Down bricks on one man. Tonight, how he got out alive. Good evening. Great to have you with us on this wednesday. Im tom llamas, in for david tonight. Lets get right to that rare thanksgiving message from the president , going before the cameras to calm a nervous nation as nearly 47 million americans head home for the holidays, less than two weeks after those deadly attacks in paris. The president saying, its understandable to wonder if what happened in paris could happen here. But assuring them, there is no specific or credible intelligence indicating a plot on our homeland, and they are working around the clock to keep the nation safe this holiday. Tonight, images of a nation on alert. Bombsniffing dogs in atlanta. Armed guards at Union Station in washington. At lax in california. And right here in new york, at laguardia airport. We start tonight with abcs david kerley. Reporter with tens of millions americans on the move tonight, the president tried to offer some reassurance. We know of no specific and credible intelligence indicating a plot on the homeland. Reporter but there are more police in airports, train stations and what are called soft targets, shopping malls and other public places. Homeland auhtorities call it a reinforcement of existing security. I want the American People to know is that we are taking every possible step to keep our homeland safe. Reporter not all travelers were reassured. Him saying that doesnt really make me feel more at ease. Reporter a Worldwide Travel alert remains in effect tonight for those heading overseas as millions take to the air. Heightened concerns about security. Are you worried . No, its not something i like to think about, but i trust that theyre doing a good job. Reporter across the country, security lines long, with tsa expected to handle a 40 increase in fliers. If youre scared by it and you let it run your life, then youll all be in a house somewhere just hiding. Reporter in new york, balloons are being filled for the thanksgiving parade with Police Planning additional presence. After briefing the president , the secretary of Homeland Security sent his own message to americans to travel. With raincoat and briefcase in hand, he boarded an amtrak train for his trip home for the holiday. The president did say if there is a specific threat, it will be shared with the american public. With that, the president wished the country a happy thanksgiving. Tom . Okay, david, thank you. And those nearly 47 Million People traveling for thanksgiving also facing another challenge tonight. The weather. Parts of 19 states in the path of a thanksgiving storm. Take a look. The map says it all. The west, slammed with snow, high winds, ice. The storm marching east. The vast majority of those americans driving this thanksgiving, and the driving is treacherous. Slowmoving traffic, whiteout conditions in parts of california. Abcs Clayton Sandell with the new images, as the thanksgiving storm hits. Reporter tonight, the Weather Threat is not taking a holiday. Snowing on busy california highways, dust storms blinding drivers in salt lake city. Thanksgiving storms are bringing big helpings of ice and water. A winter mess of snow and sleet from the great lakes to the plains. California and oregon have more than a foot of snow in some places, along with crashes and spinouts. It is so dangerous out here. You really want to get your chains on so you can make the safest drive up there. Reporter in washington state, giant waves. Ones knocking out power to 50,000. This falling tree nearly killed heather adams. I could see the tree coming, two seconds later, i might not be here. Reporter in colorado, the chowdhury family is leaving early. We just want to be not have to be on the roads if we dont have to. Reporter to beat the storm on their 12hour drive from denver to dallas. And tom, the big concern now is freezing drizzle that forecas r forecasters say could coat the highways in a dangerous layer of black ice from here in colorado, all the way to iowa. Tom . That black ice so dangerous. Okay, clayton, thank you. So, lets track that thanksgiving storm. Abcs ginger zee is here with more. What can you tell us . Lets start at the map. You have to see the winter storm warnings, advisories, watches. And an ice storm warning in the texas panhandle. Thats for up to a half inch of ice. That adds up on power lines, not just roadways. Timing it out for you. Denver, tomorrow, thanksgiving happens. Eating dinner at 6 00, thats when you get the three to six inches there. Look at the icy mess, from central iowa back into the texas panhandle. It gets very heavy into early friday morning. I think those folks that are traveling i35 could run into flash flooding. Ill leave you the look at how much ice and snow accumulating. Okay, ginger, thank you so much. We want to turn now to chicago, a city shaken after that explosive new dash cam video. 17yearold Laquan Mcdonald, an africanamerican, walking down the middle of the road. You see him there. He was armed with a knife. Police moving in, weapons drawn, one officer unloading 16 rounds in 15 seconds. Tonight, that officer, you see him there, was still in uniform, despite at least 20 previous complaints. Now charged with first degree murder. Tensions running high in chicago overnight. Protesters staring down police. At least five arrests. And look, images coming in tonight. The city of chicago bracing once again. You can see protesters there in the street. Abcs alex perez is there. Reporter tonight, those new details on Chicago Police officer jason van dykes past. Accordng to civilian Watchdog Group invisible institute, at least 20 citizen complaints filed against van dyke since he joined the force in 2001, including allegations of using Excessive Force and racial slurs. But so far, van dyke has not been disciplined. And, we are also learning more about what officials claimed happened the night of the shooting back in october of last year, when they were responding to a call of a man with a knife breaking into cars. He wasnt dropping the knife and he was coming at the officer. Reporter but investigators now say that dash cam video shows Laquan Mcdonald never threatened van dyke, and in fact, was walking away when van dyke shot him 16 times in 15 seconds. The video sending shockwaves across chicago. Protesters taking to the streets. States attorney Anita Alvarez facing criticism for investigating the case nearly a year before charging van dyke with first degree murder and responding to allegations officers deleted Surveillance Video from a nearby burger king the night of the incident. Doesnt appear theyve been tampered with. And did not reveal, you know, any of that kind of evidence, however, the investigation will always continue. Reporter a district manager for the chain telling abc news the investigators did tamper with the video files. Van dykes defense argues he feared for his life when he opened fire. This is not a murder case, despite what you heard in the courtroom. Reporter legal experts say a first degree murder charge for a Police Officer is rare. Why is it so unusual . Because its a hard case to prove and particularly against a cop, to be convicted of first degree murder, it has to be shown that you intended to do serious bodily harm or death and that you had no justification for it. Reporter and tom, tonight, another round of protests here in chicago. This group, making their way through downtown. All of these protests, so far, peaceful. Tom . And thats what the Mcdonald Family has called for. Alex, thank you. A Major Development tonight on the paris terror attacks. Belgian officials telling abc news this suspect now facing an International Arrest warrant, traveled to syria, then returned to belgium. Mohammed abrini spotted two days before the paris attacks at this gas station. Authorities say the other man in the car, the eighth terrorist, also on the run. Authorities warn abrini is armed and dangerous. And Major Developments to tell you about now in that deadly shootdown over syria. The Russian Military plane in flames, shot out of the sky by turkish fighter jets. Two russian pilots parachuting to earth. You see them there, while being shot at. One of them killed, the other rescues after a daring 12hour mission. Tonight, that russian pilot speaking out, refuting claims they entered turkish air space and were warned ten times in five minutes. Now turkey releasing that radio transmission they say proves the russians were warned. Abcs Jonathan Karl has more. Reporter tonight, we are hearing for the first time from one of the russian pilots shot down by turkey, before parachuting under fire into rebel territory just over the border with syria. After a 12hour mission, Russian Helicopters scouring the countryside, the pilot was found and brought to a Russian Air Base in syria. There, with his back to the cameras to protect his identity, he spoke to reporters, telling them he didnt go into turkish airspace even for a second, and that his fighter jet was shot down without any warning. Turkey insists that for 17 seconds, the plane did cross over this narrow sliver of turkish territory, and it released audio of its warnings to the russian pilots before the shootdown. Turkey claims it gave ten warnings in five minutes before firing on the russian plane. And today, turkey claimed that was actually the Second Russian jet that crossed into turkish a airspace yesterday. With anger growing in moscow, protesters hurling eggs and rocks at the turkish embassy, russias foreign minister said the downing of the jet was a planned provocation. Russia is sending more military might to the region, including a warship and an advanced air defense system. And russia has stepped up its bombing of rebelheld territory in syria near the turkish border. As high as tensions are right now, leaders in both countries insist this will be resolved peacefully, as the Russian Foreign minister put it today, russia has no intention of going to war with turkey. Tom . Jonathan karl for us tonight. Jonathan, thank you. Now, to that bombshell from the pentagon. Several u. S. Service members suspended after an internal military investigation found that a, quote, avoidable human error caused that deadly air strike on a hospital in kunduz, afghanistan, killing 30 people, patients and members of doctors without borders. A perfect storm of mistakes. The real target . A building a short distance away. Abcs chief Global Affairs correspondent martha raddatz. Reporter the 3,000page report found a cascade of errors, technical, mechanical, procedural and human. The ground controller and crew of the ac130 that destroyed a hospital and 0 deliberated 30 innocent lives. This was a tragic, but avoidable accident, caused primarily by human error. Reporter the target was supposed to be a talibanoccupied compound. Because the crew was too far away, the targeting gear was not working properly, so, they used visual descriptions of the compound, and targeted the closest large building to the which turned out to be the hospital. The normal backups, like realtime video fields streamed back to headquarters, were not working, either. But the ac130 crew went ahead and relentlessly blasted the building for close to 30 minutes. Those individuals most closely associated with the incident have been suspended. Reporter disciplinary action is also possible. Doctors without borders made desperate attempts to get u. S. Come mad in kabul to call off the strikes, but it was too late. Doctors without borders said today that the frightening errors outlined in the report illustrate gross negligence on the part of u. S. Forces and a violation of the rules of war and the group is reiterating its call for an independent investigation. Tom . Martha, thank you. A stunning revelation tonight about late football great and abc broadcaster Frank Gifford. His Family Learning after his death, he suffered from the same severe brain trauma found in dozens of former nfl players. Gifford, captured in this iconic image, motionless on the field after a brutal hit. Abcs ryan smith with the message from his family tonight. Reporter he was a gridiron hall of famer. Sends Frank Gifford flying around. Reporter and icon in the broadcast booth. Hello, again, everyone. Reporter announcing monday night football for 27 years. Married nearly 29 years to his wife, kathie lee. But tonight, his family revealed that the nfl star suffered from chronic traumatic encephelophty, cte, caused by repeated hard hits to the head. Cte, detectable only after death. A team of pathologists just now diagnosing gifford after he died of Natural Causes at the age of 84. Gifford, no stranger to big hits, suffering one of the eras most famous head injuries in 1960. Knocked unconscious in a game, carried out on a stretcher. Cte been discovered numerous players like hall of famer junior seau, who took his own life. According to giffords family, he was dedicated to understanding the connection between repetitive head trauma and its associated con anyive and behavioral symptoms, which he experienced first hand. But they hope their revelation will inspire others suffering from the disease. And giffords family hoping to turn his diagnose sis into a positive, hoping to be part of the solution to a, quote, urgent problem, concerning anyone in football at any level, tom. One of the biggest names associated with this condition. Ryan, thank you so much. Still much more ahead on world news tonight this wednesday night. Bracing for black friday. The countdown is on. Some major stores ready to open in less than 24 hours. How to know if you are really getting the best deal tonight. The Wild Police Chase across two states and into oncoming traffic. Well show you how this one ended. And take a look at this. A smokestack demolition gone completely wrong. How the man trapped underneath was able to walk away. Stay with us. Which means you can watch in the house, in a treehouse, or even in miss pepperpies house. Pause in your pjs and hit play during a pb j. Nice and enjoy some cartoons instead of listening to dads car tunes. dad meet you all the way get the best of both worlds. Directv at home and 2 wireless lines. From directv and at t. Take the zantac it challenge pill works fast . Zantac works in as little as 30 minutes. Nexium can take 24 hours. When heartburn strikes, take zantac for faster relief than nexium or your money back. Take the zantac it challenge. Back now with the black friday countdown. Some of the biggest bargains less than 24 hours away. So many offers, everywhere you look. Abcs chief Business CorrespondentRebecca Jarvis spokes us how to find the very best deals. Reporter so, how do you know when a deal is really a deal . Prices online are changing constantly. Take this hello barbie doll. Originally listed on target. Com for 74, then, 69, then 59 in just a few days. We went to work on oyoland as family wish list. Its all about finding the best websites. You can comparison shop with invisible hand. They run in the background while youre shopping online and if what youre about to buy is cheaper at another retailer, they alert you before you purchase. This laptop we found first for 330. But invisible hand found it for 279. The savings dont have to stop once youve made your purchase. Websites like slice and paribus work to get you money back on stuff youve already bought. Just buy you what want, well take care of everything else. Reporter so, if the price drops, you get me the rebound . Thats right. Simple. Reporter you give paribus your email, they scan your recei receipts, and they file a price match claim and automatically refund your account. They take 25 of whatever savings they find you. Tom, most retailers open their doors tomorrow night, but the trend is clearly towards online. The National Retail federation estimates we will spend 105 billion online on holiday sales this year. Tom . Well all be shopping. Rebecca, thank you so much. When we come back, the close call. 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