have been a scuffle of some sort. to make my theory work, you will see it later on. one of the pilots might have actually cooperated because it might have gone to 45,000 feet, because they wanted to asphyxiate everybody on board, except the ones in the cockpit, who had access to the oxygen masks. the cockpit oxygen supply lasts much longer. >> stand by. because i want to bring in mitchell now. mitchell, when you're doing that demonstration in the sim mu lay to simulator with martin savidge. it is tough for a plane to get to 45,000 feet, specially for someone flying it, not used to flying it. it depends on the weighing and

all that. is that a feasible theory, it climbed that high because they wanted to asphyxiate everyone on board. >> it is feasible to get up that high. is it feasible to get up that high to asphyxiate the passengers. that, i'm not so sure of. i had a lot of trouble holding that altitude of 45,000 feet. i was on the brink of overspeeding the aircraft. the aircraft being structurally unstable, things coming off the airplane and stalling the airplane, the airplane losing lift and fall from that height. there is a very fine line to fly that airplane. one millimeter up or down and you are out of control. being up at that altitude, you are in uncontrolled flight. you are in experimental aircraft. no pilot knows what it is like to really fly that airplane at that height. it is not certified. it is all the numbers in all the manuals mean nothing.

it is experimental. this is just conjecture. nobody knows for sure. it is possible in theory to reach that altitude. how the airplane behaves in real life, we can simulate it but in real life, that's very hard to say. >> mitchell, what's the peak for a commercial aircraft for altitude? >> the 777 24, is 45,200 feet. that is not to say on some days it can't reach that altitude. some days it is really hot and the molecules are affected and you can't get to that height. >> beyond the 777. >> beyond the 777, that means you are looking at between 35, 41,000 feet. but going up to 45,000 and above is unheard of.

>> so the 777, that's a peak, 45,000 feet. brad, this is what you talk about. these are different theories. you heard what hans said. what do you make of it? >> you know, listen, what hans said is, again, the investigators we use on dakota, my favorite one, had the asphyxiation theory a couple of days ago. she said you have to go back. sometimes to the sherlock holmes of it all, which is sometimes the most simple explanation is the one that makes sense. the simple part of this is how do you keep all those people quiet? you have almost 200 people on a plane going seven hours longer than where they were supposed to go. how do you stop 200 people from calling loved ones, texting people and doing something to say help us. it is because you did something to keep all those people quiet. that's what has to happen if you want them to stay away. you have to keep them quiet. >> brad, you have heard this

meteor theory. authorities are saying it may have flown for seven hours after that. that would probably strike down this meteor theory? >> listen, we will strike down all the theories with the facts when we have them. what we are seeing now, the reason we are asking these questions is that all conspiracies at their base are myrrh roa mirrors of what we are fearful the most. if you look at jfk, in the '60s, we blame the communists. in the '70s, the establishment and the cia. in the '80s, we blame the mafia. if you want to know who killed jfk, it was whoever america was most afraid of. this is tapping into our greatest fear, the most obvious fear of flying and crashing. it is one of the base fears. that fear you could disappear in a moment as notice. it is striking something within us where we all know. the reason we are talking about this right now so many weeks

later as it goes is simply because there is something that really scarce us abo real scares us about this. you see everything coming all at once. that to me, at this moment in time, you have to stop and say, why are we still obsessed with this story? it is not just because of the concern of the people, which is vital but we are just asking every question we can because we can't wrap our heads around how this could ever happen and how this many people can disappear. >> right. the sheer lack of fact and the fact that this plane has been missing for ten days. many people thought that would never happen. that's impossible. that could never happen in this day and age. >> the thing that's so fascinating. we all know when you are on a plane that there is somebody who keeps their phone on that says, i still have to text my loved one. i want to see how my kid is. there is someone who phones home. in this nsa obsessed world, we just can't believe something is wrong. we know it in our core, you can't keep everyone quiet like

that. that's what's gnawing at all of us right now. >> right now in the u.s., you can keep your phone on. they will tell you at the beginning, keep your phone off. keep your device on but turn it on airplane mode. thank you very much. we will see you here soon on cnn. up next, you are going to hear from someone who makes these underwater beacons in black boxes. how close do search crews have to get to pick up a signal on them? one of the americans on board, his partner is breaking her silence saying philip wood is still alive. she is certain of it, she says. you are going to hear from her next. celebrated. but things have changed since you got into this business. at philips, we're creating led light that people can color... adjust... even make beautiful sunsets. dear sun, you might be number one, but we're getting closer. innovation and you philips

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ten days after malaysia airlines flight 370 disappear, the newest chapter in the investigation is focused on the pilot and the co-pilot. we have learned the last words ever heard from the cockpit, all right, good night, came after the plane's communication systems were switched off and police have seized and are examining a flight sim mu lay tore that the pilot kept in his home. they are looking for any possible clues about why the plane veered off course and what the malaysian government describes as a deliberate move. the search has grown exponentially. it includes thousands of miles of land and sea. for its part, pakistan says its radar system did not pick up any sign of a wayward jet. for the families and loved ones

of the 239 people on board that missing jet, the past ten days have been agonizing. phil wood is among the missing. today, his girlfriend, sarah bajak, spoke to the bbc radio. she said she has to believe that he is still alive and she thinks, in fact, she hopes that the plane was taken for a reason other than to simply be crashed into the ocean. >> i am quite certain that philip is still alive. i still feel his presence. a logical conclusion, i used to read sherlock holmes as a kid, i think i have memorized all those stories. as improbable as it sounds, all of the point to the fact that the flight has been taken. you don't go to that excruciating level of planning and self-discipline and resource enablement to take a plane only to crash it with nobody seeing it. i am expecting it is going to be

a lot longer. i do believe they are still alive. if philip is the only american adult on that plane, he is going to be a valuable asset for them. he is smart, very self-controlled, very calm guy. so he won't cause trouble. he'll take a calming approach and if anybody is going to survive it, it's going to be him. i just have to believe that he is still alive. >> so the plane is headed to beijing. cnn's david mckenzie joins us live. it is now day ten for this ordeal for these families. how are they holding up? >> they are holding up the best way they can. a lot have o them expressing the same kind of sentiment you have heard there. they believe their loved ones might be alive. as these twists and turns have taken us through the last week or so, the new information that this plane was deliberately

taken or taken control of coming from malaysian authorities and others, gives these families hope no matter how remote that hope is at this point. a great deal of anger and frustration from the families, at authorities, at the government and china as well weighing in saying the malaysian government hasn't done enough, don. >> we are seeing more and more finger pointing from china, david. why is that? >> there are a number of reasons. china feels, perhaps, they don't have any control of the situation. china is much bigger, more powerful country than malaysia. they are beholden to the malaysian authorities to lead this investigation. through state media and others, they have accused malaysia of dereliction of duty at worst. that's a quote. best, withholding information. they have also pointed the finger at the u.s. saying the u.s. needs to have -- use its

intelligence capability. china is a powerful country. it is growing more powerful. it doesn't have the capabilities like america does. so in a way, it is feeling the pressure from its own citizens to help solve it but they can't. so, one way to solve that problem is to point the finger at others. of course, also, there are all these families, hundreds of them particularly here in beijing who are feeling the brunt of the emotional trauma of this event. the chinese government twoonts look like they are on their side. >> david mckenzie in beijing, thank you very much, david. still to come, the maker of a key part of the flight data recorder tells us about the chances of ever finding the plane when your search area is just so huge. can pings be sent if the plane is under water? the answer is next. like a milk-bone biscuit. ♪ say it with milk-bone. and his new boss told him two things --

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welcome back. a plane is missing. 25 nations are searching for malaysia airlines flight 370. coming up short. dozens of ships and planes scouring huge swaths of ocean and land. the search includes trying to detect pings from the flight data recorders. chuck scofield joins me.

he works for a company that makes one of the components that emit signals in flight data recorders. we do know the plane's tran transponder was shut off. >> as far as the ping, it triggers once it is submerged in water. >> how close do search crews need to get to the plane to pick up a signal from it. >> depending on a few factors. traffic in the area, algae in the water, et cetera. they are certified to two nautical miles. >> given the enormous depth of the indian ocean, i think would they have to be right up on it in a certain depth of water?

>> they are certified to survive up to 20,000 feet. as far as locating the device, that two miles is good for any direction. >> what are the chances, though, of the beacons failing? woe look at recent airline tragedies or missing airplanes and it has taken up to two years in some instances to find the data recorders. >> actually, each unit is tested in water prior to shipping to it's destination. so, the likelihood of the pinger failing is very slim. it is a very reliable device. it has been used for many, many years. this unit has proven effective over long span of time. other than that, fairly simple and very reliable.

>> mr. scofield, stand by. our meteorologist, chad myers, has been reporting on this, also, the tracking of the plane, satellite, radar and all that. do you have any questions for him? >> chuck, i do. this is not going to show up on some random fish-finder, from some bertram going across fishing in the area. who has a receiver to hear these pings? >> agencies such as the navy, coast guard, et cetera, typically, can pick up on the signal, be done on the surface or by a toe da ray at a certain depth. >> how many receivers do you think are out there listening for a ping right now. is there any way to put a number on that? >> ten, a dozen, a hundred. >> i honestly don't know. >> that's a fair answer. we don't know either. don, if it has to be an official boat, it would be great if we

could put some kind of receiver on every fishing vessel. not a ten-foot skif. then, we would be able to really cover some ground. >> my question to him is that you said this is fairly reliable. what is your explanation, then, for nothing right now? >> the only thing i could guess is they are not in the area. you have heard of the proverbial looking for a needle in a hey stack. they haven't found the haystack. hopefully, they will find it soon. it is good up to two miles. we can only hope and pray they find it as soon as humanly possible. >> you said they are not looking in the right place. would that lead you to believe over land or water that they are not looking in the right place? >> it is over land that i would imagine that the possibilities

are greater that it would be picked up somewhere by someone listening, depending on how many people. over water, maybe not. >> it is quite possible. the device we manufacture only operates in watter it. it is a completely different system on the aircraft if it were picked up. >> not over land. that particular tracking device, not over land. this is only over water. >> exactly. it is an under-water locator beacon. >> thank you. appreciate it. good information. >> chad, we will get back to you. up next, a look at some of the histories of histories greatest mysteries, from amelia earhart's disappearance and the disappearance of natalie wood and the death of marilyn monroe. what if a piece of debris is snound break down what it is like diving looking for that plane for the diving teams. we will be searching for the

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the disappearance offer malaysia airlines flights 370 may become one of history's biggest mysteries and leaves us with no firm answers. some wonder about at

assassination of president kennedy and the death of marilyn monroe. we have more on the conspiracy theories linked to the biggest uninvolved mysteries. >> even when there are plausible explanations. >> like the bobby kennedy case, like amelia earhart. >> reporter: the answers don't always satisfy. >> i think mysteries mean questions. the strait of gibb brawl tar, 100 years ago, what happened to the crew, pirates, perhaps a sea monster. all popular theories debunked in this 2007 documentary, which tells us what didn't happen but doesn't tell us what did. 77 years after amelia earhart disappeared during her trip around the world, the search continues. wreckage has never been found. and los angeles county where new questions have come to light about the long-debated death of

actress, natalie wood. in 1981, it was ruled an accidental drowning. in 2012, a coroner changes the death scertificate, drowning an other undetermined factors. ♪ >> marilyn monroe. in 1962, her death was called a probable suicide. an overdose of bar bit tu ats. how did her internal organs disappear at the morgue? for sceptics, what about her links to john f. kennedy, robert kennedy, the various crime bosses? >> i have talked to at least 40 people that talked to her before she died and said how happy she was, how excited and how she made plans for the next day and then all of the sudden, she is dead. >> president kennedy's death shocking the nation and causing

confusion. could there be a second shooter? >> the church committee concluded unanimously that there was at least two different gunmen but yet that's been denied by others. >> it may be the greatest mystery in american history. lee harvey oswald was ruled the only assassin. 60 years later, a gallup poll shows 60% of americans don't believe it. >> those are just a few of the stories that have long fueled speculation and a string of conspiracy theories. to learn more about them and read more of history's greatest mysteries, you, check out cnn.com. don? >> alexandra field, thank you very much. >> good evening. i'm don lemon. getting very close to the top of the hour, this is cnn's special live coverage of the disappearance of malaysian airlines flight 370. it is the boeing 777. it has missing for ten days with 239 people on board. here is what's new tonight in the search for the plane and the

search for clues, any clues. so far, there are not many. they don't point to any solid conclusions. where the flight originated? malaysia. officials are finding out all they can about the pilot and co-pilot. they were in control at takeoff. something bad happened intentionally or not. police are also interviewing airline mechanics, cleaning crews, anybody that touched that airplane before it left the ground. that's back in malaysia on land, the area where the aircraft could be is enormous. 25 countries have sent search planes and ships but considering all plausible theories, that 777 could literally be anywhere on earth by now, anywhere. the u.s. navy is out there searching the indian ocean. stay there. i'm going to talk to an officer on board the "uss blue ridge." first, jim clancy in