of 8,000 structures were damaged or destroyed. nearly two dozen people, including three young men, took cover at a convenience store. the video is dark, but the audio, the sounds tell a story. >> oh, my god! [ screaming ] >> imagine pushing open the door after that incredible experience. elsewhere in joplin, one couple recorded the scene moments after the tornado struck. destruction all around them, homes on fire. they called out for the young man's sister and fiance. >> sarah! sarah, mike! >> of course, there's no end to the heartbreak, but no end to hope either. we met tracy pressler, looking for will, who was driving home with his dad and was sucked out of the sunroof of his suv as the tornado struck. >> we cry a lot. >> yeah. we cry. >> but we have faith, you know, that they're going to find him alive. you have to have hope and you have to pray. and if they don't, we pray they find him. >> more on will norton's story and also that of lantz hare. >> until he's find, dead or alive, i've got to find him. >> parts of oklahoma were struck by tornadoes, as well. frank wood rushed his mily into the storm shelter as the twister struck. >> we've got to go now! it's coming right over us. we're right in its pat >> one beloved member of the wood family, roxie the dog, didn't make it into the shelter. all these stories and details tonight and witness the courage of people beset by catastrophe and tragedy. but we start at the beginning. it's 5:40 on sunday evening and a monster rakes across joplin, missouri. >> strong tornado! >> as the twist errors towards this convenience store -- >> no, they haven't yet. the sirens aren't going. >> customers huddle in terror inside a dark refrigerated storeroom. [ screaming ] >> jesus, jesus, jesus, heavenly father. thank you, jesus. >> amazingly, everyone inside survives. >> we got debris on the ground. >> the massive tornado, believed to be three quarters of a mile wide, with winds exceeding 190 miles per hour, rips a path of destruction four miles long right through the heart of the city. >> oh, my god! >> by monday morning, the devastation was clear. buildings on fire. entire neighborhoods wiped out. st. john's medical center, with 183 patients, took a direct hit. it was unclear if any of the patients were uninjured, but the twister heaved gurneys for blocks. >> the windows were blown out. there's debris hanging outside the windows. part of the roof is missing. i'm now standing behind the hospital and blocks, brick walls are just crumbled. >> and it struck the high school as seniors were finishing graduation ceremonies nearby. the school was demolished. >> i walked around as much as i could to see it. it looks like it's been bombed from the outside in. it's terrible. >> the storm left cars and trucks on top of each other. this walmart, now flattened. this home depot crushed. we don't know how many shoppers were inside when the twister hit. thankfully residents did have warning. >> by our count, we had 17 minutes with the siren and the strike. >> the level of destruction is overwhelming. not just block after block of rubble but neighborhood after neighborhood, flattened as far as the i can see, even from the cockpit of a helicopter. the first job for the first responders was search and rescue. a handful of survivors were pulled from the rubble, but the level of destruction was so extensive, they were prepared to find bodies. take a look. at joplin's home depot, they have not found anyone alive. they've only found bodies. >> everything we did yesterday were recoveries. >> do you think there are more people still inside? >> we have indications from our canine alerts that yeah. >> do you think they may be alive? >> i think it's unlikely they're alive. >> doug westhoff is the task force leader. >> we had people coming by yesterday recognizing vehicles from their loved ones and knew that they were potentially underneath those slabs and one knew that his son-in-law and two grand kids were in all likelihood in that store. >> mortuary teams stand by but they still hope to find someone alive. >> the dogs are trained to find anyone alive. this is the job we've been called out to do. >> this task force has four dogs working in joplin. her dog is named katie. >> they've got to be naked. as you can see all this debris, if he has a collar or vest on, they can get trapped. so she's got to be naked. i take all of this off. when i get her ready to go, i direct her into the area. >> many of the fatalities at the home depot have been found at the front of the store. if they were huddled near the front, that would have been the most dangerous spot for them. >> unfortunately, yes. >> that's where the walls came down. they've used heavy equipment to drill through the collapsed walls and neck underneath, then push them out of the way. this is a wall of the home depot? >> sure. >> and it fell? >> what you've got is a piece of concrete. >> this is all insulation? >> absolutely. >> the walls may have collapsed, but oddly the tornado left many of the store shelves still standing. >> this was a much more survivable environment here than it would have been to be at the front of the store where those huge concrete falls came down on folks. >> have you already been through this area? >> yeah. we were able to probe in from different places. >> with so much heavy equipment needed, the search is sometimes frustratingly slow. how much are you working against the clock in terms of bad weather coming later today? >> we're working against the clock both for the survivability profile and the forecast for the bad weather. so yeah, we're always under the gun for that. we had to shelter our folks a few times yesterday just based on the lightning strikes and the hail and rain, it just makes it impossible to do it safely. >> time is running out, and there's still so much to do. doug westhoff is trying to be optimistic. >> if the space is right, if the void is big enough, people can last many days like this. so we're two to three days into this thing and we're sort of the eternal optimists out here. we're going to maintain hope as long as we can. the reality is creeping into the back of your brain this is becoming less and less likely a rescue and more and more likely recoveries. but that's the reality of the world we live in. >> by the end of the day, they find one trapped person, but sadly that person had already died. the searching continues, however, even here in joplin, amidst all this misery. even here there is still some hope. there is still hope in joplin. up next, inside the search for the missing. two teenagers vanished. the families desperate for answers. later, caught on tape. a family scrambling for shelter as the tornado gets close. but where is the family dog? >> that's once-in-a-lifetime. you'll probably never see this again. and it's moving fast. it's huge. >> they got into the shelter. the dog didn't. you'll want to see how this story ends, coming up. what's so special about web browsing on the new blackberry playbook? ♪lash! ah ahh... that's right, it runs flash. so unlike some tablets we could mention, you get the best of the internet, not just part of it. f the count on chevy event is here. your ticket to a cruze eco. 42 mpg and over 500 highway miles a tank. one of our 9 models over 30 mpg highway. fuel up, rock on. very well qualified lessees can get a low mileage lease on a chevy cruze eco for around $159 a month. or qualified buyers can get no monthly payments for 3 months. fuel economy based on epa estimates. deferred payments offer ends may 31st. years ago, my mother taught me. and over the years, i've taught my family. we've created so much here together. so when my doctor said that over those years my high cholesterol was contributing to plaque buildup in my arteries, i listened. and that's why i'm fighting my cholesterol with crestor. 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[ male announcer ] if you can't afford your medication, astra-zeneca may be able to help. i'm tom foreman in washington. tonight in joplin, fear is starting to give way to frustration. more than 150 people are still missing since sunday's record twister, and the death toll is expected to rise. but families are frustrated they can't go to the morgue and check for loved ones. officials say they're using dna testing and fingerprinting to identify remains. early tonight, the coroner told eliot spitzer where specials are being exceptionally cautious. >> the situation that we had early on is we had some -- a family members that made identification on an individual, let's say start off with, and they got him to a mortuary, got him embalmed and dressed. and when they went back, it was not their son. moammar gadhafi's diplomatic window is closing. the russian president changed course today, joining american and european leaders and calling for the libyan lead tore step down from power. medvedev's statement came at the end of the g-8 summit. and the rest of bernie madoff's belongings will go on auction next week. now back to our anderson cooper special report "deadly impact." i'm tom foreman in washington. this is bad. oh, my gosh. this is awful. look at that. that is destroyed. completely. >> so many families in joplin are still searching for loved ones and refuse to give up hope. will norton disappeared while driving home with his dad from his high school graduation. his dad, mark, survived. the powerful winds of the twister pulled will right up through the sunroof of their suv, according to his dad. his family heard reports that a young man watching will's description was take on the a local hospital and moved to another hospital. well, will's sister tracked down that hospital and visited the young man, but sadly it wasn't her brother. >> we'll be okay. we've got a lot of people looking for him. a lot of people love him. >> for will norton's aunt tracy and sister sarah, the wait is at times too much to bear. will was driving home from his high school graduation with his father mark when the tornado struck. >> they thought if they could pull into this subdivision they could find a place to go. they only got as far as that median when the tornado picked him up and they got wrapped up in this stuff and it was a big mess. i don't know where that came from. >> what has he told you about what happened when the tornado hit? >> he said that he remembers flipping and being airborne and just kept going. >> will was in the driver's seat. his father tried to grab him. >> my brother grabbed him from across the seat to hold onto him. he remembers my nephew just started reciting scripture, one verse after another. my brother was a little shocked but will did it all the way until he went out the window. >> what window did he go out? >> the sunroof. he went up. >> so he was sucked out of -- >> he was literally pulled through the window while my brother held him and he was ripped out of his arms. >> mark was found in this ditch. there's been no sign of will. >> we've called hundreds of hospitals and right now we think he's still out here somewhere waiting to be found. >> will's family is urging people to search not just in joplin but areas further away. >> he could be between here and springfield, missouri. we're not talking half a mile or mile. we're talking miles. that storm could have taken him miles. >> canine teams have been called, some trained to find the living, others to find the dead. >> i think sarah's mom, i think she's having the toughest time, as any momma would have. you don't want to think that your kids are gone. it's really tough. so we just ask for prayers for everybody. people that are following on facebook, we really love you and we pray for everybody. that's what we want. it's going to be okay. we'll find them, baby, we'll find him. >> steve lee, retired battalion police chief for the joplin fire department, is working around the clock to find will. they've searched the water now? >> they're on their second search just to confirm it. that's where we're at there. >> you're carrying a picture of will. >> yes, i have a picture of will, in case i come up to somebody to show them who we are looking for. >> we have faith that they're going to find him alive. we just pray they find him. we're a strong family, and we're going to be together and we're going to find him. someone is going to find him. a lot of people are looking and there's a lot of families that are suffering. and we hope they find their loved ones alive. >> although ton identified young man in the hospital turned out not to be will norton, the anguished family of lantz hare was one of them. lantz was last seen with a friend. lantz was ripped out of a car. i spoke with his dad, mike, in joplin. he vowed to search until he found his son, alive or not. what was the last you knew about lantz? >> my youngest son called me, and it was maybe ten minutes after the storm, and they -- him and my ex-wife had been trying to get ahold of him over and over and they couldn't. and i started calling him and still never got anything. i called it all last night. >> you're still calling his number? >> i can't stop. i don't know why. i stayed up until like 2:00 last night and that's all i did. >> called his cell phone? does it ring? >> it rang for the first day and a half and now goes straight to voice mail. but just in case he gets it, i want him to know that his dad loves him. >> how are you holding up? >> i've got a lot of strong people around me to pick me up. that's about it. i mean, something as catastrophic as all this, you don't know whether he's underneath a piece of wood or whether he's in the hospital or where he's at. and we've searched and searched and searched. so i've got to keep searching. >> you're going to go to springfield now and hope for the best? >> i'm walking away from here and going to springfield and kansas city and wichita. >> you're going to check all the hospitals? >> we've had reports that there's a kid that looks like lantz. i can't just sit here and the hospitals tell us it may not or it may be him. you know, some of the reports are the bruising is so bad that they really can't tell. well, i can tell whether it's my son. i can tell. and i will tell. >> you were asked to give dna? >> i was asked to give dna todd at missouri southern, a little while ago and that right there just set it in me that there can't be no stopping until lantz is found, dead or alive, i've got to keep pushing. i've got to find him. >> it's important to hold onto hope? >> oh, my god, yeah. if you don't have hope, what are you going to do? look at all this. if every family out here didn't have hope that it's going to be better, i've heard on the radio they're going to rebuild st. john's. that's hope. you've got to have hope. you've got to have god. you've got to have friends and family. you've got to have all of it combined to get you through this. >> thank you for talking to us. i appreciate it. >> thank you. >> stay strong. >> sadly, after i spoke to mike hare that day, we learned that his son lantz did not survive. up next, a brother desperate to find his sister minutes after the tornado hit. >> sarah, mike! sarah, mike! >> sarah, mike! mike, sarah! >> frantic search, destruction everywhere they looked. see what happened to them, coming up. plus, they rode out the tornado almost in complete darkness inside a walk-in beer cooler at a convenience store. do you even have a name? 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[ male announcer ] life happens pretty fast, and the best way to keep up is to be just as fast. and now you can get the speed you need with the cut you want. the all-new john deere eztrak z600 series -- nine miles per hour, a four-year limited warranty and an expert cut in expert time. what will you create? our best deals of the season are happening now. learn more at johndeere.com/greentagevent. when you look at this, i mean, what does the future hold? >> well, this is just not the type of community that's going to let a little f-4 tornado kick our ass. so we will rebuild and recover. >> this is not going to kick your ass? >> no, it's not. it's been a long time since we had one this bad. >> mike wolfson, the mayor of joplin, missouri. the resilience of the people of joplin will no doubt get them through the weeks and months and even years ahead. three quick-thinking young men took cover in a gas station convenience store and crammed into a walk-in beer cooler with about 20 or so other people. one was isaac duncan and recorded the experience on his iphone. you're not going to see much, but what's said as the twister struck tells you the whole story. >> oh, my god! [ screaming ] >> heavenly father. jesus, jesus, jesus! >> i spoke to isaac and his two friends about their incredible experience. you actually shot the video. >> yeah. >> you go to the back of the store and you know the storm is coming. the front door was locked, right? >> basically we had to pull over to the closest thing that we could find, which was this gas station. so we got out, sprinted up to the door and they had locked it just so the door wouldn't fling open. we pounded on the door and the clerk came up and unlocked it and we hurried back to the back of the store. >> how many people were in there at the time? >> probably about 18. >> how quickly did the storm hit? >> probably a minute the other person ran up to the door. the clerk ran up as the storm was getting close and unlocked the door for him and saved three people more that ran in. and within 30 seconds of that, we were all down in the back and the glass was just glowing out of the entire front of the store. >> what was it like for you? >> it sounded like 100 freight trains running close to the building. it started to cave in and i noticed the smell of gasoline outside, which freaked everybody out. >> you were worried a fire might break out? >> yeah. towards the end of it, you could smell smoke outside, so we figured it was time to get away from the building. >> how long did it last for, cory? >> three or four minutes, you know, of bad, bad hail and debris. like that second part where it hits is just so -- the sound, the force of it is so loud. >> what goes through your mind when you're experiencing something like that? >> honestly, it was very surreal. i never felt anything like it. it was almost like a weird calmness. i didn't think i was going to go out in a tornado, but i think i'm going to. >> you were thinking that? >> oh, yeah. we all sprinted into this little cooler and packed 20 people in. >> how big was the space? >> you know, ten feet by, you know, probably seven feet. it wasn't big at all. >> so you're all pushed up against each other? >> oh, yeah. all the shelves and items were falling on people. >> everyone was getting cut by class. the only thing remaining from the building is the cooler we had jumped in. a big part of that was the clerk at the store. i mean, not only did he run up and unlock the door, but he was the last p