Well hear from them this morning. And this incredible collision midair caught frame after frame. The plane colliding with a skydiver. And then crashes nose first into the ground. How did they survive with just minor injuries . Both men speak out this morning. It was just unimaginable to me that there was an aircraft about to hit me. And good morning, america. Josh off today. Great to have amy right here with us. This mystery over Malaysia Flight 370. Literally no solid clues right now. One example that we just learned that tests now show that the oil slick on the water is actually not, not from the vanished plane. First speculation that it could be. But were just learning that is not the case. Heres what we do know. No debris has been found. Despite earlier reports. 40 ships, 34 planes are still searching right now. Investigators still looking into at least four people on that flight. And search and rescue continues right now. Lets get right to the latest on the massive investigation. Officials poring over images of all the passengers. Our entire team working through the night to track this tragedy. Pierre thomas starts us off. Good morning, pierre. Reporter good morning, george. Three days and counting and no sign of that plane. Malaysian Authorities Say they cant rule out anything, even a hijacking. Malaysian officials still baffled. Talk about people hijacked. And this is not but we are looking at every angle. Reporter this morning, an urgent investigation is under way to identify two imposters who boarded that mysterious plane using stolen passports. This is the real luigi, happy to be alive and not aboard the infamous malaysian flight 370. His passport, along with anothers were stolen in thailand months ago. This morning, an urgent investigation is under way to identify the imposters who boarded the fateful flight using those stolen passports. Surveillance video can be used. I can confirm we have visuals on them. I also can confirm that the two individuals concerned and the details have been forwarded to the intelligence agencies. Reporter the fbi and other u. S. Intelligence agencies are hoping to get that video and compare it to images of known terrorists and criminals from around the world. Using facial recognition technology. It will be a matter of time. Theyll probably identify them. Reporter the two oneway tickets appear to have been bought at the same time in a travel agency in a thai resort town of pattaya. South of bangkok. Malaysian authorities could not answer why the men were able to board that flight using stolen passports. Interpol keeps records of stolen passports. They said they were not contacted by malaysian authorities. The interpol chief said why should countries wait for a tragedy . He said, last year alone, passengers around the world boarded planes more than a billion times without having their passports screened against interpol databases. That amounts to a gaping hole in security for both criminals and terrorists. Sources say, without the black boxes or debris, its impossible to know what happened. They also say that the stolen passports could be tied to drugrunning and unrelated to the planes disappearance. A true mystery, george. It sure is, pierre. The big question, is this an act of terrorism . Brian ross here with more on this. So far, one sketchy claim of responsibility from a group called the chinese martyrs brigade. Thats right, george. Very sketchy. Theres no way to authenticate it. They do claim responsibility saying if you kill one of us, well kill 100 of yours. But no details in that letter. A lot of skepticism about that claim. There is an issue involving a chinese ethnic muslim group who have claimed that malaysia has forcibly returned members of their group that have gone there for asylum. This is not an area known for al qaeda. Youre right. They have been decimated by actions by the u. S. And of course, alasct al qaeda r shy about claiming responsibility even for things they havent done. Brian, we have two previous examples, twa flight 800, that air France Flight that disappeared, at first thought to be terrorism, then turned out not to be. Thats right. Both thought to be terrorism, but both turned out to be plane malfunctions or pilot error. The key to solving the mystery is finding type of debris and the black boxes. Abcs bob woodruff is in beijing with that part of the story. Reporter this morning, more than 30 aircrafts and 40 ships are now part of a massive multinational effort to find out what happened to this jet. We consider this still a search effort to look for survivors. Reporter so far, there has been no signal from the black box of the missing boeing 777 and no sign of the plane. Officials say the plane made no distress call. Malaysian Authorities Say military radar suggests the plane might have been turning back to kuala lumpur. On sunday, debris thought to be the planes door was spotted but it hasnt been spotted. This morning, authorities confirm that oil slick samples found in the South China Sea are not from the aircraft. Meanwhile, anxious families and friends are gathered in this beijing hotel, swarming officials and bracing themselves for grim news. We believe that the Family Members should prepare themselves for the worst. Reporter for the family of 50yearold american passenger philip wood, the wait has been agonizing. His father, barely able to speak. Great son. He had a big, big heart. He, uh he liked to travel. Reporter wood, an ibm executive based in asia, had just recently returned to texas, to visit his family, including his two sons, nick and chris. If he was here right now, he would comfort me and say dont be sad. Ill never really give up hope. But that doesnt mean that i wont accept that he may not come back. We may not see him again. Odds are we wont see him again. Thats okay. Reporter this is the hotel where the families have been living all these days. Theyve been praying and hoping something would be found in the sea. The fact that the oil is not from the plane is really upsetting them. Also, theres another one this morning, they thought they had found a raft from the plane in the sea. It turns out it was actually a circular cable reel instead. Thats not there either. This is still very much a mystery. Robin . It is, bob. For more, aviation consultant Stephen Ganyard joins us from washington. No emergency transmission before the plane disappeared. What does that tell you . Robin, i cant begin to guess what happened. It was probably something that was either very catastrophic that happened immediately. And there was no chance of making a transmission. Or there was a problem in the cockpit that the crew was so absorbed with that before it ended up in a catastrophe that they were not able or didnt have time to make any communications. Steve, let me ask you this. In a time when technology is so advanced, why is it that the black box information is only available on the plane and not transmitted, say, back to air Traffic Control . That is a really good question, and that question is being asked more and more after the air france disaster. In the past, its been a question of not enough money or not enough satellite coverage. I think youre exactly right. In this day and age, we should not lose an airplane like this and have it go missing for days on end. Its been a few days now and the hope was that by now something would have been spotted. Youre right. Im a bit concerned about the coordination of the rescue effort itself. There are a lot of nations involved. But it just seems that everybody is putting airplanes and ships out there. Doesnt seem like the malaysian government is putting things together the way it should be. And remember, were in race against time. We have 30 days, that pinger its a little audio pinger in that black box, its sending out a signal that says, im here, come find me. The clock is ticking. 30 days to go or we lose that pinger. The clock is ticking. Steve, thank you very much. Appreciate your insight. Lets get the mornings other top stories from amy. We begin with a powerful earthquake jolting the west coast overnight. The magnitude 6. 9 quake hit near eureka. Four miles beneath the ocean. Thousands of people from the bay area to oregon felt it. About half dozen aftershocks followed. But so far, no damage or injuries reported. President obama has invited ukraines Prime Minister to the white House Wednesday in a show of support. As tensions with russia escalate even higher. Ukraines leader says his country will not give up a single centimeter of land. But prorussian forces have now seized the final airfield in crimea city. The notorious drug lord known as the craziest one has been killed in a shootout. With marines in mexico. Authorities say that fingerprints confirmed Nazario Moreno died sunday. His death comes just weeks after the arrest of el chapo guzman. A big headline in the fight against alzheimers. A blood test has been shown to be 90 effective in predicting who gets alzheimers disease. Lower levels mean a higher likelihood of mental decline within three years. But doctors warn more research is needed, and it will be years before such a test is available. And finally, everyones been talking about that spelling bee that lasted so long. The judges ran out of words. But this one may rival that. This one was on the ice. Two High School Hockey teams from ohio fighting for the state championship this weekend. They were tied going into overtime. The second overtime, the third, the fourth. All the way through the seventh overtime. The players were exhausted, many were dehydrated. Finally, the state Commission Said enough and ruled that the teams have to share the state title. So everyone wins. Or no one wins. The fans were booing. I looked this up. I thought, why didnt they do a shootout . There are no National Rules allowing for a shootout. So, they were really concerned about the players safety and hell at that point. They could barely stand. So upset that no one got to do the yea, we won. We have a winner in the spelling bee. We finally have a winner there. Im not sure i like the call to call it a tie. I know. Youre so competitive. You want someone to win. Okay, thank you, amy. Were going to turn now to the latest on the stage collapse at a california high school. More than two dozen students sent to the hospital after it gave way. And now, investigators trying to figure out what caused this frightening accident. Bazi kanani has the story. Reporter watch as this joyful performance in a packed High School Auditorium changes in an instant from rally [ screaming ] to rescue. My classmates are crying. Everyone was in shock. Reporter here again, this cell phone video showing the heartstopping moment on saturday when part of the stage in anaheim, california, holding about 250 dancing teenagers collapses. All the girls in front of me just dropped. Reporter dozens of students falling ten feet into the theaters pit. Parents rushing to their children. Her ankle is broken. Reporter 24 students still in costumes taken by ambulance to local hospitals. This morning, investigators are looking into the cause of the collapse but say the main problem too many people, too much weight. We were all dancing. We have done this five times already. Reporter thats hundreds of people jumping on a small, wooden stage built more than 20 years ago. School officials are not releasing details about the Ongoing Investigation but tell abc news our thoughts and prayers are with the students and their families. Were going to get through this. Reporter this morning, the injured students are all back home, recovering from broken bones, scrapes, bruises, and the shock of it all. For Good Morning America, bazi kanani, abc news, los angeles. So thankful everybody is recovering. But now to a brandnew and heartwrenching interview with the father of sandy hook elementary shooter adam lanza. Opening up to the new yorker. Abcs john muller is here with much more on this story. Reporter robin, the interview is just chilling. The father of the boy responsible for one of the most horrible mass murders in American History saying he wishes his son had never been born. This morning, peter lanza is speaking out for the First Time Since his son, adam, killed 20 children and 6 teachers at sandy hook elementary school. That same day, adam killed his mother and then hours later took his own life. In an interview with the new yorker lanza says hes speaking out because i want people to be afraid of the fact that this could happen to them. It doesnt have to be understood to be real. Lanza describes his son as a cheerful child who loved sandy hook school. He even used his savings to buy christmas toys for needy children. But as the years passed, his son began to struggle in middle school after being diagnosed with aspergers, adiagnosis that adam refused to accept. Peter and nancy separated in 2001. Lanza now says he wishes adam had never been born, saying you cant get any more evil. Later continuing with hindsight, i know adam would have killed me in a heartbeat if he had had the chance. I dont question that for a minute. Now, 15 months after the massacre, peter has finally started going through the thousands of letters of support he has received. He has even met with two of the victims families. And said it was gutwrenching. A victims Family Member told me that they forgave adam. I didnt even know how to respond. He constantly thinks about what he might have done differently in his relationship with adam, saying no outcome could have been worse. And this article is online. Its chilling. Chilling, fascinating. You should read it. All right, thank you, john. Theres no easy way to shift to a different story. We do want to share a happier update for you all this morning. Its a story we have been covering. That longrunning spelling bee pitting a fifth grader against a seventh grader going at it for almost 100 rounds, determined to win. So, which one will go to the National Spelling bee . It is now over. Heres how the tie was finally broken. It was epic. A spelloff like no other. And after 95 rounds, 261 words, at long last, there was a champion. Seventh grader kush sharma finally crowned the winner of the spelling bee after he nailed the word definition. Definition. Definition. Reporter he nailed it. His opponent sophia misspelled stifling. The two have gone head to head 47 rounds the past year. After 66 rounds, the judges ran out of words and had to postpone the rest of the competition. Kush and sophia even went at it right here on gma. Capricious. That is correct. Archipelago. There you go. All right, theyre tied. Reporter kush now hopes to be the definition a winner at the Scripps National bee in may. It is an accomplishment. I think sophia really did an excellent job as well. Reporter she says she and kush are still closer than ever. Those words not the hardest that they did. They had much harder ones. I think you just get mentally exhausted. We wish kush all the best. I love those caps. I know. Thank you, lara. I didnt think you would come back from the keys, ginger zee. Yeah, i didnt think so either. But i have some spelling of my own. Spring. At least for a day or two. And then im going to spell another s word. Coming up here. 52 chicago. Kansas city and oklahoma, youre going to teal sunny and warm. Tomorrow, the northeast is going to be warm, too. But here it is, snow. Thats right. Snow from chicago. Oh. Oh. Locally, up to a foot. You get up into new hampshire. A wednesday into early thursday event for new england. So even though it wont be a huge snow event for d. C. Or philadelphia. New york city really not as much on the ground, it is going to be cold in behind. Tomorrow. Tomorrow. Coming up, startling testimony in the Oscar Pistorius murder trial. His Security Guard on the stand. The story is emotional this morning. Dan and nancy will weigh in live. Also ahead, the dramatic collision in midair between the skydiver and the small plane. How did they survive with just minor injuries . Both of them speak out just ahead. So many say being called bossy is bad for your little girl. The new movement right now. And its a huge morning on gma. A big reveal coming your way. Its all about you. Its all behind those doors. Wait for it. Its all behind those doors. Wait for it. At half the cost. Lets see if she notices. Brrrrrrrrr. 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