attack. >> looks like we've got a christian or muslim [ bleep ] bus driver. >> reporter: the mayor condemned the attack. >> clearly what happened on that train was an act of terrorism. what happened on that train was a hate crime. i want to make it very clear. we do not tolerate that here in portland, oregon. >> reporter: the mayor wants to stop a protest sponsored by an alt-right group. he's asking the federal government to step in and revoke their permit. he has yet to hear back on that request. jeremy christian is set to be arraigned tomorrow. >> thank you very much. the u.s. military is on the ground and in the air over northern iraq this memorial day helping government forces liberate mosul. just a small part of the city remains under isis control but the enemy is not giving up. charlie d'agata is there. >> reporter: iraqi security

forces video shows the house-to-house fight in the final assault. the battle has gone on for seven months, longer than anyone predicted, costlier than anyone wants to admit. the u.n. estimates that 200,000 residents remain trapped inside the dense, urban terrain of the old city and warns they're in grave danger as iraqi forces try to hunt down isis fighters hiding among them. an abandoned home has become a front line command center. this screen shows a live drone camera zeroing in on suspected isis targets. he sit says sparing the civilian population is the single biggest obstacle. queer we're using this technology to watch movement of civilians to protect them from harm. but the narrow streets make it difficult for isis to deploy its

most deadly weapon too, car bombs. they showed us a whole range. some of these larger vehicles are tractors. these are ordinary civilian cars. they've had this steel reenforcement, but only in the front, to protect them from being stopped before they reach their target. car bombs aren't the only worry for civilians trying to escape. there are reports that militants have booby trapped homes with bombs and they have trapped children. given that civilians are used as shields, the militants are not going to give them up easily. it makes it difficult for airstrikes, but they are continuing, targeting 49 isis vehicles in and around mosul in the past few days alone. >> charlie, thank you. as america remembers the fallen this memorial day, david martin has this story about the advances being made in tweetire

the wounded. >> reporter: just looking at brandon corona, you would never guess what he's about to do. >> i'm at peace with it, my family is at peace with it. >> reporter: he's asked doctors to cut off his leg. he gave up trying to save it. >> did was all rod, screws and bone that didn't grow back right. it looked like a leg, but it wasn't a leg. can you see the residual hardware that brandon had in his ankle. >> reporter: the doctor amputated his leg in a six-hour operation at brigham and weomens hospital in boston. he used a new procedure. >> in the past, all that has been asked of an amputated limb is to provide an adequate padding surface for a prosthetic. >> reporter: the new procedure connects the front and back muscles, allowing them to keep

working together and communicating with the brain. >> that is what allows us to walk normally without looking at our feet. >> reporter: the surgery is experimental. the goal is to connect brandon's stump to a new generation of smart prosthetics now under development at m.i.t. that would move like a human foot. >> if we can elevate amputation to an equivalent form of salvage or an equivalent form of therapy, that, in some ways, is a major win for patients. >> reporter: two days after his surgery, all that's left of his lower left leg are the screws that used to hold it together. >> i am happy that i have lost my leg and i'm ready to start recovering again. >> reporter: if the new procedure doesn't work, he will use a standard prosthetic. either way, the ruin the leg that has been ruining his life for the last few years is gone. coming up next, new safety questions after a child flies

off a brand-new water slide. and later, remembering jfk, the story behind the sketch he drew on the last night of his life. i pinky promised my little girl a fabulous garden party for her birthday. so i mowed the lawn, put up all the decorations. i thought i got everything. almost everything! you know, 1 in 10 houses could get hit by a septic disaster, and a bill of up to $13,000. but for only $7 a month, rid-x is scientifically proven to break down waste, helping you avoid a septic disaster. rid-x. the #1 brand used by septic professionals in their own tanks.

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a giant water slide at a brand-new park in dublin, california, was closed for the holiday after a 10 year old boy flew off the slide on saturday. here's dimarco morgan. >> reporter: you can see in this video seconds after plunging down, the boy's body hit the pavement like a rag doll. amazingly, he was able to get up and walk away with minor cuts and bruises, the ride has since been shut down until further notice. >> whenever we have an incident, no matter what magnitude where anyone gets injured, we will shut the slide down and make sure that the slide is on rating safely. >> reporter: the ride is operated by the city of dublin and had just opened for business this holiday weekend. it was another wakeup call for millions of visitors who flock

to water parks this time of year. sadly, in a different incident last year, 10 year old caleb swab was killed instantly in kansas city, kansas. he was riding what's considered the tallest slide in the world, 17 stories high. the ride was delayed three times for safety concerns. here, this video shows rafts flying into the air. 28 states have rules over rides while nine have none at all. >> we need to spare no money in developing regulations that are consistent across all 50 states. there's absolutely no excuse or reason why a 10 year old child shouldi should be ejected from a water slide. >> reporter: inspectors were there to determine what went

wrong. still ahead, a tiger mauls a zookeeper overseas. thanks for the ride around norfolk! and i just wanted to say, geico is proud to have served the military for over 75 years! roger that. captain's waiting to give you a tour of the wisconsin now. could've parked a little bit closer... it's gonna be dark by the time i get there. geico®. proudly serving the military for over 75 years. garden party for her birthday. a fabulous so i mowed the lawn, put up all the decorations. i thought i got everything. almost everything! you know, 1 in 10 houses could get hit by a septic disaster, and a bill of up to $13,000.

but for only $7 a month, rid-x is scientifically proven to break down waste, helping you avoid a septic disaster. rid-x. the #1 brand used by septic professionals in their own tanks. because your carpet there's resolve carpet care. it lifts more dirt and pet hair versus vacuuming alone. resolve carpet care with five times benefits investigators have not yet said what caused a navy s.e.a.l.'s parachute to fail during a demonstration yesterday in new jersey. the s.e.a.l. fell into the

hudson river and later died at the hospital. the parachute landed in a parking lot. he has not been identified yet, he was part of the elite leap frogs team. a zoo north of lop done called this a freak accident. the animal got into an enclosure where the woman was working. the park was evacuated. frank defor was named sportswriter of the year. did commentary on national public radio. in 2013, president obama awarded defor the national humanities medal. he died yesterday at his home in key west, florida. he was 78 years old. up next on the jfk memorial, rae storing a piece of camelot. . ,

at arlington cemetery, the grave of john f. kennedy, president and war hero, born 100 years ago today. when asked how he became a war hero, he said it was involuntary. they sank my boat. >> reporter: the night before president kennedy traveled to dallas, he made a simple sketch. it may have been the last thing he put on paper. >> this was at the end of october 1962 at the end of the

cuban missile crisis. >> reporter: she is president of the kennedy museum. >> it was out in the sea and the salty air but somehow was always the source of renewal and inspiration for him. >> reporter: victora was given to him by his father when he was 15. he named it, cared for it and sailed it for three decades. it needs to work because it's in the elements. >> it's exposed to the elements over the summer so people can see it. >> reporter: in osterville, massachusetts, we watched as it was being restored. >> you've been working on these boats for how long? >> i started 1960. a lot of history here. >> reporter: kennedy credited the boating skills he learned on victora with saving his hive in world war ii.

and in 1963, pictures launched the love affair with the young couple. >> they have boating in the dna. >> reporter: he overseas the yacht yard and oversees the v n varnishing. >> every year we give it a coat of varnish. we want to make sure the boat's in great shape and protected for all the visitors. >> reporter: it was returned to the library earlier this month, back in its prime spot on the shore line. what do you find most fascinateding about it? >> it was his, and it was so important to him over so much of his life. it's wonderful to see her here in the sunshine. >> reporter: for the stories it holds can be shared anew. >> that is the overnight news for this tuesday. for some of you, the news continues. for others, check back a little later for the morning news and cbs this morning. from the broadcast center in new york city, i'm jeff glor.

this is the "cbs overnight news." welcome to the overnight news. i'm michelle miller. the pentagon will test a new air defense system today designed to knock an intercontinental ballistic missile out of the sky. that's never been done before. but the test takes on new urgency after the north korea launched another missile of its own, it was the 12th this year and it's rattling the earth from tokyo to washington. >> reporter: north korea has now conducted three missile launches in just the past three weeks. the latest comes after the country claimed its leader, kim jong un, oversaw a successful test of a new antiaircraft system this past weekend. japan was quick to condemn the

new lev missile launch as has south korea, whose president says he wants better relations with north korea. despite sanctions, norpt korea's capabilities continue to grow. last week they said they perfected a missile that they would start mass-producing. and earlier this month it tested what is believed to be its longest-range missile yet, potentially capable of carrying a nuclear warhead but still not able to reach the united states. 2014 was the last time the u.s. tested its west coast missile defense system, which has only worked in about half of the trials. on tuesday, the oust military will attempt to shoot down an intercontinental ballistic missile for the first time. the trump administration has now sent two aircraft carriers to the korean peninsula. but u.s. defense secretary james mattis said on "face the nation" that a military conflict with north korea would be catastrophic. >> the north korean regime has

hundreds of artillery cannons and rocket launchers within range of one of the most densely-populated cities on earth, which is the capital of south korea. >> reporter: while north korea continues these missile tests, it has not conducted a sixth nuclear test, which many people have expected. when we were in north korea last month, i asked if they are still planning to conduct that test, and they said kim jong un will do it whenever he sees fit. thousands have been badly wounded in the wars in iraq and afghanistan. many have lost limbs. now an experimental procedure offers new hope to those wounded warriors. david martin reports. >> reporter: just looking at brandon corona, you would never guess what he's about to do. >> i'm at peace with it. my family's at peace with it, and my friends think i'm crazy. >> reporter: he asked doctors to cut off his lower left leg.

he gave up on trying to save it. >> it was all rods, screws and bone that didn't grow back right. it looked like a leg, but it wasn't a leg. you can see the resid yule hardware that brandon had in his ankle. >> reporter: his leg was amputated at brigham and women's hospital in boston. he used a new procedure. >> in the past, all that has been asked of an amputated limb is to provide an adequate padding surface in order for a prosthetic to be adequately mouptded. >> reporter: the new procedure connects the front and back muscles to allow them to keep working together and communicate with the brain. >> that is what allows us to walk normally without looking at our feet. >> reporter: the surgery is experimental. brandon corona is only the second patient to undergo this type of amputation. the goal is to connect his stump to a new generation of smart

prosthetics now under development at m.i.t. that would move like a human foot. >> if we can elevate amputation to an equivalent form of salvage or an equivalent form of therapy, that, in some ways, is a major win for patients. >> reporter: two days after his surgery, all that's left of his lower left leg are the screws that used to hold it together. >> i'm happy that i have lost my leg and am ready to start recovering again. >> reporter: if the new procedure doesn't work he will use a standard prosthetic. either way, the leg that's been ruining his last four years is gone. it's mosquito season again in much of the country, and that means more concerns about the zika virus. since last year, more than 5,000 americans have tested positive, most contracted the virus overseas, but more than 200 caught it in florida. manuel bamore cass reports from miami. >> reporter: a new push for zika

awareness. the cdc is still seeing up to 40 pregnant women every week nationwide. there have been no new locally h locally-transmitted cases since march, but local officials are not letting their guard down. >> reporter: jessica flores was understandably nervous as she prepared to give birth in january. she was pregnant at the height of the scare. when her daughter daniella was born, she looked and sounded like any normal newborn. no adviceable defects. her father gave thanks right on the delivery room floor. now still healthy at four months, daniella continues to be measured and monitored for environmental issues beyond microcephaly. >> she appears to be every bit a good, healthy, beautiful healthy

baby girl. but what are the risks for her going forward? >> part of the rhieason we continue to bring her baby back for check ups, we want to see are the back of the eyes developing normally, is she hearing properly. >> reporter: she says one in ten babies born to zika-positive moms have some sort of serious birth defect, but she worries that many are not receiving critical follow-up care. >> we lose about a quarter of those families after delivery, where they go back to their community hospital, their community pediatrician and they don't stay engaged with our care. and that means we don't have any data on what's happening with them. >> reporter: in south florida, crews are hitting the ground early, using larva cide. a controversial pesticide was dropped last year and residents protested. >> hey, hey, we don't want no spray. >> reporter: the mayor hopes it

won't come to that again this year. they've beefed up the mosquito control budget and are pushing awareness. >> if you don't plan on having a chieshlgsd et cetera, it's your personal responsibility to make sure you don't become a transmitter to somebody that does. all of us have to take care of all of us. >> reporter: but not every home own earn owner is up to speed. it's not gone. jessica flores told us she wesh went public to promote awareness so others can avoid the stress and ang si anxiety she suffered. >> we live in a time of zika, and this is something we're going to deal with this season and maybe next season, ultimately until there's treatment, vaccination or both. this is the world that we live in. >> the "cbs overnight news" will be right back.

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president trump marked memorial day at arlington national cemetery where he laid a wreath at the tomb of the unknown. other celebrations were held in washington and across the country. chip reid spent the day at the vietnam veteran's memorial. >> reporter: the granite wall and the names etched in it elicit a wide range of responses. some stand in silence. others pray. or offer a final salute. >> all right, david, welcome home. >> reporter: many feel compelled to leave offerings of love or gratitude or remembrance. a pair of boots. photographs, letters, even a last cigarette. each evening, national park service rangers collect the items and send them here, a massive warehouse in maryland,

filled to the rafters with objects left since 1982. ranger janet fulthurst catalogs them and keeps them in pristine condition. >> we have a guess, 400,000. >> reporter: 400,000. >> we never fully know until we have everything cataloged, which we don't have yet. >> reporter: which could take a very long time. >> yeah. >> reporter: they range from works of art to dog tags to a motorcycle. this harley was left by the wisconsin chapter of rolling thunder, a vietnam advocacy group to remember the 37 wisconsin vietnam veterans missing in action. each item is treated with reverence, but she says some are harder than others. >> this is a letter from somebody who was engaged to somebody who went to vietnam and he passed away. >> reporter: pajamjames bosley t come home. his fiance had a charm bracelet,

dear jim, you are still the chopper pilot, oh, so handsome. the ring and bracelet symbolize our youth and what might have been. >> i really identify with the lady who wrote it, just imagining my fiance and now my husband going and not being able to fill all of our dreams that we had for our future. it does have a punch, a lot. >> we want to have that visceral representation. >> reporter: jason obaboem is a curator. he wants an educational center to be built near the wall. >> what we have here is a letter. >> reporter: soon after the wall was built, this baby sweater was left by the wife of donald detmer. >> i wanted to bring you a teddy bear. instead, brought your first sweater. you are always in my heart, how i love you.

>> reporter: that's typical of the things you find here. >> they are just packed with that raw emotion. >> reporter: other items, like this care package are haunting reminders of families suffering unbearable loss. >> this care package arrived in country just about the time that specialist force stuart was killed in action. and unfortunately, it was simply stamped with this date, kia. >> reporter: killed in action. >> killed in action. and that's what they saw. >> reporter: years later his family left the package at the wall. >> says stuart, mom and dad want you to have these cookies and kool-aid. >> reporter: some items left behind reflect the deep longing for closure. >> delta 71, your face haunts me, and the name is gone. >> reporter: so this photo was left by someone who knew him by

how he looks but didn't know which name was his on the wall. >> couldn't identify him, couldn't take a name rubbing. in a way, couldn't complete that experience, and i think for us that's really the mission. it's to connect the faces to the names. >> reporter: boem hopes putting the objects on display along with photos of the fallen will help the families and the nation to heal. >> it will give visitors to the education center and visitors to the wall a bit more depth to that experience, to not just read the names but to see these faces and to understand that these were real people, real human beings who had lives who were cut short. >> reporter: they're still raising money for the vietnam war education center, but the plan is to build it across the road and underground, so it won't interfere with the visual experience of visiting the wall. and in addition to the thousands of objects that will be on display, they also h [hissing]

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no yellow stains on white clothes. no white marks on black clothes. new degree ultraclear black + white. it won't let you down. because your carpet there's resolve carpet care. it lifts more dirt and pet hair versus vacuuming alone. resolve carpet care with five times benefits kevin hart is on top of the world. the highest-paid comedian in the country. hart made more money last year than even jerry seinfeld who's still raking it in from his legendary sitcom that went off the air 20 years ago. so what's so funny about kevin? tracy smith has a look. >> yeah!

yeah! >> reporter: you could call kevin hart a comic, but he's more like a comedy rock star. >> we like to have a good time tonight. >> reporter: according to forbes, the 37-year-old entertainer was the highest-paid kmied yap on the planet, the runner, jerry seinfeld. >> you need an edge to succeed. my kids are growing up different. my son definitely doesn't have it. dad! wi-fi's down! >> reporter: and he built this comedic empire not so much by telling jokes but by talking openly about things people usually try to hide, like his fear of the dark. >> i grab my robe. i start scared walking toward the hallway. scared walking is when you

walko walkin', but you leanin' backwards just in case [ bleep ] do you know, you get [ bleep ] somebody there real quick. >> reporter: and then there are the embarrassing families about h -- stories about his family, like the time his drug-addicted dad showed up at a spelling bee. >> out of nowhere i heard, all right, all right, all right! yeah! >> reporter: does it do something for your soul to share that with everybody? those deep, personal things? >> comedy does come from pain. like it comes from pain. i could tell you some things right now that at first you'll go oh, my god. but then you'll laugh at. >> my dad was on drugs. i have no problem with being honest. it's the truth. >> reporter: and if pain really is the true source of comedy, he has a deep-well from which to draw. kevin darnell hart was born in philadelphia in 1979, the

younger of two boys. dad was in and out of jail. and kevin says, a role model for whatnot what not to do. >> if he hadn't made his mistakes live and in person i would probably be going down that same road in an experimental manner. >> reporter: you really think so? >> the only reason i don't do drugs is i saw what drugs do. i witnessed it first hand. >> reporter: they lived in a tiny apartment on the city's north side. and mom did her best to make it a home. you and your brother slept in the hallway? >> yeah. i would be shocked if it was 500 square feet maybe. small. >> reporter: for three people. >> yeah. >> reporter: did it feel small to you? >> no. it didn't feel small until i went over to one of my friend's houses who were doing well. i saw grass. you got grass outside your house? i don't know how you did that, that's crazy. y'all got to play in that grass?

this ain't the school's? >> reporter: growing up in one of the toughest neighborhoods, he used comedy as armor. >> nobody wants to fight the funny guy. nobody wants to mess with the funny guy. everybody wants to be around the funny guy. that's what i was. >> reporter: girls want to date the funny guy? >> not really, not really. no, not really. not even going to lie to you. this would have been a perfect place to put that lie. this would have been a perfect place to put that lie. yes, women were all over -- no. not the case at all. i didn't know how to shut the funny off. that was my problem when i was younger. >> i don't want nobody taking some of this stuff serious. i don't want nobody coming up after the show talkon aboin' ab who's the funny one now. >> reporter: when he told his mother he wanted to try stand-up full time she agreed to pay his rent for a year on the condition he read his bible. >> time kept going, and like,

i'm getting calls. kevin, where's the rent. and one night after, it may have been a month, maybe, a month of back and forth with me and my mom, i opened the bible. and then a bunch of rent checks fell out. she had them dated throughout the year. >> reporter: did she get to see your success? >> no. >> reporter: nancy hart died in 2007 and kevin somehow managed to find humor in that, too. >> like i said, my mom died from cancer. everybody knows this. except my uncle richie jr. funeral's over. it's an emotional time. i'm talkin'. my uncle comes up. i want to let you know, whoever did this is going to die tonight. >> reporter: do you think about, gosh, it would be nice for her

to see me now? >> no, because she does. you know. i got an amazing angel. you don't get here by yourself. i'm not over religious at all. but i'm religious enough to believe -- >> reporter: she's there? >> 100%. >> all right, look. keep reminding yourself that weddings are for the women. you're not supposed to enjoy yourself, doug. if you were, there would be big screen tvs. >> reporter: kevin hart has made more than two dozen movies, many box office hits like the ride-along series. >> i'm not the little man, you are. >> hey, don't start something if you don't want to finish it. >> what, you're about 3'10? >> reporter: he has a growing family, one on the way with his new bride. as hard as he works, he plays

stupid. like getting arrested in 2013 for drunk driving. do you think that was a big wakeup call, the dui, like i'm not going to play stupid any senator. >> wh-- anymore? >> i don't drink and drive. >> reporter: now he gets around l.a. in a rolling command center, usually working the phone. he talks about moving away from the buddy films he's known for. in fact, he just wrapped a more dramatic role with nicole kidman and bryan cranston, but this is a guy who knows where his heart is. >> i'm never walking away from comedy, never. >> hey, man, i've got a bottle of water. you can tell he drinks way to h much coffee, because he has too much energy. >> i love the fact that i have a craft that i can perfect as long as i want to. and the beauty of stand-up

comedy is, everybody wants,,,,,,

it's graduation time for the class of 2017, and some famous people are taking to the stage to offer advice. here's some of the highlights. >> none of us can make it alone. none of us. not even the guy that is talking to you right now. the greatest bodybuilder of all times. not even me that has been the terminator and went back in time to save the human race. ♪ >> i'm here as a cautionary tale. i'm the world's greatest advise i adviseer, not because i'm smart, but because i've screwed up every way possible. >> and when something seems designed to set you back, make it the thing that makes you

strong. and the quality of your life will be based on the quality of your relationships. >> as you leave here, go out there! get in the way! get in trouble! good trouble! necessary trouble! and make some noise. >> it's really good to be idealistic. but be prepared to be misunderstood. anyone working on a big vision is going to get called crazy, even if you end up right. >> you can't let them get you down. you can't let the critics and the nay sayers get in the way of your dreams. >> and i will say this. you're nothing if you're not the truth. so i have made, i've made a

living. i've made a living, i've made a life. made a fortune, really, fantastic. [ laughter ] >> everyone advises the commencement speaker to say the one thing that the students will remember 40 years from now, whether you're in french quarter or the oval office, no good can ever come from tweeting at 3:00 a.m. ♪ and i ♪ will always ♪ love you ♪ will always love you ♪ class of 2017 >> and that's the overnight news for this tuesday. for some of you, the news continues. for others, check back a little later for the morning news and of course cbs this morning.

from the broadcast center in new york city, i'm michelle miller. captioning funded by cbs it's tuesday, may 30th, 2017. this is the "cbs morning news." there was a threat made from representative rinaldi to put a bullet in one of my colleague's head. >> the fight over immigration takes a turn after a state senator says he caused i.c.e. on protesters. >> they were loud and they were protesting. two men are dead for trying to defend women against extremists. >> clearly what happen on that train was an act of terrorism.