A 22 year veteran principal killed and children injured. A prosecutored chilling warning, calling one suspect hannibel lecter. And we remember an american actor tonight and a face you couldnt forget. Good evening. As we come on the air tonight, fast moving developments in the race for 2016, six days until iowa now. The national frontrunners on both sides trying to hold on to the leads. Lets get to the news poll. Donald trump in the lead. And senator ted cruz today on the trail in iowa with a warning shot, telling voters if trump wins iowa and hn next, this could be over. Iowa to fight back. Donald trump asking supporters today should he sho up at the debate . Tom llamas on the campaign trail leading us off from iowa. Reporter tonight, senator ted cruz with a warning to supporters. A prediction about donald trump. If donald wins iowa. He right now has a substantial lead in New Hampshire. If he went on to win New Hampshire as well, there is a good chance he could be unstoppable and be the nominee. Reporter cruz and the super pac unloading ads on the billionaire, using trumps own words. I lived in new york city all my life. My views are different than what if i lived in iowa. What was donald trump think of iowa . How stupid are the people of iowa. Show he lines up we ith evangelicals. But today, a boost, with the endorsement of Jerry Falwell jr. , the president of liberty university. And megyn kelly on fox news, he is still living in this moment. You called women fat slobs and disgusting animals. Your twitter account only rosie odonnell. Reporter trump asking fans if he should boycott the debate since megyn kelly is the moderator. She is biassed against me. Do you think she can be fair at a debate. Reporter a series of republican candidates gunning for third place, some confident. Im very comfortable we are make us their first choice. Reporter Chris Christie asking at a young woman snapping why he is not in new jersey. I have friends and family sending me videos, picture, all over the state. All over the state . All over the state . Really . Theres been one county that flooded in the state. I dont know where, all over the state. We have 21 counties, where that happened. Second, i dont know what you expect me to do. You want me to go down there with a mop . Reporter christy saying he was joking. And donald trump said on fox news he is not sure he will attend the debate on thursday. And they took a shot at his tweeting, saying he is going to have a cabinet of twitter followers. On the democratic side, away remains very close. Health care barely edging out smiling in the town hall but there was a moment about a young vote horse asked her about dishonesty. You will hear her answer. And bernie sand erps asked if he could raise taxes. He said request v yes with an explanation. Its so close, ift could all come down to turnout. Reporter on stage today, Bernie Sanders fired up and confident. We are going to have a of us. Billionaires. Reporter off stage, a realty check. If the voter turnout is not high, we will be struggling. Reporter and Hillary Clinton across the state with a precaucus promise. If you go to the caucus monday night and stand up for me there, i will work my heart out for you as your president. Reporter for both sides, a last minute push to get voters you voted for her in 08 and now you are undecided. Why . Yes. There are so many issues that make me second guess where she stands. Reporter one young voter confronts Hillary Clinton head on. I have heard from quite a few people my age who think you are dishonest. I would like to hear from you why you feel the enthusiasm isnt there. Look, i have been around a long time. People have thrown all kinds of things to me. But if youre new to politics, if its the first time you ever paid attention, you go, oh, my gosh, look at all of this. And you have to say, why are they throwing all of that . I will tell you why. I have been on the front lines of change and progress since i was your age. Reporter and bernie sand erps with his admission about his health care plan. Yeah, we will raise taxes. Yes, we will. Because theres a little bit of disingenuity out there. We may raise taxes but we are also going to eliminate private Health Insurance premiums. Reporter the candidates are in a race to crisscross the state. Hillary clinton will have Campaign Stops in iowa every day through monday. At the end of the week, she brings in the reinforcements, bill and chelsea. Thank you. The major issue in the race for president is what the next president will do about homegrown terror. In wisconsin, a suspect under arrest. They say he was flaning to kill dozens on of americans by lock doors at a temple and opening fire. Pierre thomas . Reporter Authorities Say the suspect wanted to launch a cold blooded massacre and launch an american citizen planned to go inside a masonic tempted and opening fire. Thinking he could carry out the attack with two other radicals. Investigators say he is caught on tape saying when we go into a room, we will be killing everyone. The fbi launched this investigation in september of last year. David . Pierre thomas, thank you. Now to a horror riffic scene in lawrence, indiana. A Deadly School bus crash. The principal was killed. Two children hurt when a school bus jumped the curb when school was letting out. The driver is cooperating with investigators tonight. Meantime, across much of the country, families are still digging out. Some are still waiting to see 59 people have now died from the blizzard. The nasa photos before the storm and then after, the blanket of white. And this street in baltimore, still waiting for help. The track of the other system we are watching. David kerley now from washington. Reporter take a look. A front end loader, in queens, needed to pull a sanitation truck out of the thick snow. Part of the reason this recovery is so slow. Tonight residential streets from newark to baltimore and south remain a problem. For a third day outside of her street has not seen a plow. I cant work because i cant get out. In virginia, one in 10 streets the state is responsible for, still havent been plowed. Our crews are working as hard as they can. Reporter fire crews in baltimore had to work through an unplowed street to get to a rowhouse fire. This is what stranded residents a planned path out of the road. Its not just plowing, but how much . Look at this shot of Yankee Stadium from an nypd police chopper. New york crews could have filled very, very happy. We waited 48 hours for this to get done. Reporter the crews finally getting to that mans home in queens. Here in virginia, they still waiting on this street for a plow. They will and taken care of by tomorrow morning, more three three days an of the storm. David. Thank you. Rob marciano showed us two possible tracks for a storm system. The track we were hoping for is most likely. One track had it coming close to the coast and the other out to sea. That is the most likely course, the models now converging and we appreciate it. The man hunt for three prosecutor described the suspect in the middle. More on the possible head start for the suspects. Reporter tonight, investigators taking to the roof trying to piece together how three alleged violent criminals became escape artists to see when they formed an alliance. They are accuse of violent crime, accused of mutilating a victims genitals. Diabolical, cunning, comparing him to hannibal lecter. When you are accused of torture and genital mutilation, people are terrified you are on the run. Sure, i am hoping its not a violent end. Reporter just a short time ago, the authorities tell us the amount of time they were unaccounted for. They are already making changes. Kayna, thanks. To cleveland this evening, Six Police Officers were fired today and six others suspended for the deadly shooting of two people in 2012. Officers kyling 137 shots after a high speed case involves 62 police cars. A new headline about the zika virus. A new case in arkansas. The person infecthood traveled overseas and k5i78 back infected. Now united airlines, carnival cruises, offers pregnant women credit for places where the zika virus is found. Reporter many pregnant woman are rushing to doctors to get cranial ultra sounds and eye exams if their mothers are infected. We are getting calls every day. Reporter the fear is a link between a virus and birth defects where babies are born with abnormally small heads. Its always linked to paralysis in adekts. Is a travel warning to avoid the areas where its been detected. Le and they are asking women to avoid getting presentation nant until 2018. In brazil, the host country for this summers olympic, they are sending 220,000 troops to battle the mosquito blamed for spreading the virus. 18 cases reported in seven states. This mom to be happy the doctor lindsay, thank you. The russian air power in full force over syria. There has been so much debate in the president ial campaign whether that is a good thing, taking out isis. But they are they helping the syrian president olden to to power . Terry moran with a firsthand look at what the Russian Forces are doing. Reporter inside a Russian Armored personnel carrier, we head towards the front lines to the village of salma, which now lies shattered after a ferocious battle two weeks ago. For three years, rebels against the government of syrian president Bashar Al Assad controlled this strategic village until russian air power arrived. So you came in on the ground and the russians were in the sky . Yes, yes, yes. Reporter and now this is syria . Yes. Salma is ours. Joined the fighting here, their battle. Massive airstrikes and Cruise Missile attacks have pulverized rebels and bolstered the assad regime. We went to the Main Air Base in syria. The jets roaring day and night here. But the u. S. , britain and others say russia is helping the assad regime a lot more than theyre fighting isis and accuse their forces of indiscriminate attacks that have killed hundreds of civilians. Russian general Igor Konashenkov dismissed the charge. [ speaking russian ] what civilian facilities are you talking about, he says. These are powerful groups of terrorists. One thing is clear, the russians are here for the long haul and some syrians are welcoming them. Merci, russia reporter terry moran, abc news, syria. Thank you. Back here at home now and to and a promises sign in the housing market. New numbers. Home prices up 5. 8 in november. The cities where prices are rising fast ers. Portland, oregon, san francisco, denver and dallas there is it more ahead on world news tonight this tuesday. Homes about to fall over a cliff. Parts of the buildings giving way. Police warning families they have to go. Some insists they are staying. Giving us the view. The excellent caught on camera. He does survive. He gets run over by a tractortrailer. How does it happen there is word tonight they are going to turn off Niagara Falls. What is this all about . We get to the bottom of it as we continue. Woman or where youre from. City country were just everyday people fighting high blood sugar. I am everyday people. Farxiga may help along with diet and exercise, nfarxiga helps lower blood sugar in adults with type 2 diabetes. R r one pill a day helps lower your a1c. R r and, although its not a weightloss or bloodpressure drug, r r farxiga may help you lose weight and may even p p lower Blood Pressure when used with certain diabetes medicines. P p do not take if allergic to farxiga or its ingredients. P p symptoms of a serious allergic reaction include rash, swelling, r or difficulty breathing or swallowing. Is; if you keep smoking, your freedom may only go as far as your oxygen tube. announcer you can quit. For free help, call 1800quitnow. I accept im not 22. I accept i do a shorter set these days. P i even accept i have a higher risk of stroke due to afib, a type of irregular heartbeat, tnot caused by a heart valve problem. But i wont play anything less than my best. So if theres Something Better than warfarin, im going for it. Eliquis. Reliquis reduced the risk significantly less major bleeding than warfarin. Eliquis had both. Thats what i wanted to hear. Ndont stop taking eliquis unless your doctor tells you to, p as stopping increases your risk of having a stroke. Neliquis can cause serious and in rare cases fatal bleeding. Dont take eliquis if you have p an artificial heart valve or abnormal bleeding. R while taking eliquis, you may bruise more easily. P. And it may take longer than usual for any bleeding to stop. Nseek immediate medical care for sudden signs of bleeding, like unusual bruising. P eliquis may increase your bleeding risk if you take certain medicines. P tell your doctor about all planned medical or dental procedures. R i accept i dont play. Quite like i used to. But im still bringing my best. And going for eliquis. V reduced risk of stroke v plus less major bleeding. Ask your doctor. If switching. Next tonight here on the edge in california. Families urged to get out before their homes go over the edge. Some insisting on staying. Abcs Neal Karlinsky tonight. Reporter tonight, a drone video catches a huge slab falling away. Police have yellow tagged an entire Apartment Building telling residents to get out when you can. Did you sleep with one eye open . Yeah, alert. Time to go. Reporter take a look at this. This bluff in the stit of pacifica battered by the surf and rain, leaving the homes and businesses in danger of falling. Just imagine if this is your ball canny. The coastline continues to fall away with no end in sight. With little support. Pictures from before show the difference. Despite the threat, some refuse to leave. You have to physically move me out. Reporter people here know the danger is far from over. Neal karlinsky, abc, pacifica, california. When we come back, a recall involves one of the most popular trucks in america. Sbp we remember an american actor tonight. And imagine Niagara Falls without the water. A plan to divert . When we come back. Were just everyday people fighting high blood sugar. I am everyday people. Farxiga may help in that fight every day. Along with diet and exercise, nfarxiga helps lower blood sugar in adults with type 2 diabetes. R r one pill a day helps lower your a1c. R r and, although its not a weightloss or bloodpressure drug, r r farxiga may help you lose weight and may even p p lower Blood Pressure when used do not take if allergic to farxiga or its ingredients. P p symptoms of a serious allergic reaction include rash, swelling, r or difficulty breathing or swallowing. R if you have any of these symptoms stop taking farxiga r r and seek medical help right away. Ndo not take farxiga if you have severe kidney problems, t are on dialysis, or have bladder cancer. P p tell your doctor right away if you have blood p p or red color in your urine or pain while you urinate. P p farxiga can cause serious side effects, including dehydration, r genital yeast infections in women and men, t low blood sugar, kidney problems, and increased bad cholesterol. P p common side effects include urinary tract infections, changes in urination, and runny nose. Farxiga. We are everyday people. R r i am everyday people. Yeah. Yeah. Ask your doctor if farxiga is right for you and visit farxiga. Com to learn how you can get it for free. Every Auto Insurance policy has a number. But not every Insurance Company the life behind it. Those who have served our nation have earned the very best service in return. Usaa. We know what it means to serve. Get an Auto Insurance quote and see why 92 of our members plan to stay for life. Fact. When emergency room doctors choose an otc pain reliever for their patients muscle, back and joint pain. The medicine in advil is their 1 choice. Nothing is stronger on tough relief doesnt get any better than this. Advil. From anywhere. The microsoft cloud allows microsoft cloud changes our world dramatically. It wasnt too long ago it would take two weeks to sequence and analyze a genome. Now, we can do a hundred per day. With the microsoft cloud we dont have to build server rooms. We have instant scale. The microsoft cloud is helping us to rebuild and reinterpret our business. This cloud helps transform business. This is the microsoft cloud. Tonight. Dash cam video. A sheriffs deputy directing traffic. Struck by a tractortrailer. He escaped the trucks wheels. Just incredible. Ford recalls 300,000 pickups cause death. It comes days of a man in south carolinas death was linked to the air bags. And Niagara Falls shut off . That is what officials are proposing, turning off the u. S. Side of the falls, diverting the water to the side in canada to repair two 115yearold bridges. No date has been set. We remember an american actor from the godfather to a tv classic. A face you couldnt forget. Shooting, burning, r pinsandneedles of diabetic nerve pain, these feet were the first in my family to graduate from college, raised active twin girls, and trained as a nurse. But i couldnt bear my diabetic nerve pain any longer. So i talked to my doctor and he prescribed lyrica. Nerve damage from diabetes causes diabetic nerve pain. Lyrica is fda approved to treat this pain. Lyrica may cause serious allergic reactions or suicidal thoughts or actions. Tell your doctor right new or worsening depression, or unusual changes in mood or behavior. Or swelling, trouble breathing, rash, hives, blisters, muscle pain with fever, tired feeling or blurry vision. Common side effects are dizziness, sleepiness, weight gain and swelling of hands, legs, and feet. Dont drink alcohol while taking lyrica. Dont drive or use machinery until you know how lyrica affects you. Those who have had a drug or alcohol problem may be more likely to misuse lyrica. Now i have less diabetic nerve pain. And i love helping little ones get off on the right foot. Ask your doctor about lyrica. Like i do, many Cold Medicines thats why theres coricidin hbp. It relieves cold symptoms without raising Blood Pressure. So look for powerful Cold Medicine with a heart. Coricidin this helps me to manage my chronic pain. But it came with some baggage. Youre not the only one. Opioids block pain signals by attaching to something called mureceptors here but they also attach to mureceptors in the bowel. Opioidinduced constipation. Or oic. I could struggle with oic the whole time i take my opioid . Maybe not. Theres movantik. Movantik can help reduce oic by blocking opioids from binding to mureceptors in the bowel. Do not take movantik if you have a bowel blockage or a history of them. Serious side effects may include a tear in your stomach or intestine. And can also include symptoms of opioid withdrawal. Common side effects include stomach pain, diarrhea, nausea, gas, vomiting, and headache. Tell your doctor about any side effects and about medicines you take as movantik may interact with them causing side effects. So, go on, talk to your doctor about opioidinduced constipation. And ask if oncedaily movantik if you cant afford your medication, 80 of women say a Healthy Lifestyle is a priority. But up to 90 fall short in getting key nutrients from food alone. Lets do more. Add one a day womens 50 complete multivitamin. With vitamin d and calcium to help support bone health. One a day. Finally tonight here, an american actor with a signature face and many lines we are remember. Here is abcs david wright. If anyone wants to arrange a meeting reporter his most famous role was sal tessio, the mobster who ends up betraying i can guarantee security. Reporter abe vigoda wasnt sicilian. He was a russian jew. A theater actor for 30 years. He went on to stardom on abcs barney miller. As the curmudgeonly detective fish. I need time to put my teeth in. Reporter oddly, vigoda spent years fighting an urban legend he had already died. The rumor is that he died. Abe is there in the control room . He is. Reporter thats on David Lettermans show in 1988. Like his character in the godfather. Tell mike it was only business. Reporter he knew the end was coming. Tom, can you get me off the hook . For old time sake . Cant do it. Reporter abe vigoda was 94. Gaifd wright, abc news, new york. I remember growing up watching barney miller. Hope to see you right back here tomorrow night