The fact that someone you loved and raised has brutally killed people in such a horrific way. And why she says shes talking now. And kanye wests nationwide party for his new album. The surprise guest and a new feud brewing this morning because of what hes singing about taylor swift. Are they about to have more bad blood . And we do say good morning, america. Good to have lara back from l. A. Baby, it is cold outside. Take a look at buffalo, where snow is piling up on the ground. Its 15 degrees. The wind chill, just 5. Two days until valentines day. Its goingngo get colder and colder. Build a fire. Get cozy. You guys are dressed for spring. Were willing it. Willing it. Its in your mind, and so it shall be. Taking aim at a lot of the country. Subzero temperatures expected from north dakota to new england. Its a little more than mind over matter. You can see my breath. Wind chills near zero. It will get colder through the next couple of days. The cold air filtering over the great lakes. Tremendous amounts of snow. Over three feet in some spots here in oswego, near fulton, east of ontario and lake erie is where the snow zone is. The tter cold will continue. Especially across lake michigan. These are the wind chills we expect sunday morning. This is what it will feel like against your skin. This is dangerous stuff. If youre going out, you have to cover up everything you can. Tomorrow morning, 2 degrees the actual temperature in chicago. And, similar numbers on sunday morning. So, not only have to take care of yourself but your pets, neighbors, your pipes. Any vulnerable spots in your home, you need to take care of that. In some cases, robin and george, this will be the coldest night back to you. All right there, rob. In decades. Now to the race for the white house. Your voice, your vote. The democratic candidates, Bernie Sanders and Hillary Clinton, getting heated. At last nights debate. Trading sharp words ahead of t next vote. Cecilia vega joins us in the studio. Good morning, cecilia. Reporter good morning to you. Both sides feeling the pressure. Last night, Bernie Sanders, to keep the momentum going. Hillary clinton to tap into the momentum. It was the formula for a heated rematch. Facing off for the First Time Since the New Hampshire landslide, Bernie Sanders feeling confident. Lets not insult the intelligence of the e erican people. People arent dumb. Reporter the battle lines drawn overnight on this debate stage. From health care. But i think the American People deserve to know specifically how this would work. The numbers dont add up and, many people will actually be now. That is absolutely inaccurate. Reporter to ties to president obama. Hes called him weak, a disappointment. Madame secretary, that is a low blow. One of us ran against barack obama. I was not that candidate. Reporter the contest now heading into South Carolina and nevada. And the race to appeal to black and latino voters at fever pitch. Were going to change policing practices. Were going to change incarceration practices. Race relations would be better under a sanders pridency than theyve been . Absolutely. Reporter Hillary Clinton hoping to recover from the embarrassing defeat, trying to show her dominance. Im not asking people to support me because im a woman. Im asking people to suppo me because i think im the most qualified, expxpienced, and ready person to be the president and the commander in chief. Reporter offstage, hoping to a a ndraising letter sasang im not kidding, maddi. Im asking you to give one dollar right this second. Spawning the hashtag im not kidding, maddi. Memes like the mcdonalds menu. Just a dollar right this second. All going viral. Certainly going viral. Bo sides claiming victory. No surprise there. What you did see is a shift in tone from Hillary Clinton last night. She didnt come out swinging as she has in past debates. Her goal is to paint herself as someone who can get the job done, to show sanders policies as unrealistic. It will be a theme for the next few weeks. Definitely heading into South Carolina and nevada. Tha you. We m me to the republicans right now. Its all about souththarolina. With most of the candidates trading blows ahead of their debate perform tomorrow, donald trump is trying a kinder, gentler approach. Look at this. He even signs a baby. Jon karl is tracking it. Ahead of tomorrows Republican Debate here in greenville, this republjcan race has turned into an allout brawl. Donald trump says hes going to try something different. He says hes going to go positive. Donald trump is so confident now, at a rally in louisiana overnight, he was already y looking ahead. To his reelection campaign. Im going to be there. Im going to do a great job. Hopefully, maybe i get an extra four years. Maybe i dont. Reporter in another sign of confidence, hes pulling negative adsdsrom the air in South Carolina and going he wants to make america great. Thats what i want, too. Reporter the other candidates are not turning the other cheek. Marco rubio rubio pulling no punches after his stumble in New Hampshire. Donald trump has zero foreign negotiating a hotel deal in another country is not Foreign Policy experience. Experience. Period. Reporter president ial politics can be rough and tumble. In South Carolina. Robocalls. A charge cruz denies. Somebody else is doing them, its not us. Reporter check out this new ad slamming trump on Eminent Domain. A pattern of sleaze stretching back decades. Worse, trump still supports Eminent Domain today. Reporter jeb bush also going after trump. We caught up with him. Are you going to be able to stop donald trump here . I hope so. Reporter why does he keep hitting you . He must be worried. Reporter inside, bush went on the attack. Do you want an entertainer in chief . Someone who will say whatever he wants, to make it all about him . Insult people . Divide people . Reporter bush was fired up. Back outside, he took motherly advice from a supporter. How tall are you . 64. You need to stand up straighter. Yes, maam. Reporter jeb bush is banking on family help to help revive his campaign here in South Carolina. His brother, former president george w. Bush, will head up a rally for him. The former president in fact the bush family remains popular among republica here in South Carolina. George. Lets bring in jeb bush. Governor, thank you for joining us this morning. Brother very popular in South Carolina. He got his way to the nomination by defeating john mccain there in 2000. I know you hope history repeats itself. Your brother is a sign of why not call on him earlier . What do you hope he can do for you now . Well, look, hes been supportive for a long while. This was the appropriate place for him to start his campaigning. This is the beginning of the campaign. What donald trump says about my brother has no relevance to this. Hes popular because he kept us safe. People here are promilitary. Proveterans. My brother served as commander in chief and people respect at. And nono were in a commander in chief primary. Commander in chief election. I think for my brother to speak on my behalf about the skills i have to lead this country will be helpful. The commander in chief primaries. Donald trump prepared to be commander in chief . He hasnt shown it. Hes not shown seriousness as it relateto the threat of ourur time. Isis, for r ample, hes gone from saying we dont have a dog in the fight to let isis take out assad. Let russia take out isis and his latest policy i guess is bomb the profanity out of isis. Thats not a serious plan. We need to lead the world to rid ourselves of a threat. Itit realal hes not being serious about that. I dont think hes a serious candidate in that regard. Look, hes preying on peoples angst and fears. He does it in a marvelous, fantastic way. Huge crowds. Lots of energy. Bubuthe simple fact is as it gets to specifics on Economic Security and National Security, he doesnt have one. Ononr. Trump than you have. You even said well be worse often than we are now if trump is elected president. How can you pledge to support him if hes the nominee if you believe that . I said in terms of divisiveness, well be worse off. We cant be worse off as it relates to the National Security of this country with Hillary Clinton as president or on economic issues, as well. In terms of dividing our country, thats the skill set of donald trump. Thats bad. And its wrong. You cant disparage women, hispanics, the disabled. People who are war heroes and expect well live in a country where we hava unity of purpose. The president of the United States has to use words carefully. Profanity and divisive language isnt going to help us to allow people to get a pay raise for the first time in a decade. Meantime, other candidates swinging hard at you. Marco rubio saying you have no Foreign Policy experience. John kasich is saying thats yeah, absolutely it is. When you compare marco rubios experience of going to Committee Hearings once in awhile. Thats not Foreign Policy experience. Look, i was the governor of the state of florida. I led the national guard. I had trade missions. Ive lived overseas. I have invested overseas. I have vast experience as it relates to the world. And im pretty fluent on Foreign Policy issues. I look forward to debating marco on these issues. We share a common belief that the United States needs to be engaged in the world. To suggest he has Foreign Policy experience and i dont is ludicrous. Came in fououh place in New Hampshire. Is South Carolina a must win . No, no, look, were in it for the long haul. Were on to nevada after souou carolina. Im looking forward to the ten days of hard campaigning. Were making good progress. The crowd sizes are great. People want to know. Who has the steady hand . Whwhcan make the tough decisions . Who cacahave the back of the military . Cuts . Who will take care of the veterans when they come home . That seems to be resonating here. Im focused on that and not worrying about the pundits. Governor bush, thank you for joining us this morning. Thanks, george. We move on from politics to breaking news overnight. A terrifying attack at a restaurant in columbus, ohio. A man with a machete targeting diners before Police Killed the suspect. Pierre thomas is in washington with the latest. Reporter good morning. Robin. It truly was a nightmare. Now the fbi is trying to figure out if it was terrorism. At 6 20 p. M. , the man carrying machete burst into t nazareth restaurant launching his attack. Ocking customers. No rhyme or reason as to who he was going after. As soon as he walked in, according to some of the witnesses, he went to the male and female just inside the door in a booth. At that point he started the attack. Reporter two men ran out to call 911. While those inside took matters some of the patrons started throwing chairs at him, trying to get him out of there. One of the employees was able to grab something from behind the register and came out. Reporter the suspect fled the restaurant. Jumping into a car. Witnesses describing the vehicle to police. Even taking video for evidence. Police caught up with the suspect a few miles from the restaurant. The man inside allegedly lunging at them with a knife. They tasered him. As the suspect lurched forward, officers shot him dead. Some witnesses say he came in a halfhour before the attack asking for the manager. Four victims going to local hospitals with one in critical condition. An intensive investigation under way to determine who the suspect is and whether h hwas inspired b bterrorists. Were going to turn to frightening moments now for passengers aboard an American Airlines flight. Smoke filled the cabin. Forced the plane to make an Emergency Landing in los good morning, david. Reporter g gd morning, george. Emergency crews were ready. And wait until you see the scene when they got the passengers off this morning, passengers are airlines jet partially fills and ground crews are alerted. We have an emergency inbound, give me about two minutes. Reporter the flight took off just before 10 00 in the morning. Not long, smoke engulfing the cockpit. He was on the oxygen mask. The masks had dropped in the cabin. That made concern to us. That we probably need to deploy more resources out to lax at that time. Reporter with their masks on, the pilots divert to los angeles for an Emergency Landing. There should never be smoke emanating from any part of the plane. Itit a pilots worst nightmare. To have to deal with either fire or smoke in an airplane. Reporter those emergency crews wereeady. Fire trucks surrounding the aircraft. The 125 passengers evacuated. The boarding area becoming an emergency triage with eight breathing difficulty. A lot of pandemonium here. People are scattered. Getting oxygen. A pretty, pretty scary day at l. A. X. Reporter where did the smoke come from . The possibility of a hydraulic leak is being investigated. American airlines saying our Maintenance Team is evaluating the aircraft. We apologize to our customers for the inconvenience. Many passengers dont realize the air you breathe inside the cabin comes tohe engines first. So if theres smoke in the engine theres a possibility its going to end up in the cabin or cockpit as well. I did not know that. Thank you, david. Lets go to amy for todays other top stories. An arrest in the cyberattack against the cia director. Thats right. British Police Arrested a teenager, they believe is behind a series of hacks aimed at National Security officials. Accounts of the top officials at the cia, fbi, and white house were compromised. Officials have not released the suspects name but say he is under age. Its being called a significant step toward a peace deal in syria. Secretary of state john kerry and his russian counterpart agreed overnight to a temporary halt in fighting by next week. Theres serious doubt whether the Syrian Government will go along. Dozens of Prison Guards in georgia are in custody, busted in a sting. The undercover investigation uncovered staggering corruption involving 46 current and former officers, accused of taking bribes and smuggling drugs. As well as other contraband. It could take a week to fully extinguish this fire in new jersey. The smoke visible for miles shut down a major roadway. No injuries reported. And ubub has agreed to pay 28 million to settle a classaction lawsuit over safety claims. The suit accused uber of making false statements about driver background checks. Theyre eligible for a refund. Look at this bizarre sight at bostons fenway park. A giant ramp wasasnstalled for the Winter Sports event last night. Athletes launching off that 140foot jump. The 2018 olympics will be the first to include big air snowboarding. As an event. A new york man is getting more desperate as valentines day approaches. Its not he needs a date. He needs to find his wifes clothes. Take a look at the sign. N. Hes trying to find 1,000 worth of his wifes clothing after he accidentally put the dry cleaning in a recycling bag which his s n then tossed out with the trash. The sign says, please contact dead husband walking. Hes right about that. I was going to say what would ali do . I would just write the check. Youre a smart man. Thank you, amy. Rob, we brought you in from the cold. That cold is stretching all the way to florida. Check this out. Frost in melbourne on the windshield and rear window. Were not done with the cold. Were going to increase it. Winter storm warnings for parts of north carolina. One to three inches and up to a foot through parts of maine with the next clipper coming through. Your Weekend Getaway brought you to by macys. Brought you by macys. Any light snow showers are quickly moving out of the area. The sky should rapidly clear and the wind will plan ohighs in the upper teens to lower 20s with a slow fall in temperature during the afternoon. Many areas should either touch zero or go a bit below zero tonight with wind chill numbers briefly approaching 20 tomorrow morning. Saturday continues to look great, with a good chance of snow on sunday all across the area. At this time, 244 continueueto look like a very reasonable amount with a light fluffy consistency. Next week, plan on some 30s to start off, with a return to some 40s by next thursday and friday 50 degrees in denver. 88 in phoenix. That s snds toasty. With the valentines day chill, im getting interesting comments on the twitter feed. I saw that, too. Nine months from now, you never know whats going to happen. Interesting. It is cold outside. Coming up here on gma, thank you, rob. Her son a mass murderer. Now, for the first time, the mother of one of the columbine killers opens up to diane sawyer. Part of the shock of this was learning that what i believed, how i lived, how i parented mind. More of dianes g gpping interview with sue klebold coming up. And inexpensive motor oil may not be a bargain. So my kids dont have to forage, got two jobs to pay a mortgage, and ive a ao got a brain. Lifes short, talk is cheap. Ill be working while you sleep. Still dont think ive got a bra . You think a resumes enough . Wholl step up when things get tough . Dont you want that kind of brain . A degree is a degree. Youre gonna want someone like me. But only if you have a brain. No one id rather have dinner and a movie with. No one id rather lean on. Being in love is an amazin