Breaking news tonight. The new information just in on that deadly explosion at the US border with Canada at a bridge checkpoint, raising security fears just as tens of millions are traveling for the Thanksgiving holiday. The heart stopping video a car speeding towards the bridge checkpoint at Niagara Falls going airborne, then exploding in a fireball. The checkpoint in flames. Two people in the car killed. The FBI investigating wasn't intentional. The bridges into western New York from Canada shut down at the nation's airports. The TSA already on high alert. And what New York's governor just revealed, it comes on one of the busiest travel days of the year. Bumper to bumper trap, record breaking air travel in Houston, the accident on the tarmac, plus the impact on flights after that massive storm. Also tonight, a major new development in that hostage deal reached between Israel and Hamas. For families, the agonizing wait. When will the four day pause in fighting begin? Which of the hostages will be freed? And will any Americans be among them? Back at home, new details in that Walmart shooting in Ohio. Was it racially motivated? What the FBI is saying tonight. And from their vineyards to your Thanksgiving table, how these Winemasters are bottling the American dream.

This is NBC Nightly News with Lester Holt. And good evening. I'm tom yamas in for Lester. We begin tonight with the major scare at the northern border at the Rainbow Bridge connecting the US. And Canada. At Niagara Falls, where today a speeding car hit a median, went airborne, then crashed into a checkpoint building, catching fire, exploding, and leaving two people in that car dead. Fearing a possible terrorist attack, authorities closed the Rainbow Bridge and three other border crossings and imposed heightened security on both sides of the border. Officials searched that car and say there were no immediate signs of an explosive device. New York's governor saying there is no indication of a terror attack. But with tensions high in the Middle East and so many Americans traveling for Thanksgiving, the crash near one of America's top tourist attractions comes at a time when the country and the world are on edge. Emily Aketta begins our coverage tonight.

Tonight, the FBI is investigating a fiery crash at the US canada border.

The car just exploded.

Officials in both countries now on high alert.

Mr. Speaker, this is obviously a very serious situation in Niagara Falls.

Moments before, you can see a white sedan hitting a median and going airborne. Witnesses watched the incident in horror.

There was a car in front of him. He swerved out, went in front of the car, hit the fence, went flying up into the air.

Law enforcement sources tell NBC News the car was going at a very high rate of speed in western New York when it crashed into a checkpoint structure at Rainbow Bridge, caught fire and exploded. Both people in the car died, and a Customs and Border Protection officers sustained minor injuries. At this time, there is no indication of a terrorist attack as new details emerge. Three border crossings closed earlier today are now reopened. And the Buffalo airport briefly blocking international flights on one of the busiest travel days of the year. New York has already been in a heightened threat environment since the attack on Israel last month. Now, as several million people prepare to line New York City streets for the Macy's Thanksgiving day parade, authorities say to expect an increased security presence.

We don't see any nexus between the.

Incident there and here in New York City.

We're going to continue to be out.

In full force as police work around the clock to assure a safe holiday.

And Emily Aketta joins us now live from New York as preparations are underway for the Macy's Thanksgiving day parade. Emily, is there concern about mass gatherings tomorrow?

Tom, while today's crash rattled some visitors and caused a cascade of security concerns, tonight officials say people should enjoy the Thanksgiving fun. This is an event that local and federal law enforcement have been preparing for all year, Tom, and we see that.

Already happening there behind you. All right, Emily, thank you for that. I'm joined now on set by NBC's chief justice contributor Jonathan Dean. So, Jonathan, I know you have some new reporting about that fiery crash at the border. Yeah, we've learned about the driver. Investigators tell us they believe the driver was a Buffalo area businessman. They believe a relative may have been in the car with him, but the crash seemed so horrific, forensic work continues. Next of kin's still to be notified. They do not know why he was driving at a high rate of speed. Approaching that checkpoint, officials tell us the couple may have stopped at a casino shortly before the crash. They're looking into whether they had exchanged currency for a planned trip to Toronto to see a rock concert. Authorities stepped up security earlier today as a precautionary measure, as the FBI and other agencies worked to determine what happened. At this hour, Tom, accident or reckless driving? The leading theory all right, Jonathan, we thank you for that. The incident at the border, of course, comes as 49 million Americans are hitting the road for Thanksgiving. And the nation's airlines report record passenger levels this week.

Tom Costello is watching it all for us tonight. From the San Mateo Bridge in the west to I 95 in the east, a bumper to bumper day interloop slows on your approach to Tyson's, headed toward McLean and across the GW Parkway with drivers paying $0.35 less per gallon than last year.

Been very busy, and I'm trying to get back to the family.

Meanwhile, it's been shoulder to shoulder in the nation's airports.

Pack your patience. That's all you can do.

Pack your patients long lines, snaking through checkpoints, though the TSA managed to keep most under 30 minutes.

It makes me regret not getting TSA PreCheck.

The FAA now says 2.9 million people are flying today, more than predicted on a mostly blue sky day, though many east coast airports were still delayed after heavy rain and wind caused 500 delays and 72 cancelations Tuesday. Still looking at a clean ois, going.

Straight to the terminal timeline today.

Heavy turbulence forced the FAA command center to temporarily close. Some military airspace opened up for Thanksgiving at Houston Hobby Airport. Two private planes collided on the runway. No injuries. But for the airlines, this is the big test. The clock is ticking. On a domestic flight, they've got about 45 minutes to get the plane in. Bags off passengers on and out again. On an international flight, about 90 minutes. American chief operating officer David Seymour and we're going to carry over half a million customers every day. Every day, every day, every day. Yeah, it's a busy, busy period for us. A record setting week with a record breaking crescendo on Sunday, as nearly 3 million passengers all try to fly home at once. All right, tom joins us now live. Tom, following that incident on the Canadian border, any change to airport security around the country? TSA says no, it was already in a forward leaning posture. More officers in airports, more dogs because of the situation in the Middle East. By the way, we just checked 3000 right now, 3000 delays nationwide, 62 cancelations following the weather we had moved through last night and this morning.

Tom. All right. Tom Costello with that update for us. Tom, thank you for that. Now to the Middle East. And late word tonight about that deal to release hostages held by Hamas in Gaza. Israel's national security director now says that won't start to happen until Friday. Keir Simmons is in Israel with the latest tonight.

A delay to the long negotiated break in Gaza's bloodshed. The hostage release, including three Americans and potentially many children, will not happen before Friday. Three year old Abigail Moore Idan may be among them. Her parents were killed.

Our emotions are just going a little more crazy because it does feel like we're closer.

The delay despite the head of Mossad in Qatar tonight to agree final details of 50 hostages to be freed over four days. The aim to release 100 hostages, officials say, and 300 Palestinian prisoners, teenagers and women, some jailed for minor offenses, others for attempted murder. A day of frantic phone calls for families like the mother of Miashem forced to appear in a hostage video, hoping their wait will soon be over.

It's like a Russian wallet. We are waiting to see who will come back home.

Prime minister Netanyahu had hailed the deal, saying it included visits by the Red Cross to the other abductees, though Israel's prime minister vowing a short pause would not end the war. While Hamas today releasing another video of fierce fighting. Truckloads of aid are planned, but today there was no end to the civilian suffering. They are massacring us before the truce. This man says in tears. Jamal Alan told us his children and grandchildren might not survive. Today he learnt 60 members of his family are now dead. Friday's pause too late for them. Families here and in the US. Had been preparing for the first group of hostages to be released tomorrow. Now they face a further agonizing wait, Tom.

And that wait is so difficult. All right, Keir, thank you for that. Also tonight, the unusual meeting at the Vatican. Pope Francis with families of the hostages in Gaza and with Palestinian families. Anne Thompson is in Rome for us tonight.

At his private residence, Pope Francis met separately with families of Israeli hostages and Palestinians with relatives in Gaza. American Rachel Goldberg's 23 year old Son Hirsch was captured October 7. The number of days he's been gone taped to her chest. I actually said to him, my heart was taken 47 days ago, and I will wear the number on my heart until my heart comes back. She brought a picture of Hirsch and showed the Pope a video of his capture. His lower left arm blown off by a grenade. How did the Pope react to that? He put his hand on his heart and he spoke in Italian, saying, his heart is with me. Rachel and her husband John. Poland say today's hostage agreement gives them hope even if their son isn't freed, because the Red Cross will finally be allowed to see him.

We have a team of Orthopedic specialists preparing detailed notes of exactly what medications Hirsch should be on and what treatment he should be getting.

The Palestinians say the Pope listened to them about their plight.

He can ask for an immediate ceasefire, but this is not what the only thing that we asked for. We asked him to use his power for more just and long lasting peace.

U. S. Ambassador to the Vatican, Joe Donnelly helped orchestrate today's meeting.

The Pope's voice may be unparalleled in the whole world as to influence that. When he speaks, the whole world, hundreds of countries hear tonight.

Both sides hope the world listens to Francis pleas for peace.

Tom, Anne Thompson from the Vatican tonight. Anne, thank you. In 60 seconds, how new weight loss drugs being used by millions are altering their appetites for Thanksgiving meals and more. The food industry is paying attention right after this. Back now with new details in that Ohio Walmart shooting that left four people injured near Dayton. The FBI says the 20 year old gunman who took his own life may have been racially motivated after examining the writings in his journal. Investigators also say he used a rifle that was purchased two days before Monday's shooting. A stunning reversal tonight in the world of artificial intelligence. Sam Altman, the ousted chief executive of OpenAI, the maker of Chat GPT, has been reinstated to that job. The move comes after hundreds of OpenAI employees threatened to leave the company several board members who opposed altman have also been replaced. And as we gather tonight with friends and family getting ready for the thanksgiving holiday, some are changing the way many people think about their thanksgiving feast. The growing popularity of weight loss drugs. Stephanie gosk on a holiday meal. Game changer.

Step aside. Stuffing in pumpkin pie. For many Americans, the focus this Thanksgiving may be less on the food. The use of revolutionary weight loss and diabetes medications is skyrocketing.

For some people, this holiday is about piling up a lot of food on your plate. Is that something that you would do anymore? No, absolutely not.

Jackie Barrow lost 75 pounds in the last year taking the diabetes drug Monjaro.

You're just not eating the same amounts that you used to. It all looks so good, but you just don't have anywhere to put it in the end of the day. How can you resist that pumpkin pie, Jackie? You can't resist. I don't, but I only eat just a little bit.

The conservative estimate is that at least 3 million people are taking diabetes drugs ozampic and manjaro or the obesity drug wagovi.

You think people are going to buy less turkeys? I doubt that's going to happen this Thanksgiving.

But while the bottom line for food companies hasn't changed, the industry is definitely paying attention. In October, Walmart's CEO told Bloomberg that shoppers who were picking up prescriptions to weight loss medications were buying less food.

How do you think food companies will start adapting? The easy options are things like portion control. If people are saying I get full faster, then maybe I want to pivot to something that's smaller portion sizes, which.

Is what grandmother Jackie barrow says she will prefer tomorrow while she enjoys some of her newfound energy.

I'll be running around with the kids. I am thankful I am going to be able to do this and enjoy it more, this time with a little.

Less food and lots more family. Stephanie Gosk, NBC News.

Up next, the shock and outrage in Mississippi over the treatment of another homicide victim. How his family finally learned of his faith. Welcome back. We heard a lot from you about our report last month on a man killed in Mississippi by a police officer, then buried without his family ever being notified. Now we learned a similar situation happened to another man.

Here's blaine Alexander for Mercedes on Achukwu. Her big brother, Mario Moore was one of a kind.

He was full of wisdom and charm, and he just had a personality that you did not forget easily.

His life wasn't easy. He'd spent years fighting a drug habit and could disappear for months at a time. But he would always come home. Until last month when their sister Marquita Moore saw an article from NBC affiliate WLBT about homicides there in Jackson, Mississippi, that had gone unreported. Mario's name was second on the list.

I just broke down. I felt just weak and I couldn't do anything else.

According to the coroner's report, moore was killed by blunt force trauma to the head. His body was found on the street wrapped in a tarp, eight months before his family ever knew. Then the second shock. Mario had already been buried in a pauper's grave behind the county jail.

We do not have a grave number. We don't have anything other than basically the corner saying I buried his body in an undisclosed location.

For his mother, Mary Moore Glenn. The grief is unspeakable.

They put him in a bag and they just dump them in a grave like they're a dog or something. Who gives you the right to do that?

He was buried on July 14, the very same day and location as Dexter Wade. His case sparked national outrage after NBC News first reported he was hit and killed by an off duty Jackson police officer, then buried before his family was ever notified. His mother betterstein. Wade had spent more than five months searching for her son.

Help me understand what that time was like for you.

That time was horrible. You would lay in your bed, you would think he might have been out there suffering.

After NBC's report, Wade's body was exhumed, and just this week, his family held the funeral he was long denied at the time, jackson's mayor called it a failure in communication. The Jackson Police Department has not responded to our requests for comment on either case. A police commander told Moore's family an officer left a business card at their mother's home, which they say they never saw.

If my son had committed a crime out there, I said, you all will be coming knocking at my door. And if you didn't get anybody, you would have come back again, again.

Mario's family held a memorial service for him, but it has not stopped the questions. His homicide is still unsolved. Blaine Alexander, NBC News, NX.

The secret about some of the world's best wines. The growing trend that's all American via Mexico. Stay with us. Finally, it's fair to say that Americans will drink a good deal of wine tomorrow with their Thanksgiving feasts. But if we were to ask who makes the world's greatest wine tonight, we have an answer that may surprise you. At Schaefer Vineyards, Elias Fernandez walks row after row, checking the vines, the grapes, and feeling the sun.

The sun reminds me a lot as a kid growing up because I did a lot of work out in the fields.

A pioneer in the Napa Valley, elias has gone from migrant worker to master winemaker. Been doing this for 40 years.

Wow. This will be my 40th harvest.

Along the way studying viticulture in college and creating this 2008 vintage, which won wine spectators coveted wine of the year. Do you think you're a better winemaker because you've lived on those fields?

Yes, I definitely do, because I can connect with the people in the fields very easily. So to me, it gives me a little bit of edge, for sure.

That edge shared by a growing group of Hispanics now shaking up the billion dollar wine industry. Are Mexican Americans making some of the best wine on this planet? For sure. And they're doing it right here in Napa Valley and other parts of California. Senior editor james moles worth tastes, rates and rights for wine spectator he's noticing more and more Hispanics making their mark. I think what you have there is probably a little more soul, which is hard to quantify, of course, but again, it's that if your family name is on this bottle, you're taking it very seriously. For this family, oscar, his wife Lola and their nephew, there was just one name for their wine. My first thought was, yama, we have to honor our family name here in the Napa Valley. A great name, but no relation to this reporter.

It's really hard. And that's been our biggest challenge, is we are this small brand competing with a lot of big guys out there.

They're betting wine drinkers appreciate not only their big bold cabernet, but also from planting to blending to bottling, one family did it all. And I think that it's really time to highlight those individuals that farm these grapes. And I think it's kind of a responsibility of ours to bring full circle winemaking in the Napa Valley. For the Mexican American, bitterness. From the fields to the cellars to your dinner table, the American dream in a glass. That's nightly news for this Wednesday. A reminder you can watch the Macy's Thanksgiving day parade right here on NBC starting at 08:30 a.m. Eastern. And you can see the balloons, they've been getting filled up and are ready to go today. Thank you so much for watching. I'm Tom yamas. For all of us here at NBC News, have a great and safe Thanksgiving. Thanks for watching. Stay updated about breaking news and top stories on the NBC News app or follow us on social media.