blitzer, you can tweet the show at cnn sit room, you can like us on facebook. that's it for me right now. thanks very much for watching. i'm wolf blitzer in "the situation room." the news continues next on cnn. severe weather at this hour for a big part of the us. watches an warnings popping up as we head into the evening. if you plan to rob someone, plan your escape better than this guy. reflection after the chaos. images from the boston marathon attack. not this year within an upseat at the preakness means no triple crown winner again. and it's lot to mania. get your ticket while you can and spend your winnings now in your head at least. we're tracking a developing story out of damascus, virginia,

up to 50 people injured. one boy said he was pushed out of the way by an oncoming car by a parade goer. >> we heard screams behind us and he sort of pushed us out of the way from it. and me and all of us, we all looked back and saw misery. >> the dispatcher says up to six injured people have trauma victims. the reports are there was a 1909s cadillac that was participating in the parade. the driver may have had a medical emergency causing the wreck. damascus is a small mountain tour near the border with tennessee. it's one of those weekends when the weather is the news. tornado watches out west, severe thunder and lightning storms up and down the coast. take a look at northern alabama right now.

this is what a line of storms and one tornado left behind. this is the same storm system that generated at least 16 tornadoes in texas killing 6 people. let's head to the expert. the meteorologist is was. thankfully no nobody was hurt in this alabama storms. people in several states are not out of danger right now. >> well the first of it tonight and through the next couple of days is the plains, northern plains and even up to the upper midwest. tonight, tomorrow, monday and maybe into tuesday, the biggest tornado outbreak we've seen thus far. it has been quiet. we do have some warnings. a watch means that conditions are ripe for tornadoes to develop. we have tornado warning in nebraska an kansas. they both have just expired but they were the first of the night and it has been within the hour.

expect more to develop. there's the big picture where the tornado watches were. here's where the tornado warnings were in nebraska an kansas again. those expecting to expire. what they are on are not radar detected tornadoes but trong storms capable of producing tornadoes. why? it's been a benign and quiet april, may, june what we're seeing in terms of the severe weather. but finally now all of the ingredients coming together. we've got the jet stream, the fronts and also the moisture. the biggest threats under the gun, tornado, hail, wind gusts right through here from nebraska down west of wichita and down through oklahoma. now for tomorrow, tomorrow looks like the big show with this. it all pushes eastward, get to 20 million people potentially

being affected by this, kansas city whereby joplin, stong storms tomorrow afternoon an tomorrow night. there's the swath for tomorrow. so really robust system, things finally coming together for the potential for some very strong tornadoes tonight, mostly tomorrow an tomorrow afternoon potentially as well. >> thank you vur much. >> texas tornado victims are finally getting to see what's left of their homes after their devastating tornados. the residents in gran bury lined up to get to their homesed to. 16 tornado ripped through on tuesday an the story are chilling. >> i was in the air and i opened my eyes and i was about 20, 30 feet up in the air. >> the tornado picked you up? >> yes.

and whenever i opened my eyes and i see all the debris flying around me, a piece of wood came and hit me in the back of the head. >> six people died in one neighborhood alone. half of the houses in that neighborhood were damaged or destroyed. the very busy rail line from n to new hachb connecticut is shut down and will stay closed for a few days. they're trying to figure out how a commuter train derail and hit another train going in the other direction. >> reporter: don over my shoulder you can see part of one of the trins that was damaged in this collision and just beyond it is i 95. that's how close we are to where all of this happened. at this hour there is no telling exactly what caused this crash. the national traffic safety board investigatings -- investigate tors spent hours here looking at the aftermath of

the collision that happened on friday night. they are paying attention to one thing that they found but they're not saying that this is the cause. they located a fracture on one of the rails of the eastbound train. that was the one that was heading from new york to new haven and is the one that derailed and then another train smacked into it that was going in the opposite direction. >> it is of substantial interest to us. we'll be sending a portion of that track back to the laboratory in washington, d.c. for analysis. >> reporter: investigators also rord event recorders from both of the trains and they're being sent for analysis to the ntsb lab in washington, d.c. now initially 70 people were treated for their injuries at area hospitals. that number is way down now. only two people remaining in critical condition at the hospital. the majority of the others have been treated an released. there's no word on how long

these tracks will be out of commission. it's a very popular line and no direct service is working now between new york and boston. don. >> susan, thank you very much for that. let's be realistic. you have a much better chance of being struckly lightning than winning the powerball drawing. the odds a mere one in 175 million. but that hasn't stopped lottery fever from spreading all across the us. the jackpot sits at $600 million and the drawing is just hours away. cnn's lisa desjardins breaks down how much you will end up with if you do win. >> reporter: yeah, the odds are not so good for winning the powerball jackpot. they are one in 175 million but i guess lucky for lottery organizers that's not the number people are paying attention to. everyone is watching this one, $600 million. that's how much you will win if you are the single winner in

tonight's jackpot. that's the reason so many people are coming out to stores like this all across the country. but you know, don, folks like this woman who is in line hoping to win the lottery may not know 600 million is not exactly what you get. the lump sum for if $600 million jackpot is more like 376 million. in the end you would walk home with somewhere around 227 million. that's an estimate. of course that's still a huge amount of money even more money if no one wins tonight. the jackpot will roll over and wednesday we could see a jackpot approaching one billion dollars. that might not make sense to people but the truth is that the entire economy of the us virgin islands whereby the way you can buy a powerball ticket. >> thank you, lisa. why are we being such killjoys.

go out an buy your ticket. enjoy it. up next, this is not how you want your flight to end. passengers jumping out as flames pour out from under their plane and this. >> it's very overwhelming. i mean it took everything to hold myself together. >> the first responders share their emotional stories from the moments they entered the home of ariel castro rescuing the women held captive inside. to school, you deserve more than just flexibility and convenience. so here are a few reasons to choose university of phoenix. our average class size is only 14 students. our financial tools help you make smart choices about how to pay for school. our faculty have, on average, over 16 years of field experience. we'll help you build a personal career plan. we build programs based on what employers are looking for. our football team is always undefeated. and leading companies are interested in our graduates. we'll even help you decorate your new office. ok. let's get to work.

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a us airways flight was forced to make a belly landing. it was in flight with 33 passengers an three crew members on board. all are fine, no injuries to report. investigation is under way to determine why the landing gear failed. a plane's landing gear bursts into air in russia today. if pilot safely landed the plane. sky news is reporting no one was hurt. passengers evacuated the plane by jumping off a wing. for the first time the cleveland police officers who rescued those three women held captive for a decade are speaking out. it's an incredible story of course and it's hard to imagine

what it must have been like to be among the first to see amanda berry, gina dejesus and michelle knight. here are the police officers describing the scene in their own words. >> when i pulled up i didn't see amanda. i just saw officer sullen and officer tracy running across the street towards the house. then i got out of my car and i ran right over there right behind them. the officer kept yelling out cleveland police. and kind of seems like it was an eternity but i was so quick at the same time. >> when he got out of the car, i'm like, is that you? i'm looking at her face but i can't believe i'm seeing her. we got her, we got her right here. she's safe, her child is safe pep then we don't know what's going on at the house.

so i just asked her, i said is there anybody else in the house? he goes, gina dejesus sus and another girl and we us reich what? it was like another bomb shell with overwhelming force just hit me. i believe i broadcasted that gina might still be in the house, something going on in this room. and you any, i'm looking that way just waiting to see what's going to happen and it was michelle, she kind of popped out into the doorway and paused there for a second. within moments she came charging at me, she jumped on to me, she's like you saved us, you saved us. and i'm hold on to her so tight. and then within a few seconds i see another girl come out of the bedroom. i just look at her, you can immediately tell who it is just

thinner. and again i just needed confirmation. and i asked her what's your name? she said my name is ger gina dejesus. >> you didn't hear anything and then all of the sudden it was like the pitter patter of feet running towards you. the next thing i know, someone is in officer espada's arms. at that point all i remember is when he put her down, she jumped up into my arms and held on to me and screamed, please don't let me go, please don't let me go >> i said honey don't worry, i'm not letting you go. >> very overwhelming. it took everything to hold myself together. you know i have michelle in my arms and then you got gina coming out.

and it was like one bomb shell after another. that's when i broadcasted we found them. we found them. >> i can't even tell you how -- the emotions that we felt. it was unbelievable. and everything else was just a blur. i just -- it was just surreal. >> up next, if you decide to rob someone, you may want a better escape plan than this one. >> he is the undefeated welter weight champion of the world. but what are the three things that matter to floyd may weather most? he shares them straight ahead.

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north korea reportedly launched three short range

missiles into the sea off its coast today. south korea news agency reports the missiles were fired in a northeasterly direction away from south korea's waters. tensions are eased in the last few days and the reported launch of short range missiles should not cause much concern. >> the elderly father of a minister has been kidnapped by unknown militants. the man who is in his 80s was taken at gunpoint from his village. the deputy minister is a leading force if president assad's regime. >> the video show as man trying to steal a woman's cell phone. as he runs off, he runs straight into a city bus. the lady he robbed even help. ed him out from under the bus but he was arrested when he left the hospital.

floyd may weather jr. is the king of boxes. he is 44-0. the undefeated welter weight champion. his steel is worth $32 million per fight. that's some serious cash and that's not counting his cut on pay purview purchases. sports illustrated crowned him the highest paid athlete in america. we talked about three of his favorite topics, money, power an respe respect. you got your glasses of bling, you love the bling. >> a little flashy. >> but you think it's warranted, you think? it goes with your image. how much is it really you or is it about the character. >> everybody asks that question every day all day. i just feel like when it's time to entertain i go out there and

i entertain. when the cameras are off, i'm just like any other, any ordinary person. >> you they's what people pay for they want to see that from you? >> i think everyone wants to be entertained. that's why we like to go see movies. that's why we like to go to a basketball games and boxes matches, and football games an hockey and different things. you pay to be entertained. >> with the hbo, show time pay purview, someone from espn said show time didn't happen this time, it was less than a million, what do you make of that? is that troo? >> last time i checked no one knows about any contract with show time. no one from show time is speaking on confidential business. i'm pretty sure that i've done a

million or better. so i can care less. you know, when you have a great weekend and a great night, people that's unhappy sometimes, you know, speak on things that they don't know anything about, or sometimes people speak on certain things because they want attention. >> or they're haters? >> i don't have to say that. like i said before, it's all about money, power an respect. it's more like this. without the money you're going to respect me. and i just feel like money is very powerful. i'm in a powerful position. i'm the face of boxing. i'm one of the most powerfulest people in boxing, if not the most powerfulest person in the sport. >> you're 36 now, right? >> yes. >> how much longer do you think you can go on? >> i have 29 months left, 29

months and five fights. we can make it happen. >> that's going to be it for you? you're going to retire? >> i truly believe that will be the end of my career. i had a great career. >> 29 months and how many fights. >> five fights. >> money is done? >> money is still going to be made. >> money may weather. >> money may weather will be done. >> up next a million bucks of jewelry gone. how life is imtath art at the cannes film festival. a vitamin dedicated to your eyes, from bausch + lomb. as you age, eyes can lose vital nutrients. ocuvite helps replenish key eye nutrients. ocuvite is uniquely formulated to help protect your eye health. now that's a pill worth taking. [ male announcer ] ocuvite. help protect your eye health. and now there's ocuvite eye + multi. an eye vitamin and multivitamin in one. glass on floors. daily chores.

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sounds of gun fire in a jewelry heist are not unusual on screen at the cannes film festival but this time the drama was very real. >>. [ speaking foreign language ] >> well a 43-year-old man was arrested after firing a gun loaded with blanks during a live television interview. the chaos spent actors running for cover. the suspect told police he believes in god and wants to change the world. the psychiatrist says he is not mentally ill. if that wasn't exciting enough, jewels worth about $1 million were stolen from a hotel room in cannes. jack tapper has the details for you. >> reporter: this week they're the most riveting site on the rif yaria. their bodies bejewelled by the

jewels. allng an ir resis tabl target for pap rat zi and thieves. as the celebs at the cannes film festival discovered, those diamonds disappeared. a julie heist in the -- sounds like a plot in to catch a thief. >> but the jewelry company says this thief is no carry grant managing to make off with less than a million dollars worth of bling. some potatoes when yes you're talking diamonds in 2013. why are all of these jewellers bringing their wears to cannes? what's in it for them? big bucks. >> they're definitely passing through a lot of hands along the way. they're very see cure as they travel. we make sure that we have

accountability every step of the way. >> wendy says once her father, a jeweller, started loaning his pieces to celebs to wear on the red carpet, sales to real people spiked. >> it helps to show case your designs on a larger scale and a larger audience. >> while the investigation continues, french police say the thieves swiend the safe sometime between 8:00 p.m. an 3:00 a.m. prime party time during the week long party festival. perhaps the thief was taking advantage of that night's hot premier were the bling ring by director sophia coppola. that film is about a jewelry heist and it debuted within hours of the real heist.

>> that was jack tapper reporting. police say whoever did it had to have known where the jewels were being stored an say there was likely more than one person involved. they've released a statement saying the jewels stolen were not part of the collection to be worn by the stars. >> half past the hour now. i want to get a look at your top stories here on cnn. we're tracking a developing story out of damascus, virginia. a car plowed through a parade crowd. up to 50 people are injured. the car was a 1990s cadillac that was participating in the parade. the driver may have had a medical emergency causing the accident. da mas cause is a small mountain town near the border with tennessee. today's parade was held in honor of the appalachian trail. >> tornado watches are in effect and if you're in that zone been be on the lookout for very large

hail in coming hours. have you bought your ticket yet in? just hours we could find out who's won, who won the largest powerball drawing ever. 600 million up for grabs with a cash value of 376.9 million. there's even a chance the record jackpot could go up thanks to last minute ticket sales. if no one wins tonight's drawing the jackpot jump to $925 million. now you're talking. next, reflections after the chaos. a boston bombing victim recalls why one man stood out to him in the moments before the explosions rocked the marathon. you make a great team.

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coming up at the top of the hour, cnn will take you back to the day terrorism marred boston's biggest day.

back from boston moments of impact tells the tori from the eyes of those on the scene. one victim who noticed one of the bombers before the device blew. here's an excerpt. the images that stuck with me the most are the ones of all the people who thought nothing of themselves to run back into that scene not knowing what was there or if it was even safe to help people, help the victims. i am a freelance photographer and i am also a staff photographer at tufts university. this was my third straight marathon. the finish line of the marathon, it's a special place. everybody there is in such high spirits because they just ran a

marathon. >> i was me girlfriend's roommates and we were having a great time. we were watching the runners. and just that one guy, you know, he didn't look like he was having a good time. he just didn't seem right. he ruz there and then he was gone and then boom. next thing you know, i hear fireworks and i'm on the ground. >> you know you hear all of the cheering and then a loud boom goes off. and then silence. and then the second one went off and then it got really loud and chaotic. i knew it was bad when i saw people kicking over gates. these are the big barriers that the police set up.

people are throwing them down running on to the course. i had never seen anything like that. >> the top of the hour the photographers who were there on that date. here their incredible dates. back to boston, moments of impact begins at the top of the hour, 8 eastern. >> she is the radio an tf super store that many are calling the next oprah. i talk with wendy williams right after this. which is why we're proud to help connect our students with leading employers across the nation. (next stop: financial center) let's get to work.

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means commencement speeches. and michelle obama took first -- she told graduates of the historically black college to be an exam l of the next generation of black americans. it's a generation that's not living toup the example set by his ancestors. >> instead of walking miles every day to school they're sitting on couches for hours playing video games watching tv. instead of dreaming of being a teacher, they're fantasizing of being a baller or a rapper. >> mrs. obama urged listeners to reject what she called the slander that says a black child with a book a trying to act white. the president takes the stage tomorrow. he's a graduation speaker here at atlanta. tomorrow we're going to examine both of those speeches. they'll talk about the first lady's speech and the president

as well. any credence to what they're saying at black students? are they not impassionate enough about getting an education? best selling author, there's not much that wendy williams can't do. i sat down with her to get the scoop on her show, her family and her newest book. it's called ask wendy. straight up advice for all of the drama in your life. here's the interview. take a look. how are you doing? you're doing very well. >> i'm doing well. thank you were asking. >> your ratings are off the charts. >> ♪ >> this season has been -- the. >> the highest ratings you've had? >> been nothing but good. scary. >> why? >> we are in our fourth season. i have seen some really good tv shows get canceled after a few episodes or the first season. i don't like to think about it too much.

i just like to continue on without looking side to side. >> you have hot topics, you have hot give aways. i love the hot seat. >> thank you. when wearing a form fitting dress do you wear underwear or go coman do. >> i love the hot seat. >> you participated in the hot top panel. >> i love the hot topic panel. >> there are some things that we put in the show that i say why aren't haven't we been doing this all along, like the hot topic panel. the hot seat, a natural thing. >> i'm going to put you on the hot seat. wendy williams do you know mo who you are? >> i am a person of conviction and i stand by my convictions, be damned the rest of the world. >> how is that for a little girl from ocean town, new jersey who didn't think she fit in?

what was that like for you? >> i was looking at life from the outside as a younger girl. i figure it can only get better from here. to be celebrated in such a grand way every day with millions of people watching, it's more than a dream come true. i couldn't even dream this big. >> are you conscious of the audience you have? there'll be a 60-year-old white lady aba 30-year-old hispanic or a guy? what does that say about diversity to you? >> the wendy williams show is not a black thing or a white thing. it's a thing-thing that happens to be ring mastered by a nutty black women from new jersey. what i see when i look at my audience is the way my life has always been. u's the way i've been raised and that's that. it's everybody else, some of everybody else who is shocked at, oh my good ps, did i just see a woman in a ber ka and three of her friends sitting

next to her? yes, you did. it's the wendy williams show. come one, come all. >> why on earth would anybody ask a crazy black lady from new jersey for advice on television and in a book? why? >> my ask wendy book is, you know out of all of the books i've written it is my favorite and it is my favorite because this book was written by wendy watchers in all around the country. i asked them send me your toughest questions, and they did and i had hundreds and hundreds in a stack and i read every last one, don lemon, and put them in the appropriate pile for the appropriate chapters. online drama, here's a good one. wait, i got too many of them about where do i meet a good man. i'm going to save this one for the sex chapter, a three some,

the kids chapter, she's being bossed around pap by her 12-year-old? put it right there. you have to gain the trust anded a ration of people for them to ask you a question. so i appreciate that and i take my advice giving very seriously. >> i'm going to end where i started. what do you think you are? >> i am my parents' daughter, i am my -- a cry baby. don lemon, grateful, that's who i am. a grateful woman. >> as someone who felt other and who actually came out on your show -- >> how are you doing? how you doing. i thank you for what you're doing i am so proud of you. much success. continue being who you are.

you inspeier all of us. >> don. >> you're fabulous. thank you. if you have a foul mouth sometimes but she is really a sweetheart. it's kind of an act. it's a secret. that's who he is on television. >> a daytime talk show host has a little fun at the expense of sanjay gupta. we used to live with a bear. [growl] we'd always have to go everywhere with it. get in the front. we drive. it was so embarrasing that we just wanted to say, well, go away. shoo bear. but we can't really tell bears what to do. moooooommmmmm!!! then one day, it was just gone. mom! [announcer] you are how you sleep. tempur-pedic. but with advair, i'm breathing better. so now i can help make this a great block party.

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our chief medical correspondent dr. sanjay gup that has been given a pretty prestigious honor. he was named one of the most trusted people in american by reader's digest. but a certain talk show hostel len degeneral ras wasn't too happy. less son number one, do six shots every day, graduate, if

beer is your think, dripg a real beer. i love the bars. i have literally traveled all over the world to every continent wasted completely out of control. i have conceived children in i was driving around in my car with beer. >> i think the corollary is also true. never being hammered is bad. too careful. not enough risk. not enough living. truth is i want you wasted and waking up every morning sick. go do it. love you. >> he's ahead of me. and as america's 18th most trusted person i promise you that footage was not doctored. >> i know sanjay pretty well. and i think all that is true. everything he said. he wants people to get wasted. i'm kidding. >> i'm so deeply offended by

ellen. >> sanjay's on the phone right now, by the way. is there something you want to say to ellen, sanjay? >> ellen, i can't believe this. and you in 2009 recommended 20 shots of tequila in her commencement address. and she's thrown stones, don. can you believe this? >> i can't believe it. so sanjay, i just gave a commencement yesterday at lsu. and you've given a number of them. but this time of year, i mean, in all fairness, people -- those kids want to be inspired, right? >> absolutely. they want to be inspired. they want to hear about what's happening in the world sometimes if they're asking people like you or me to speak and be given some context about all these things. yeah. it's inspiring to see them because you know, you feel better about the world when you interact with these graduates. i'm sure you felt the same way. >> i did. i told them, sanjay, i said, listen, you guys have nothing to worry about. if you knew how much i partied when i went to this school, and look at me.

>> ellen should be making fun of you, don, not me. >> no, that's because you were voted number 17 on the "reader's digest poll" of most trusted people in america. one spot ahead -- that's not bad. congratulations. >> thank you very much. did you see who number 1 was? i think this is really interesting. people haven't seen this poll. >> it was robin roberts, right? >> tom hanks. >> oh, it was tom hanks. >> tom hanks, number 1. which i found very interesting. he's -- i don't know the guy. he seems -- he has a trusting face, he said. his eyes. you know, it was really interesting to see who americans trust. a movie actor in this case number 1. >> but you know, an actor, someone who plays roles. but you know what, sanjay? you are number 17, but people -- people should know this. i mean, yes, we're on the news and you're on the news and you're the most trusted. but you have a whole great team behind you who help to make the most -- one of the most trusted people. >> no question. i mean, you and i know that best.

the people in the medical -- you know, we have a medical unit at cnn, health and medical unit. and there's, you know, a couple dozen producers. and i joke around with them. any of them might qualify for several years of medical school with the amount of work that they do and the diligence they show. it's incredible. and they make it all happen, as you know, don. >> yeah. so hey, sanjay, we're going to talk about this bionic arm story, if you can stick around. i'd love to get your opinion on it. so hang around a little bit, okay? >> okay. you got it. thanks, don. >> stand by. remember the young georgia woman who survived flesh-eating bacteria after a zip line accident last year? 24-year-old aimee copeland had to have both hands, a leg, and a foot amputated. now she has been fitted with the latest in prosthetic hands. >> these hands are going to allow amy to do more than any other hands that are currently available in the world. >> it feels amazing because you know, with the other arms i had they really didn't feel like an extension of my body.

this just feels very freeing. it's more lightweight. absolutely. and the hand actually -- you know, it seems like this could be my actual hand. >> so copeland says she is a neat freak and she's looking forward to cleaning her house with bionic hands. she can now hold towels, chop vegetables, hang clothes, and even flat-iron her own hair. so sanjay, i've been watching some of your stories, especially with our wounded warriors who have -- people who come home injured. and just the advances in prosthetics now and bionic hands and arms, it's just amazing just to see within the last couple of years. >> yeah. it is amazing. and the jump from prosthetics to bionics, which you alluded to here, was huge. there are still people who think about prosthetic arms and imagine something that really has no independent function, not motorized in any way, it's basically just a figure of an arm or a leg. here, you know, what amy's describing, we've done stories on this particular prosthetic device, you know, the first in the world who had that, we profiled them, it's remarkable.

just the fine finger movement. i don't know if you're still loing at video. but to be able to coordinate that and get the muscle input, you know, from the existing arm and be able to tell the finger to do that is such a remarkable advancement in science. and people have been working on it, as you say, for a long time. but to see it like this is incredible. >> thank you very much. 17th most trusted person in america. enjoy your time. thanks for calling in. >> i'm going to take some grief on this from you, i think. >> oh, yeah, wait until yi see you in person. [thinking] i'm still working. he's retired. i hope he's saving. i hope he saved enough. who matters most to you says the most about you. at massmutual we're owned by our policyowners, and they matter most to us. whether you're just starting your 401(k) or you are ready for retirement, we'll help you get there.

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some people will go to great heights for a good joke. here's cnn's jeanne moos. >> reporter: did you hear the one about the joke written in the sky? >> when that h came, everyone went crazy. >> reporter: and that was just the first letter. not the punchline. >> hello. >> reporter: comedian kirk brown begged for donations through his freezer door on the crowdfunding site kickstarter. his goal was to hire a skywriter to -- >> insert absurdity or stupidity into people's lives. >> reporter: by flying over downtown los angeles writing "how do i land?" that should make folks smile. we haven't seen such elaborate skywriting since the couple in "malcolm in the middle" celebrated their love way heart formed by two planes, which proceeded to collide with one another when the halves of the heart met. but we digress. within a couple of days kurt

received almost $7,000 in donations. more than enough to write a ten-character joke. but it was a windy day in l.a. and almost as soon as the plane would write a word the letters would be g-o-n-e. so at the watch party kurt hosted on a rooftop -- >> as soon as like the second letter was done it just blew away. and everybody was like, oh. okay. >> reporter: so why does this look so good? it's a composite. so convincing one poster said "this person can write better with a freaking plane than i can using a pen." but this is what the joke actually looked like. everyone's favorite part was the question mark. >> he did it all in one move. it was a big curl and then he straightened out and then turned off his smoke and then just hit the smoke one more time for just the period at the bottom of the question mark. that was pretty awesome. >> reporter: for his next project kurt wants to put jokes on billboards. hundreds of billboards.

at least they won't vanish the way the skywriting did. >> so you can see how by the time he started on "do" "how" was almost illegible. >> reporter: funny how the wicked witch in "the wizard of oz" made it look so easy. >> "surrender dorothy." >> reporter: better to have your joke go up in smoke than to have it bomb, even if it did take 20 minutes to get to the punchline. jeanne moos, cnn, new york. >> i'm don lemon. an "ac 360" special, "back to boston: moments of impact" boston: moments of impact" begins right now. -- captions by vitac -- www.vitac.com good evening. i'm anderson cooper. it's been over a month now since the deadly bombings here in boston and there's time now to reflect and really investigate what happened. tonight we focus on several iconic images from the terror attack and its aftermath. we'll meet the photographers who