Andreas loubas only job to fly people safely to their destination, instead flew them to their deaths locking his captain out of the airbus a 320 flight deck aiming into the french alps. The flight tracking web site flight radar 24 showing data he set the autopilot as low as it would go sealing the fate of 149 lives. Tonight, all the questions being raised about what possessed him to do it and how airlines can spot a rogue pilot if they can at all. Also reassessing the cockpit security measures that have so far prevented another 9 11 but cannot stop an inside job. Live for the next two hours because theres a lot to cover. Taking your questions on that and Everything Else people are talking about. We begin with justice correspondent pamela brown with the very latest on the investigation. Reporter tonight, investigators remove boxes from 27yearold german native andreas apartment the man who deliberately crashed 9525 into the french alps. The ceo of lufthansa said loubits was an experienced pilot with more than 600 hours of Flight Experience a good record. 100 fit to fly without restrictions. His flight performance was perfect. There was nothing to worry about. Reporter loubits passed initial medical screening. The airline does not do ongoing psychological testing leaving open the possibility something could have changed after loubits began his job at germanwings in 2013. He said lubitz at one point interrupted training for several months in 2008. He wouldnt explain why but said lubitz eventually completed training. I went to the Aviation School in phoenix, arizona. They underwent training there. There was an interruption with regard to the training and after then the candidate managed to go through. He continued his training. Reporter a pilot who was a flight club member with lubitz said he never showed any signs anything was wrong. As far as im concerned, i could say he was a very normal young man. Nothing out of the ordinary. Nothing at all. There were no accidents that im aware of. Nothing. No incidents whatsoever. Reporter another flight club member said lubitz enjoyed his training. He was a lot of fun. Even though he was perhaps sometimes a bit quiet. He was just another boy like so many others here. He was well integrated and i think he had a lot of fun here. Reporter why he would deliberately steer flight 9525 for nearly 10 minutes into the french alps remains a mystery. Translator i cant understand it. Well have to wait and see for the investigation to continue. Reporter the fbi is in a support role in the investigation on stand by waiting to see what help it can offer to the french and germans leading this investigation right now and investigators are interviewing those who knew lubi lubitz and anything he had his hands on. His relationship, medical history, and any political views he may have had. Anderson . Pamela thank youofficials were speechless. Shock from the news and across the crash site itself where lufthansa has brought grieving family members flying them in from barcelona and dusseldorf. That shock felt in the copilots hometown of montabower germany. Looking for things they missed and searching at his parents home. In the town she joins us tonight. Whats the latest there on the investigation . Reporter hi anderson. Im just up the road from the house where lubitz was brought up. He used to deliver papers as a little boy and his parents left that house down the road this morning to fly to marce as yet another grieving set of parents. They thought they would be going to mourn the loss of their son and now they are hearing from the state prosecutor that their son may have been a monster who caused the loss of these people. Investigators today were in that house. They brought out boxes including servers, what looked Like Computers and they were also investigating the flat in dusseldorf which he had and he split his time really between the two, sifting through for evidence that would in any way indicate his psychological state at the time of the crash and why he did what he did, anderson. How can you imagine those parents who thought their child who was a victim of this only to learn on their way there that in fact hes not a victim at all. That he caused this hes not just a person who committed suicide, hes a person who apparently has committed mass murder. I know youve been talking to people who knew the copilot. What did they say . Reporter well to a certain extent the city and its quite a smallknit community is in lockdown. You know the worlds media has descended on them and ive got the impression those people who did really knew him are tight lipped about it. I talked to a few of his peers, people of his age. He was 27. Saying i knew him but were not talking to you. That is that. We came here very soon after the prosecutor made his accusations and already the word had spread. The only real information weve got so far was from this gliding flight club where hed spent much of his teenage years going to learn to glide where they said they couldnt imagine what a change this man, they didnt believe that he could have been the man, a man who would drive a plane into a Mountain Side hed been a regular guy and enjoyed, felt proud of the fact he was a germanwings pilot and that he made his passion his hobby into his career. And that was really all that they could say about it. But it certainly doesnt add up to a picture of why he did what he did, anderson. Rarely does, particularly in the early hours and days. I appreciate the reporting, diana. The heart of the data recorder we dont know precisely what the copilot did to bring the plane down. We know what he and the captain said as well as his breathing and a number of alarms picked up on the voice recorder. We obviously do not have the complete picture of yet. But the sketch we do have raises to say the least a lot of questions. Cnn aviation correspondent Richard Quest joins us and cnn safety analyst and former investigative. Former ntsb managing director peter goelz and with us airbus captain ron stock. I appreciate you being with us. The news that the auto pilot was reprogrammed from 20, excuse me 38,000 feet to 100 feet another piece of the puzzle coming together. This was a deliberate act. Absolutely. And its scotched any ideas that somehow there was a medical emergency, that he had slumped on the controls. Nothing like this. What we heard from the prosecutor was that he had dialled in the descent. And we wondered how they knew about this because they havent got the data recorder. Well it is information that comes from the transponder or one of the transponder frequencies where you can see the, on the list of data it goes from 38,000 to 96 is what he put it. And then sits back calmly as were led to believe and does nothing. This i was prepared to sort of give the benefit of the doubt in every different direction until we heard the prosecutor until we heard the airline ceo saying im speechless that an aircraft has been crashed by the cause of my own copilot. All day long i cannot get out of my mind the idea that for those 8 minutes, he sat there looking out at the approaching mountain not saying anything and just the sound of his breath and the gradual sounds of screams of the passengers. He will have had happening around him. Besides the noise of the aircraft, the sound of the banging of the door, the sound of any alarms going off as they get towards the ground the sound of air Traffic Control calling out constantly we now know they were calling out constantly and then the sounds of the screams of passengers, which to have been picked up on the microphones on the other side of a locked door gives you a horrific idea. We know the egypt air pilot believed to have brought down that plane i think in 19 99, if im not wrong, we know he mumbled something close to a prayer before the plane was brought down. Ron, im very glad youre on the program tonight because you have extensive experience with exactly this plane the a320 and so much focus on the door lock switch and why the pilot could not get back in. Can you just explain how that works . Yes. Essentially, its a threepositioned toggle switch which is Spring Loaded to the center position. If you move the switch to the forward position it will unlock the door. If you let go of the switch it returns to the center position. Wrb whereby is door is locked again. Theres the back position or rear wood position which is a locked position and essentially what that does is disables the whole emergency entrance procedure. It disables the buzzers that rings in the cockpit. Essentially, locks everybody out of the cockpit. So if a pilot wants to remain locked in to that cockpit there, you hit that lock switch and its a time switch but nobody will get into the cockpit. We dont yet know whether the pilot who was locked outside actually tried to enter in the emergency code that would have granted him access but it almost doesnt matter because the copilot who was at the controls could have just toggled it down to the locked position and that would have overridden any attempts from the outside to get in correct . That is correct. He can override it. Like i said its a timed switch. 57 5 to 20 minutes. Locks everybody out. Each time it resets and you reenter the emergency code all the copilot would have had to do is place the switch back into the locked position that would reset the timer again. So every time the pilot, if in fact the pilot was entering the code if he remembered to do that, every time the copilot would have had to load it back to the locked position . Exactly. Yes. Exactly. After that time whether it be a 15minute lockout, that resets the system and then potentially the captain could reenter the emergency code. Which sets off a continuous buzzer in the cockpit. And then all the copilot would have had to do is to take that switch back to the locked position again. Its interesting, david soucie. So essentially, the copilot would have been getting warning that the pilot was entering the code and trying to get in and i assume that would already be known to authorities because the sound of that alarm would be picked up by the microphone. It most certainly would. Voice recorder. Yes, so loud that it would overcome other sounds in there that have to be distinguished within the analysis later. David, in terms of what we learned today, as an investigator what stands out to you . I tell you, it all fits. When you find the answer it all seems to fall in place like its supposed to. In this case it does in my mind. With one exception. And richard may have answers for this because we had discussed it earlier, but if he did select the descent and this is something we need to ask ron, wouldnt that descent be smooth and straight . I would think it would be. But this has some anomalies in it. It has changes in it. That could be because he inputted some control and tried to move it. Ron, what do you make of that . First off, the airplane will not leave on the autopilot, altitude without pilot intervention. You have to physically reach up there, reselect a new altitude and then move that selector switch either push it or pull it depending upon what kind of descent you want to do. You have to physically move that switch to get that aircraft to initiate that descent. And there are different ways that you can make the airplane descend. Peter, they have yet located one of the recorders. What can we learn from the flight data that we dont know now . I think weve got the major pieces but you would want to confirm exactly what the pilot was doing during the final moments. It will confirm whether, when he put the new altitude in it will confirm whether he had done anything prior to that. Had he tried this out during the preflight . Was there any other Warning Signals prior to this terrible event taking place . But i think the voice recorder has told the tale and it is a very sad one. Yes, sickening, indeed. Everyone stay with us. Theres a lot more to talk about. We are on until the 10 00 hour tonight. Live for two hours and well be taking your questions as well. You can tweet them using using germanwingsqs. Later, how officer lubitz used the door to stop anyone on the other side. And hard as it is to believe as we mentioned, this is not the first such incident. We explore parallels to this one and what we can perhaps learn from them. Fact. Fastacting advil is designed with an ultrathin coating and fast absorbing advil Ion Core Technology stopping headaches and other tough pain. Fast. Relief doesnt get any better than this. Advil. The promise of the cloud is that every organization has unlimited access to information, no matter where they are. The microsoft cloud gives our team the power to instantly deliver critical information to people, whenever they need it. Here at accuweather we get up to 10 billion Data Requests every day. The cloud allows us to scale up so we can handle that volume. 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We started focusing on the airbus a 320s cockpit door. We looked at measures put in place after 9 11 for keeping terrorists off the flight deck that in this case sadly locked out the pilot. Our gary tuchman spent the day at a huge bone yard in californias mojave desert. Heres what he discovered about the doors and what the captain was up against. Reporter stores airplanes no longer being used here but this boeing 737 was flown after 9 11 so it has a reinforced cockpit door. We want to give you a close up look at how it works. The 737 was moth balled less than a year ago. The locking system on these reinforced doors is very similar to the locking system you would have in an airbus a 320 that crashed in france. Hes the director of Southern California aviation. What is this door made of . This reinforcement . This is an inch and a half thick of kevlar with some steel. Its a kevlar door. Reporter unlike the airbus this is a key lock . This is a key override system. Reporter but it has what the airbus has. A numbering system. What is that for . A key pad to punch in the code that will unlock this door. Reporter okay. What can destroy this door anything . Virtually nothing. They are very indestructible. Reporter can i kick it . You can kick it. Reporter yeah. Yeah. I mean you can tell that its pretty indestructible. Thats correct. Reporter okay. Lets go inside. Now were going to show how the pilots lock the door from inside the cockpit. Why dont you come back in here now and well close the door. This is the switching question. This is the switch on the boeing 737. There are three settings. Auto unlock and deny. You leave out auto what does that mean . The normal setting of this to stay in the auto position. Reporter it says normal on the airbus but this is normal. Leave it is door locked but if someone knows the number combination to press the numbers and the door will open the pilots want them to come . Thats correct. Hes got or he can deny. Reporter thats what i want to ask you. If he doesnt want them to come in he or she puts it on deny. And then once its on deny no one can get in this cockpit. Thats right. Reporter and five minutes later, they can get it on deny but then no one is getting in here. He has to switch it every time he wants deny. Reporter every five minutes to deny. Puts it on unlock its obvious that will unlock the door and somebody could come . Yes. Reporter and one interesting thing is this tv monitor. This is not an all american planes on some american planes but what are you seeing on this monitor . From this monitor, most of the systems have three cameras outside the door. And they can take look at multiple views of whos outside the door. Reporter so you can see whos out the door it would be a great thing to have on every plane. Thats correct. So youll also have this people right here to where they can physically see through whos out the door. Reporter these reinforced cockpit doors keep people safer but as weve seen in this case it kept people out who needed to get in. Gary tuchman joins us now. Gary so is there a manual way too lock the door . How does it work . Reporter yeah theres some Old Fashioned technology on the 737. Ill show you. Its a dead bolt. Like to see in your apartment or house. The way this works right now, its unlocked in this setting. And then when you take this and move it into a plus its locked but then you can use a key on the 737 and it will open the door. And then theres one final setting and that is the locked key inoperable. You will not be able to get in the door. If i close it right now and put it into the key inoperable and if you were outside, theres no way you could ever get in here unless i decided to open the door and let you . Gary appreciate that. Back with our panel, Richard Quest, david soucie ron stock who flies the a320. And also peter goelz. David, do you think something is going to now change because of this . We know lufthansa does not have a regulation and there isnt a legal requirement that they have a second person in the cockpit at all times. Do you think thats likely to change . I think its started to change. A lot of air carriers stepped forward. This is something weve seen. They move forward without regulations waiting to happen. This is reflective of the Safety Culture developing in the airlines worldwide, really. Before this they would wait until that regulation came out. They didnt want to waste money on something that wouldnt satisfy the regulation. Now they go step forward and do things right away. Richard, the ceo of lufthansa said no nothing could have prevented a pilot from doing that if there was a second person in the cockpit. You could argue perhaps they could have at least opened the the door wrestled with the pilot, something. Yes. Said the existing system had worked for many decades. And that before they were going to change it they were going to make sure that what they were going to do doesnt, a, either create another problem but theyve got to look carefully. Today, we have in europe norwegian, air canada announced they will do two people in the cockpit. That door that weve just been looking at