Good morning to you, gio. Reporter amy, good morning to you. The rain is still coming down and there is just so much debris all over the place. This house and barn just completely destroyed. And were seeing damage like this all across the east. Overnight, a tornado emergency. Twisters touching down along the east coast, state of emergency issued in virginia after a tornado went tearing through the farming town of waverly. Everything on main street is down, damaged, some houses. One house was caught on fire. Reporter four people were killed including a toddler. The search continues this morning for more victims. In north carolina, this twister caught on camera. Terrifying. Shaking. Reporter seven houses ripped major damage. Its amazing that no one is hurt with all the damage we had. Reporter in the midwest whiteout conditions creating highways littered with cars in illinois after nearly a foot of wet snow fell. Overnight torrential rains slamming the northeast, blinding conditions forcing drivers to pull off roads. Winds packing such a powerful punch, this semi tractor trailer getting knocked to its side on the heavily traveled George Washington bridge. Power lines down and igniting across new jersey and in philadelphia, winds dropping trees on cars and houses. The storm forcing nearly 3,000 flight cancellations, 1,200 flights into and out of chicago alone. And back here in lancaster, pennsylvania, we can tell you the National Weather service will be coming out to look at this damage to see if that was caused by a tornado or not but the good news right now, perhaps a miracle, no injuries and no deaths reported, sam. Unbelievable, gio and the damage there so what theyll look for is whether the Straight Line wins was such a pushing there was a twist. If there is a twist, pow, tornado. Now, if you think that february storms arent powerful look at the size of that tornado. This is just one of them we were talking about. That one in evergreen, virginia. Now to waverly, virginia, a town waking up this morning destroyed. A town thats looking around and realizing that at least three members of their community are dead this morning. Phillip mena is there live. Hey, phillip, just tell us what you see around there. Again, monster storm. Reporter absolutely, sam. Good morning. The devastation in this town is just striking and as you mentioned, right here is where those three people were killed including that toddler but there are no signs of the trailer they were in when the storm hit, all thats left are these piles of lumber and twisted metal and over there, the remnants of what was just yesterday a functioning laundromat and right now you can just see the washing machines just lined up there in the open air. Authorities here are still assessing the damage, we are told. But its going to take months to rebuild, so, sam, just as you mentioned just a devastating blow to this community. I got to tell you when people walk out the door and they cant realize where their streets are or where the markers that they knew every day in in their neighborhood its unbelievable. This storm isnt done. We have power behind it. Weve got a big blast of cold air, some areas will still get snow. Snow wrapping around the great lakes and in it was a big snow system as well, 15 inches in indiana. 10 near flint, michigan. This cold air charges in and these are the storm warnings still out for that. So watch that low pull away then know weve got some big changes in the northeast all the way in the great lakes coming. Watch these temperatures from the 50s today, pow, to the 20s friday morning. Saturday morning, just 12 degrees in burlington, sunday, 31 degree. Cold air in new york city, it bounces back by the end of the weekend but right now its cold and windy coming in behind all that storm damage. Okay, sam, thanks very much. The white house. Its your voice, your vote and with super tuesday just five days away, donald trump has lots of momentum after three straight wins. Tonights gop debate may be the last best chance for his rivals to shake things up. Jon karl has all the latest. Reporter were down to just five candidates on the stage tonight. If the others cant find a way to slow trump down, it wont be long until were down to one. At a predebate rally in houston, marco rubio showed a new willingness to take on donald trump. Questioning whether hes ready to be commander in chief. You cant just say when i get there ill hire the smartest people and theyll tell me what to do. Reporter in a fox news Forum Last Night both rubio and ted cruz questioned trumps conservative credentials. We are not going to allow the conservative movement to be defined by a nominee who isnt a conservative. Donald wins the general election, who the heck nows what hed do as president. I mean, you know, we need a president we can trust. Taking fire from the last gop nominee, mitt romney, over his unreleased tax returns. I think we have good reason to believe that theres a bombshell in Donald Trumps taxes. When people decide they dont want to give you their taxes its usually because theres something they dont want you to see. Reporter trump fired back tweeting that romney, quote, blew an election that should have been won and is now playing the tough guy. Coming off three straight wins, trump now seems confident hes on his way to the nomination. I mean, its going to be an amazing two months. [ cheers and applause ] we might not even need the two months, folks, to be honest, all right. Reporter hes even musing about his potential Vice President ial pick. The outsider saying he may go with a washington insider. I do want somebody thats political because i want to get lots of great legislation that we all want passed thats just sitting there for years and years and years. Reporter trump is also just yesterday, george, he was endorsed by two junior members of congress, his very first congressional endorsements but as he told you just yesterday, endorsements are a, quote, waste of time. He did say that. Youre in front of that board. Lets give everyone a sense of why we call it super tuesday. Whats at stake . This is the single biggest day of the entire primary. Nearly 600 delegates at stake, about half you would need to clinch the nomination. Youve got most of the big states in the south, a little bit of new england, a little bit of the midwest and, george, this is also where you can continue to get delegates even with a second or third place finish. Donald trump ahead in most of the polls in most of those states right now so both rubio and cruz have to find somewhere to get a win. Reporter especially ted cruz. His home state votes, he has to win texas and his entire campaign has been based on winning in the south. If he cant find a way to win there its lights out for that campaign. As for marco rubio its unclear where he can win but you can time. A lot of time in minnesota, virginia, tennessee, oklahoma, unclear which of those states he can win but hes got to show he can win somewhere. Okay, jon, to matt dowd in texas where the Republican Debate will be held tonight. This debate is maybe the last best chance for cruz and rubio to shake things up. Up until now theyve been going at each other more than they have at trump. Weve seen evidence that ted cruz is willing to take on donald trump but i think the real question mark is on the same stage can Marco Rubio Donald trump . And i think nobody knows the answer to that question. I think theres an an internal debate in the campaign whether they confront donald trump on the stage tonight or leave him alone and continue on the way. So i think thats the Million Dollar question. Will marco rubio take on donald trump on stage tonight . Will anyone pick up on this mitt romney weighing in on the campaign yesterday saying there might be a bombshell in Donald Trumps tax returns. Of course, he faced questions, as well. You think anyone will pick up that attack . It seems a bizarre line of attack by mitt romney who as you say was attacked on his taxes by harry reid in the course of this. My advice to mitt romney, theres a lot of vulnerabilities donald trump has but dont go after donald trump on tax returns, wealth or car elevators. Okay, matt dowd, thanks very much. Youll join us on super tuesday. You all can stay with us on super tuesday. Ill be here with our whole political time plus full coverage on gma and world news tonight. Now to another battle, this one between apple and the government over National Security and privacy. In an abc news exclusive world news tonight anchor david muir sat down oneonone with apple ceo tim cook to find out why the company is refusing the governments request to unlock the san antonio killers iphone. As we sit here you know some of the families of the victims in San Bernardino have now come out in support of the judges order that apple help the fbi unlock that iphone. One family reportedly saying why apple is refusing to do this. What would you say to those families tonight. David, they have our deepest sympathy. What theyve been through, no one should have to go through. Apple has cooperated with the fbi fully in this case. They came to us and asked us for all the information we had on this phone and we gave everything that we had. But this case is not about one phone, this case is about the future. What is at stake here is can the government compel apple to write software that we believe would make hundreds of millions of customers vulnerable around the world including the u. S. Youd have to write that system in order to unlock that phone. Yes. Yes, this is we have no more information about this phone. The only way to get information at least currently the only way we know would be to write a piece of software that we view as sort of the software we think its bad news to write. We would never write it. We have never written it. And that is what is at stake here. The fbi says it believes syed farook used that phone to communicate with his wife, his accomplice and im curious, do you struggle at all with the possibility there could be information on that phone that could reveal other plots, other people who were involved in planning the San Bernardino attack . David, if we knew a way to get the information on the phone that we havent already given, if we knew a way to do in that would not expose hundreds of millions of other people to issues, we would obviously do it. But in your quiet moments do you have any concern that you might be able to prevent a terrorist attack by breaking into that phone . David, some things are hard, and some things are right, and some things are both. This is one of those things. And in this case, you believe there are some things that just should never be created. Correct. As we walked across the apple that this would have been steve jobs 61st birthday, cook says not a day goes by he doesnt think about his iconic predecessor. I did think about what he would do and i am so convinced knowing steve, steve always did what he thought was right and it is so clear to me that he loved what america was founded on so much and would do nothing to put all these customers at risk. Hed be doing the same thing. And joining me now abcs senior justice correspondent Pierre Thomas and abcs chief legal analyst dan abrams. Good morning to both of you. Good morning. Good morning. Pierre, one of the points cook makes if apple grants this request they may ask again it will set precedent. What are the feds saying about that. Amy, i spoke to a number of senior government officials and theyre just not buying cooks arguments. They say this is not about mass surveillance at all. One official told me the fbi way into that phone that will be known only to them. He admitted that the fbi and other Police Agencies will likely come to apple with new requests in the future but each time each agency must convince a court to approve a search warrant and emphasized the San Bernardino investigation remains urgent because the killer couple swore allegiance to isis and said they need to know if others were involved and if anything else is out there. Publicly were talking about National Security versus privacy but legally its more defined than that. Refer, phone company, Computer Companies have been assisted the government in investigations and thereby violating peoples privacy forever and the Supreme Court has upheld it. The legal question here is effectively is in that much different . Is this whats called an undue burden on apple . And thats as much a technological question as it is legal. The federal response, what are they saying about these threats reportedly made by isis against Mark Zuckerberg . The leaders of facebook and twitter have been the subject of openly have stated plans to try to block the broad social Media Campaign from isis. But a number of security analysts are skeptical of the videos credibility and whether this group really has the means to carry out that attack. Thank you so much. George, over to you. Well get the latest on that deadly rampage in michigan and learning what jason dalton was in the days before he did that. Abcs alex perez has an exclusive interview. Reporter this morning, the attorney for uber driver Jason Daltons wife and parents speaking out exclusively to abc news. Whats important to them is remembering the people who were hurt. Reporter the attorney revealing new details about daltons behavior in the days leading up to the shooting rampage that took the lives of six people. He was acting different in the last couple of days, his wife asked him and he said he was tired. What made him think he was acting differently. Down which was not his normal character. Reporter he only began driving for uber in the weeks leading up to it facing six counts of murder. What were they thinking . They were thinking like everybody else, why. Reporter the motive for now remaining a mystery to even his family. Jason by all accounts was a fairly gregarious character, a good father, well known in the community. Well liked. And there was nothing to indicate that Something Like this would occur. Reporter as new details reveal that dalton went to his parents house after the first shooting occurred at this residential complex telling his family that his chevy equinox had been sideswiped and he needed to switch cars eventually taking his parents chevy hhr before heading back out. And then a few hours after that police arrived. Thats correct. Police told carol what happened. Reporter at that moment was she in disbelief . Shes still in disbelief. Reporter for Good Morning America, alex perez, abc news, kalamazoo, michigan. Thanks to alex for that. Amy, you have startling new video. This shows just how dangerous ecigarette batteries can be. A man was putting change in his pocket. Look at that. It happened at a gas station when his ecigarette battery exploded lighting his pants on fire. The clerk ran after him with a fire extinguisher. The man suffered seconddegree burns and as ecigarette batteries become more popular more battery mishaps reported so that is certainly a warning for everyone and talking about some really incredible video, youve got the elephant video. Another warning, if you see way. We have another dramatic video that comes from africa. Not from amys safari this week which was amazing itself but from a u. S. Senator learning about poaching on a Factfinding Mission when he was charged by these elephants protecting their young. He got too close. Themselves. Got a little too close and he is there sponsoring a bill to crack down on poaching which helps fund terrorist groups in africa out there for a good cause. I got to tell you when you see those elephants up close, those tusks are incredibly large. You do not want to be anywhere near that. Every animal in africa is a lot bigger than on tv. I found that out firsthand. We got to get to sam. More on those wins. When youre cleaning up today after all these storms, got a lot of trees down and power outages, the winds are still strong during the day. 35, 40mileperhour wind ace 80mileperhour winds. Now dot com have a fling. To get more named storms yesterday are now out of the picture but we still have very windy conditions so the winds gusting thirty to forty mph today so hold onto your hats really be careful out there especially across from the bridge is going to be traveling to hands on the wheel very important temperatures today close to fifty six for the afternoon it is going to be partly sunny a few hours maybe a degree or two warmer off to the north may be slightly cooler coming up next on gma emotional testimony in erin andrews 75 million lawsuit. Her father breaking down on the stand. A warning about what you post online. A dozen students targeted after media. Hort, talk is cheap. Ill be working while you sleep. Still dont think ive got a brain . 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