vehicle ran down members of a marching band. ♪ ♪ >> we're not showing you the moment of impact here. it is unknown right now whether this has been considered an act of terrorism. but the white house and fbi are monitoring the situation, and the incident has drawn swift reactions from lawmakers on capitol hill. now, police say that an officer did fire his weapon at the vehicle in order to try to stop it as it was heading away. but no one was injured by that gunshot. our reporter is on the scene with the latest. >> reporter: the police chief, mayor and fire chief would not answer any questions at the very latest update of the evening. but earlier sunday night, they did confirm a few key points, including the fact that more than 20 people were injured, including children. they would not say how many people exactly had been killed. the police chief said they are still working on informing next of kin, and many people are still being treated in the area hospitals. the police chief did say that initially about a dozen children and dozen adults were taken to about six hospitals in the area, with more people who had been taken to hospitals in private vehicles. they also said that there -- they did not believe there were shots fired from the suspect vehicle. law enforcement on the scene fired at the vehicle in attempts to stop it. so initial reports from witnesses that they heard gunfire may have actually been the police discharging their weapons. another point is that they do have a person of interest in custody, and they have located the suspect vehicle, as well. this was incredibly devastating and shocking for the witnesses and the families there who were trying to have a good time at this christmas parade. i spoke to one woman who lives in a nearby apartment complex. she stepped out on her balcony to see the parade and saw this vehicle just plow through people, running over a marching band. so very devastating night for this community, in the middle of what was supposed to be a happy into tragedy. >> earlier, cnn spoke with a man who witnessed the terrifying scene unfold. he had just finished marching in the parade and was circling back to watch it for himself when he spotted the speeding suv. and he described what happened next to cnn's pamela brown. >> i saw an suv speeding along the parade route, and then all of a sudden heard a loud bang. and then i heard deafening cries, screams from people in attendance, people marching in the parade. folks started running away from the scene, folks left their belongings behind, holding on to their kids, running away from main street where the parade was. when the crowd cleared out, it looked like there were people on the ground who were struck by the vehicle. >> the ones that were on the ground, those that you did see, were they young? could you tell? i know there were a lot of young people in this parade. >> it was hard to tell but it looked like there were small children who were lying on the ground. i just saw bodies lying almost lifeless on the ground. so it was really hard to tell. it was so much happening all at one time. >> now, i want to bring in a local reporter who was sent to the scene shortly after this tragedy occurred. joining me by phone is drake bentley with the milwaukee journal sentinel. you got there soon after this happened. just describe what you saw. >> on my way there from milwaukee, milwaukee is the major city next to waukesha, you could see ambulances flying down the interstate in the opposite direction towards the hospital. when i arrived on the scene, it was pretty quiet. police officers did a pretty good job of breaking up the group of getting people out of the area so they could take a look at the crime scene. so a lot of red lights around, ambulances and fire engines coming from every direction. i arrived at city hall where the mayor arrived. he didn't take comments. and from there, we were shuffled into the fire department, waiting for instructions from the police department. >> do people that you spoke to, do they have any sense of why this happened? there must be so much confusion about the why along with the obvious grief, i imagine. >> no, we don't have any indication of a motive. you know, this area of the country, this area of the state has really been amplified lately. we've been on the news for some bad things. some good things and some bad things. and, you know, we just had the trial of kyle rittenhouse that just wrapped up that made it in the national news, and now this following it. emotions are at an all-time high and people don't know where to turn. >> you, eah, absolutely. that's a very good point. it's remarkable to see how quickly people reacted to help the injured. tell us about waukesha, what kind of place is it? >> waukesha is a -- it's a suburb -- it is in its own county, but it's a suburb of milwaukee, pretty much. it's a -- what we like to say in the states, a ruby red district. it's very much conservative. very much republican. very much donald trump. and it's a big difference from the city life in milwaukee. but the people are lovely. i mean, when you go into a waukesha business or a waukesha home, you're treated like you're a member of the family. you know, the people that attended this parade were proudly locals that were very loyal to the city of waukesha. and, you know, it turned into a very tragic event. >> what do we know about where the investigation stands at the moment? i don't think there's going to be any more updates this ooefg. -- evening. >> it doesn't look like they're going to share any more information this evening. we don't know any information about the fatalities. we know that 11 adults and 12 children were taken to hospitals. the local children's hospital says they received 15 patients and nobody died. so that's good news to hear. but we don't have any details on the fatalities yet. >> all right. drake bentley with the journal sen sentinel, appreciate you taking the time. thanks so much. quick break. when we come back, 56 days of concern over safety and whereabouts of the tennis star peng shuai, the international olympic committee said she's safe and well in china, but critics are still skeptical. we'll be right back. imagine having someone else do your books for you. as your quickbooks live bookkeeper, i'll categorize expenses, reconcile accounts, and close your books. cool. - yep. know where your business stands. intuit quickbooks live bookkeeping. it's the season of smiling. and at aspen dental, we make it easy to gift yourself the smile you deserve. new patients, start today with a full exam and x-rays, with no obligation. if you don't have insurance, it's free. plus everyone saves 20% on their treatment plan with flexible payment solutions for every budget. we're here making smiles shine bright so you can start the new year feelin' alright. call 1-800-aspendental or book today at aspendental.com because you're forever connected by love... two touching center diamonds, representing the connection you share. forever connected. the perfect gift to give this holiday. exclusively at kay. ok, let's talk about those changes to your financial plan. bill, mary? hey... it's our former broker carl. carl, say hi to nina, our schwab financial consultant. hm... i know how difficult these calls can be. not with schwab. nina made it easier to set up our financial plan. we can check in on it anytime. it changes when our goals change. planning can't be that easy. actually, it can be, carl. look forward to planning with schwab. schwab! ♪ tums vs. mozzarella stick when heartburn hits, fight back fast with tums chewy bites. fast heartburn relief in every bite. crunchy outside, chewy inside. ♪ tums, tums, tums, tums ♪ tums chewy bites chinese tennis star peng shuai insists she's safe and well at her home in beijing. the ioc says its president held a video call sunday with peng, who hasn't been seen publicly since accusing a former top chinese official of sexual assault earlier this month. many in the tennis community expressed concern about her well-being. the ioc did not give cnn access to the video call. for more on all of this, let's bring in cnn's reporter in hong kong. you've been following this all along. it seems significant that this video chat was with the ioc and not someone close to peng shuai. it seems to close the chinese leadership is worried about olympic blowback. >> it is very significant, because we know that beijing and the ioc have a very close relationship and concern about peng shuai has been casting a shadow over the upcoming beijing winter olympic games, now just 2 1/2 months away. you have talks about governments about weighing a possible diplomatic boycott. the olympic host and the ioc needed to address this. the ioc came up with this highly choreographed and stage managed response. according to the ioc, there was a video chat that took place between thomas bach and bach. she says she's safe and well, living at home in beijing, that she wants her privacy to be respected. there were two other individuals part of this video chat, including a chinese sports official. ioc did not give video to cnn. all we have is a statement, and that still photo you saw just then of peng shuai smiling to the camera. look, it was just almost three weeks ago when peng shuai made that explosive accusation, akuakug i -- accusing a former vice premier of china of assaulting her. she's been under blanket censorship since then. there was no discussion about those allegations on state-run media in china. there's been a tremendous international outcry as a result, and the #whereispeng sh shuai. and there was a series of clips and photographs released showing peng shuai out and about and active in china. the women's tennis association t says that is insufficient and issued a new statement from the women's tennis association. they say it was good to see peng shuai in recent videos. but they don't alleviate or address the wta's concern about her well-being, and ability to communicate without censorship or coercion. this does not change our call for a full, fair, and transparent investigation into her allegation of sexual assault, which is the issue that gave rise to our initial concern. and michael, news about the ioc's video call with peng shuai that does not ease concerns. it's raised a new question. it's about about where is peng shuai, but how truly free is peng shuai? >> you're raising a number of good points there. what, if anything, could the chinese people know about this case? has you said, those first videos were posted on twitter, which is banned in china. hash tags have been scrubbed and so on. they clearly want to keep all of this from the chinese public. >> that's right, thanks to something called the great fire w wall in china. even the great firewall in china has cracks. people can use vpns to get information from the outside world. they can use private messages to share that information. a number of people flocked to naomi osaka's account to thank her for supporting peng shuai. not only that, but people of china have tremendous interest in peng shuai. she's a national hero, a sporting icon that brought home two incredible victories from wimbledon and the french open and china is going through its own metoo movement. a number of young people, especially women, have had enough with sexist behavior and abuse of power, and they feel personally invested in the fate of peng shuai. michael? >> christy, thanks so much for that. now to new york, where a small rally was held sunday to show support for the chinese tennis star. some protestors holding signs that read free peng shuai and let her speak. organizers told cnn that she should be given a chance to talk freely about her situation without government intervention, coercion, or censorship. it's being described as an unspeakable tragedy in wisconsin, a driver plowing a vehicle through a christmas parade, leaving many injured and some dead. we'll have the latest details coming up. also, two kidnapped missionaries in haiti have been released. the latest, plus white house reaction, after the break. ♪ it's the black friday sale at kay! get 25 to 50 percent off everything. find gifts they'll love, at savings you'll love. celebrate every kiss, with kay. tums vs. mozzarella stick when heartburn hits, fight back fast with tums chewy bites. fast heartburn relief in every bite. crunchy outside, chewy inside. ♪ tums, tums, tums, tums ♪ tums chewy bites it's time for the ultimate sleep number event on the sleep number 360 smart bed. what if i sleep hot? or cold? no problem, the sleep number 360 smart bed is temperature balancing so you both sleep just right. and it senses your movements and automatically adjusts to keep you both effortlessly comfortable. so, you can really promise better sleep? yes! you'll know exactly how well you slept, night after night. we take care of the science. all you have to do is sleep. don't miss our weekend special. save 50% on the new sleep number 360® limited edition smart bed. plus, 0% interest for 24 months and free premium delivery when you add a base. ends monday. welcome back to our viewers in the united states and all around the world. i'm michael holmes. you're watching cnn newsroom. we want to update the breaking news out of wisconsin. missay there are some fatalities after a vehicle plowed through a crowd. more than 20 people, including children, were injured in waukesha on sunday. the police chief says the suspect's vehicle was recovered, and a person of interest is in custody. he said it's still unknown if it was an act of terrorism. they're still looking into all aspects, obviously. the city has released this map of the parade route where members of the community had gathered to take part. kr cnn's natasha chen spoke earlier to a woman who watched the incident unfold. have a listen. >> you actually live in the apartment complex where the window overlooks the parade and you saw this happen. tell me about that moment you stepped out on your balcony to watch the parade. >> i was watching it for my kids to say i wish you were here. i heard screams and i turned and saw the van plow into the band. it continued down the road to people's park at the end of the block. and then kept going. it didn't stop. he did not stop at all, or she. whoever it was. >> this is obviously really, really horrible to see. what was going through your mind when you heard the screams, you saw the car? what did you think was happening? >> i couldn't imagine my kids being down there. it was not something i wanted to see. and the people that watched the video can't believe it. a little freaked out. >> joining me now from cambridge, massachusetts, is cnn senior national security analyst ju julia kayem. it's more what we don't know than what we do know in this situation. what is your read on what we know so far? >> the police department feels confident say thing is isolated, and that to me is the most important thing at this stage. because we're heading into the holiday season, the big travel days, people are finally back together. this was the first kenosha parade since -- i'm sorry, waukesha parade since covid began. and so people are out and about. so you want to make sure that there's no systemic, pervasive kind of attack or unrest. and i think that's been sort of put to rest. so that is the good news out of this. >> and one odd aspect of this is, of course, that horrific video of the car plowing through people. there's another video of the car driving through not targeting at all. >> that's why i got on early and people get mad at me because i don't speculate, but i said here are -- i help plan major events, so either sporting events or whatever for security reasons. a couple things stood out to me that's why we have to await judgment. one is that the car was damaged before it entered the parade area. so you wonder was something else going on before hand? the second is, of course, that there does appear to be periods where the driver is swerving away from groups. it doesn't mean he missed them all, but he does appear to try to avoid them. we don't know what that means at this stage, but that cuts against the oh, my god, this is terrorism or some racial sponsor whatever it is that we're dealing with in the united states right now. >> yeah. great point. as you negligmentioned, there h been deliberate car attacks around the world. so i suppose law enforcement has to bear that in mind. but jumping to conclusions is dangerous, as well. >> absolutely. i think there's something to learn out of this. there was an incident here in the united states that ended up being an elderly man in new york. and so i think what we have to get trained better at is to have police information come out faster. you were probably watching today, but they kept postponing this press conference. that lets lot of rumors feed. at some stage, they knew they had a person of interest and that it was unlikely to be terrorism. even if they don't know what the reason is, and one of the things that law enforcement needs to be trained for in the era of social media is being more comfortable saying, look, we don't believe it's terrorism. take that off the table and we have the person in custody or we have a person of interest. that took several hours. and in those hours, those communities upset. but also things get activated for better or for worse. and we have to recognize that. >> yeah, we have to say after, you know, incidents of various kinds, we can't let this happen again. but really, it's impossible to fully prevent something like this happening. the so-called low tech and so an. >> right. that's absolutely right. people like me who started in a world of counterterrorism and prevention really for the reasons you say have shifted our thinking about how can we be better prepared at that moment of impact to minimize losses, get communities back up and running, and thinking about what we call right of boom. there is no way you can have societies like ours, people want to get together and go to sorting events and parades, it's a holiday, there's been a pandemic. people want to be together. we want them to be together safely. there's no way that you're going to get the threat down to zero. so we have to anticipate, as you said, sort of a world in which these may be recurring, but their success is measured if less harm is done. and that is unfortunately in an age of all sorts of mayhem, whether natural or man made, that is what we're going to have to think about. so from that perspective, this is an incident that is tragic but could have been so much worse. >> good point. real quick, what is the procedure for law enforcement, their priorities at the moment when something like this happens? >> right now, they have the person in custody. so whether that's the owner of the car or someone who knows that is, that information will likely come out. if it's not the driver of the car, there will be a search for the driver. i think it's noticeable that the fbi has not gotten involved with this case. in most cases that are suspected terrorism, they would have. so that's also good news in the sense that maybe we don't -- it doesn't seem like we have a terror threat right now. and then every mayor and police chief will assess their parade and holiday planning to ensure that there are protocols for a rampaged vehicle, whether it's purposeful or on accident. >> yeah. that's a good point. there will be a lot of revision going on. july et, thank you so much. two of the 17 missionaries kidnapped in haiti last month have been freed. the white house issuing a statement saying they welcome reports of their release. matt rivers has been following this story and has the latest for us. >> reporter: it had been several weeks since we received updates on the status of 17 missionaries who were in haiti when they were kidnapped on october 16th by gang members. they kidnapped these 17 missionaries just outside of port-au-prince while they were on a missionary trip. but the group that they were in working for, christian aid ministry, released a statement on sunday later in the day saying two of the 17 missionaries that had been kidnap have had now been released. they didn't give too much more information. part of the statement they said, the two people that were released are safe, in good spirits and being cared for. we cannot provide or confirm the names of those released, the reasons of their release, where they're from or their current location. so basically, confirming that 2 of the 17 missionaries have been released. a source in haiti did confirm that those two hostages have been released. the white house issued a statement basically saying that they welcomed these reports of the hostages being released. they don't have further comment at this time according to a white house spokesperson. but this is a big development and quite welcome. after so many weeks offing in hearing anything, you can imagine how thrill the loved ones of these people released must feel. the focus remains on the 15 missionaries that remain, basically as hostages in haiti at this time, as they're continuing to be held by that gang. matt rivers, cnn, mexico city. austria has gone back to a nationwide partial lockdown to fight rising cases of covid-19. and starting in february, it will require that its citizens get vaccinated. an estimated 40,000 people gathered in vienna on saturday in the biggest covid related protest to date. elsewhere in europe, protests turned violent. police in brussels using water cannon and tear gas and arrested dozens of people against tough new restrictions. belgium is back to a rate of virus transmission it has not seen since last year. in the netherlands, rioting broke out in the hague and other cities. police arresting 19 people. the scene very different in amsterdam where thousands of protestors attended a largely peaceful march. chile's presidential election moves through a second round. coming up, the two front-runners in polarizing results. we'll be right back. when love finds us, this is how we shine. ( ♪ ) you found the one. now find the ring at zales, the diamond store. chile is headed for a runoff next month in its presidential election, and the top two candidates are polar opposites politically. hard-right former congressman jose antonio kast will face leftist lawmaker and former protest leader gabriel boric in a december 19 runoff. rafael romo has the details. >> reporter: polls have shown it for weeks and now it's confirmed. two candidates, polar opposites in a crowded field of seven, will advance to a runoff in chile's presidential election. jose antonio kast, the candidate for the hard right, came out ahead in sunday's election with about 28% of the vote. but less than 50% needed to avoid a runoff. in his government plan, the 55-year-old attorney speaks out liberty, order, rule of law and a free market economy. he's been compared to leaders like donald trump and brazil's current president. he's proposed building a three-meter ditch at strategic points to stop the flow of immigrants. gabriel boric, who is 35 years old, came in second with about 25% of the vote. he supports abortion rights, and leads a coalition that includes chile's communist party. the elections happened two years after massive protests and riots that left at least 30 dead and hundreds injured. protestors were demanding better government programs an and end to inequality. the convention was called to rewrite the constitution, a process that is ongoing. they will face off again when the second round will be held. the winner will replace the current president, whose four-year term ends in march. raphael romo, cnn, atlanta. at least one person was shot and killed at a polling station during venezuela's election on sunday. the motive unknown at the moment. officials say preliminary results show the socialist party winning the capital district and all but three of 23 states. turnout is less than 42%. this marks the return of opposition politicians who had boycotted election ps since 2018. nearly one month since a military takeover in sudan, the military chief reinstated the prime minister after the two men reached a political agreement. but the deal is met with resistance. >> reporter: a deal signed. sudan's military has reinstated the country's prime minister and says it will release all political detainees. movement to piece together a country torn apart by a coup one month ago. the prime minister appeared at a signing ceremony, with the man who led the coup that removed him from office. flanked by military personnel, he displayed the agreement that put him in charge of a civil group. but the agreement inked here was not enough to dispel another mass protest in khartoum. >> translator: we can hear the sound of tear gas and bullets. so we will continue resisting until we completely exclude the military from the political process. >> reporter: violence protests since the military declared a state of emergency four weeks ago, and dissolved the civilian government. the groups were formed after the former president was ousted in 2019. the transitional government was supposed to lead to elections in 2023. that became a rallying cry for protestors, who have been gathering in the capital for weeks, demanding the military step aside and put the country back on the path of civilian rule. a medical group says dozens of civilians have died in violent crackdowns on the crowd. some protests are now turning against the prime minister, saying he sold them out. he says he did it to stop the bloodshed. >> translator: sudanese blood is precious. let us stop the bloodshed and put the energy into construction and development. >> reporter: the military says the deal will be inclusive, except for his ruling party. >> translator: we are proud today by sign thing political decree, we are able to lay a real foundation for our transitional period like we envisioned and like the sudanese people wanted it. >> reporter: but the civilian coalition that shared power before the coup says it does not recognize the agreement. some people questioning if the deal doesn't satisfy protestors, that it may only be paper thin. for our international viewers, thanks for spending part of your day with me. "world sport" is coming up. for everyone else, i'll be back with more news in just a moment. tums vs. mozzarella stick when heartburn hits, fight back fast with tums chewy bites. fast heartburn relief in every bite. crunchy outside, chewy inside. ♪ tums, tums, tums, tums ♪ tums chewy bites it's the black friday sale at kay! get 25 to 50 percent off everything. find gifts they'll love, at savings you'll love. celebrate every kiss, with kay. retirement income is complicated. as your broker, i've solved it. that's great, carl. but we need something better. that's easily adjustable has no penalties or advisory fee. and we can monitor to see that we're on track. like schwab intelligent income. schwab! introducing schwab intelligent income. a simple, modern way to pay yourself from your portfolio. oh, that's cool... i mean, we don't have that. schwab. a modern approach to wealth management. ♪ my songs know what you did in the dark ♪ ♪ so light 'em up, up, up light 'em up, up, up ♪ ♪ light 'em up, up, up ♪ ♪ i'm on fire ♪ ♪ so light 'em up, up, up light 'em up, up, up ♪ ♪ light 'em up, up, up ♪ ♪ i'm on fire ♪ ♪ oh-oh-oh-oh-oh, oh-oh-oh-oohohh ♪ ♪ in the dark, dark ♪ new cheetos boneless wings. exclusively at applebee's. 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[ chantell ] clearchoice dental implants changed everything. my digestive health is much better now. i feel more energetic. the person that i've always been has shown up to the party again. we have to be able to repair the enamel on a daily basis. with pronamel repair toothpaste, we can help actively repair enamel in its weakened state. it's innovative. my go to toothpaste is going to be pronamel repair. welcome back. our top story this hour, police in wisconsin say there are some fatalities after more than 20 people, including children, were hit by a vehicle that plowed into a crowd atending a christmas parade in the town of waukesha. this is video of the aftermath that shows people being treated at the scene. police say they have a person of interest in custody, and there is no active threat to the community. it's not clear whether the incident was an act of terrorism. it's thought not at the moment. we'll have much more on this story at the top of the hour. covid cases on the rise in the u.s., and experts warn a combination of holiday gatherings and colder weather driving people indoors could lead to a further surge. here's where things stand right now. the u.s. averaging more than 92,000 new cases a day, a significant jump from where we were two weeks ago. experts say it's not too late to blunt the surge, especially with vaccine boosters available for all adults. here's dr. anthony fauci on sunday. >> let's make it clear. when there's lack of clarity, people get confused. if you are 18 or older and you've been vaccinated, fully vaccinated with the moderna or the pfizer, get a booster. just go out and get boostered. >> around 59% of the u.s. population is now fully vaccinated. and more than 35 million americans received a booster shot. not enough according to many experts. mr. fauci did have good news for fully vaccinated americans. he says people should be safe to gather with loved ones as long as everyone has been vaccinated. here's more. >> reporter: over the weekend, we heard from multiple health experts including dr. anthony fauci. he says if you're vaccinated and your family is vaitd, it is okay and safe to gather around the table without a mask. he added if you aren't sure of someone's vaccination status, it makes sense to hold on to that mask. regarding the rise in new cases, dr. fauci said it is to be expected, as we near the winter months and enter the second pandemic holiday season, and the best way to keep those numbers down is to have people who haven't received their vaccine to get it. and if they did, then the big recommendation is to get boosted. the fda and the cdc have approved boosters for all adults who received moderna and pfizer shots six months ago or longer. two months or longer if they received j&j shots. authorities are searching for the man accused of trying to bring a gun through atlanta security and accidently fired it off. police say 42-year-old kenny wells mistakenly fired the weapon when he lunged for it inside his game at a tsa checkpoint. the convicted felon then reportedly fled into the chaos with gun in hand. here's more. >> reporter: the manhunt continues for 42-year-old kenny wells. police say he's the passenger that came in through the tsa checkpoint here at atlanta's airport, and had a firearm. and accidently discharged that firearm. and then he was able to run away. he was able to flee during all the chaos and confusion. so they're still looking for him with multiple arrest warrants out for 42-year-old kenny wells. now, this happened at the busiest airport in our country here during what was a busy weekend as many travelers were trying to get to their families and friends ahead of the u.s. holiday at thanksgiving. this was a time when many people were already in the airport. we saw the domino effect of a ground stop, temporarily stopping planes from taking off or landing. but we do know that there were more security measures this thanksgiving compared to last year, because of more security cameras. a spokesperson says they installed more than 300 new cameras here at the airport, bringing that total up to more than 3,000 and were able to use those to see exact think what happened in this particular incident on saturday afternoon. those cameras are being monitored 24/ 7, but the manhunt still continues for 42-year-old kenny wells. nadia romero, cnn, atlanta. this week, thanksgiving travel in the united states is expected to look like it did prepandemic and millions could face significant storms and some wild temperature swings. what are you seeing? >> so the holiday travel is back. we have rain stretching from texas all the way up into maine. and then a mixed bag up here in quebec. the temperatures are going to plummet across the eastern third of the country. and the winds pick up, too. we could see the temperatures fall as low as 36 degrees up around the great lakes . and then, across the northeast, we're going to see our winds on tuesday pick up to 30 to possibly 40 miles per hour. sustained, about 10 to 15 miles per hour. in terms of the rainfall, not looking at tremendous accumulations across the east coast. we could see roughly one inch or so. and then you'll notice two to four inches right off the great lakes in terms of the snow. this is system number two. so we're dealing with two systems. come thanksgiving, a wet thanksgiving across houston, through st. louis and chicago. that continues to push east. so multiple storm systems impacting us before and after thanksgiving. >> fun. thank you very much. now a look at one of the devastating consequences of extreme weather brought on my climate change . >> we're on a hike in the sierra nevada mountains, but this is a tour of sequoia destruction. >> i'm not happy about 2,000 to 3,000 more dead large sequoias. it's a big number to me. >> that's 3% to 5% of the remaining monarch sequoias in the world according to a preliminary report by the national park service, killed in the kmp complex fire that churned through sequoia and kings canyon national parks and the windy fire further south. that big number is on top of an even larger loss of mature sequoias last year in the castle fire, part of the sequoia complex, that wildfire eviscerating 10% to 14% of the world's giant sequoia population. brigham says this means in just the last two years, up to a fifth of mature sequoias, trees that have stood for at least 1,000 years, if not more, have been lost to wildfire. >> that's not sustainable. that is not getting wildfire and climate change resilient for us. >> reporter: it's a conflux of concerns these scientists never thought they would see. the threat made worse by another year of drought, leaving the sequoias dry and vulnerable. >> that means its water source has been there for over 2,000 years. that that water's not there means that the climate, the world around it, has changed. >> reporter: but lessons learned last year helped save some sequoia this year. >> before the castle fire, we had never seen losses of large trees like we had in that fire. 7,500 to 10,600 large sequoias lost in a single fire event, and that really changed what we decided we were willing to do to protect trees if we could. >> reporter: and what they were willing to do called for innovation in the face of fire. from literally throwing what they could at the threat, like sprinkler systems that sprayed trees 35 to 40 feet in the air, and dropping fire retardant gel from aircraft into hard-to-reach groves, to extreme tree hugging, swaddling some of the world's largest trees, like general sherman and general grant in structure wrap. >> we had hand crews going in and doing this raking and fuel removal around individual trees in groves. we did backfiring operations to change fire behavior. >> reporter: but the loss of any sequoia, such rare and majestic beauties, is one too many to lose. >> it is dead. that tree is dead. it is not coming back. this tree that is at a minimum 1,000 years old and has survived many, many, many previous fires and should have lived another 1,000 to 2,000 years is dead, is gone. >> reporter: stephanie elam, cnn, the sierra nevada mountains. some good news in the golf world, tiger woods getting back in the swing of things. the golfing legend captioned that short video "making progress." it's the first video woods has posted of himself golfing since his car rolled over in february, leaving the champion with serious leg injuries. good to see him on the mend. thanks for watching, everyone. i'm michael holmes. the news continues after a quick break. i'll see you on the other side. balancing so you both sleep just right. and it senses your movements and automatically adjusts to keep you both effortlessly comfortable. so, you can really promise better sleep? 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( ♪ ) you found the one. now find the ring at zales, the diamond store. >> announcer: this is cnn breaking news. welcome to our viewers here in the united states and all around the world. i'm michael holmes. appreciate your company. we begin with the breaking news. police say several people are dead, more than 20 are injured, including children, after a vehicle plowed through a christmas parade in waukesha in wisconsin on sunday. they say one person is in custody and that there is no active threat to the community. a warning, some of the videos from the scene are disturbing. one woman catching the momen

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