welcome to "world news tonight." breaking news. hillary clinton's diagnosis. new video showing her wobbling, then appearing to fall. the campaign saying she was overcome by the heat, rebounding about two hours later. but now, word she's also battling pneumonia. tonight, clinton's health and the political fallout. remembering 9/11. the memorials in new york, washington, and pennsylvania. plus, the new heroes emerging 15 years later. deck collapse. two balconies full of people crashing into one another, then into a deck below. dozens of college students trapped. what happened? new warning. what you could hear when you board a plane about the

and, roughing the ref? >> i've never seen anything like that before in my life. >> the college player caught on video, police say, punching a referee in the face. now facing a felony charge. tonight, his side of the story. good evening. thanks for joining us on this sunday. i'm tom llamas.we begin with ths on hillary clinton's health. we're now learning she's been diagnosed with knpneumonia. the issue coming to light this morning at a 9/11 memorial event in new york. clinton leaving the ceremony. then this video, appearing to fall. her staff taking her to a van and then to her daughter's department. the campaign saying she was overheated. then two hours emerging, saying she's much better. but a short time ago, a statement from her doctor saying clinton had been diagnosed with

but let's start with cecilia vega with the fast-moving developments. >> reporter: tonight, that video showing hillary clinton leaving new york's 9/11 memorial early. clinton seen stumbling, losing her footing, aides and secret service agents surround her. hold her up, and leader to a waiting van. they drive her to her daughter's department. but now, her doctor saying she was diagnosed with pneumonia on friday. she was put advised to rest and modify her schedule. at that ceremony, clinton became overheated and dehydrated. >> how are you feeling? >> feeling great, feeling great. >> reporter: two hours after that episode at the memorial, outside daughter chelsea's home, clinton greeted a young girl and avoided questions about exactly what happened. >> what happened? >> it's a beautiful day in new york. >> rorter: clinton wearing those same sunglasses during the morning ceremony.

the entire service. instead, she stayed for about an hour. and then that episode. at chelsea's apartment, aides say clinton played with her grandchildren. and tonight, the 68-year-old democratic nominee is back home in chappaqua. this is not clinton's first health scare. in 2012, she fainted at home and hit her head, suffering a concussion. at the time, her aides and state department staffers downpled th. it turns out, clinton had double vision and wore special glasses. it took her six months to make a full recovery. as for a labor day coughing fit, clinton blaming it on allergies. but her doctor saying an exam because of that led to a pneumonia diagnosis.

trump turning clinton's health into an attack line. >> we can be nice and politically correct, we don't >> reporter: and clinton lks. brushing off those attacks. >> i'm not concerned about the conspiracy theories. there are so many of them, i've lost track of them. >> and cecilia, so many questions still about clinton's health. but her campaign has not released her medical records. in light of today, will they? been tight-lipped about so much today. they've not said yet whether they will release her medical records. donald trump has not released his yet either. clinton had a big tp scheduled for tomorrow, but they have not released whether it is going to happen. >> thank you. and dr. richard besser is here. what can we learn about the first video of hillary clinton leaving the 9/11 memorial and

>> well, you see her being led into the van, she doesn't appear to be able to walk on her own. that could be caused by many things. but two hours later, she was able to greet people. >> hillary clinton is 68. how serious is pneumonia for someone her age? >> pneumonia can be very serious. some are very serious, some are mild. clearly, it's not enough to keep >> thank you.he incident this morning wasn't her first stumble this weekend. she was already on defense after referring to half of trump's supporters as a basket of deplorables. our latest poll shows the race is tightening, 46% to 48%, against donald trump. but that's within the margin of error. what will the political damage be? >> reporter: we're in a very close race. nationally, and all the key

it's a good news/bad news situation for hillary clinton. the good news, the basket of deplorables thing is in the rear view mirror. and the bad news, it feeds two storyline about her health, and secondly, about her transparency, is she open? the best way to affect to be transparent. we've seen two candidates not be very transparent over the course of this race. >> matt, thank you. and hillary clinton was at the memorial for the 9/11 victims at the site where the twin towers once stood. marking the event with flowers, flags, and the reading of nearly 3,000 names. president obama spoke at the ceremony at the pentagon. but today touched american everywhere, from virginia to kansas to n.afgh

1 world trade tonight. >> reporter: today at ground zero, one toll of the bell, and silence. standing still for that moment 15 years ago when the first plane struck the north tower. then, the endless list of names. nearly 3,000 names. >> 15 years may seem like a long time. but for the families who lost a piece of their heart that day, i imagine it can seem like just yesterday. >> reporter: president obama at the pentagon. >> perhaps it's the memory of a last kiss given to a spouse, or the lost good-bye to a mother or father. >> reporter: the last words fiona havlisch has from her husband, a voice mail from the 101st floor of the south tower. >> he said, i'm trying to get

as soon as i get out, i'll call you on your cell. bye. >> reporter: you were probably just a baby, right? the family found a way to move on. but flew back here from their new home in colorado, determined to be here. >> donald g. havlisch jr. >> reporter:a day of remembrance, but also a day of resolve. >> it is. and it can also be a day of forgiveness. it can be a day of forgiveness. >> reporter: they are two of the thousands of people whose lives changed that day. and the restid how our world would change. tom?consequences, still >> david, thank you. this 9/11 anniversary also happens to be the first sunday of the nfl season. 14 games, each opening with a

but a few players like marcus peters stood with his team and also raised a fist in protest. and we move on to the release of the gunman who tried to assassinate president reagan in 1981. john hinckley jr., a free man tonight, with conditions. here's devin dwyer. >> reporter: tonight, john hinckley jr. seen here outside his mother's virginia home. free 35 years after trying to assassinate president reagan. the horror from 1981 is on the minds gated community where hinckley will live. >> that person has always been a risk to society. he was a risk early. he's a risk now. >> reporter: in recent years he's been given unsupervised releases. in july, a federal judge ruled hinckley is no longer a danger to himself or others. >> because mr. hinckley has shown the court that he can obey by the rules and regulations set out by the judge, it's time to try and see how he does on his

>> reporter: those rules include a ban on using social media and contacting any of his victims or their families. the court also forbidding hinckley from googling himself or researching weapons or porn. he also must continue therapy and be tracked by the gps on his cell phone. prosecutors insist hinckley remains dangerous, claiming on one occasion, he pretended to go to a movie but actually went to a bookstore to stare at books regarding presidential assassinations. if he violates the terms of his release, he could be sent back to the hospita tom? now, an update on the exploding cell phones. we're learning more about that recall of samsung galaxy note 7s. and there's a special warning for those planning to bring the phones on to airplanes. here's gloria riviera. >> reporter: tonight, the exploding cell phone battery that may have sparked this car fire, now triggering a new preflight warning across america. >> samsung galaxy note 7 phones are not to be charged or powered

several domestic carriers hearing the similar messages about that galaxy note 7, the instructions coming straight from the faa. >> it's a little shocking and a little nerve-wracking, and now i'm also thinking about it when i get on my plane. >> reporter: samsung says so far there have been at least 35 reports of batteries exploding due to a faulty lithium ion battery. dangerous on the ground, and, as tests show, a nightmare in the sky. >> if one phone gets trapped in a seat, gets crushed, on fire, now the whole seat is on fire. and what you may or may not have is the ability to fight that fire. not issuing a global recall, instead urging customers to exchange the device. joni barwick says hers exploded on her nightstand, filling her home with smoke. >> the smoke was unbearable, black, thick smoke. >> reporter: she knew about the issue, but -- >> we were told to wait for the replacement. >> reporter: the government is urging owners not to turn on their phones or even to charge them. when it comes to enforcing that

say it would be up to passengers under the honor system to comply. tom? >> thank you. from connecticut, two crowded balconies collapsing. more than two dozen students treated for injuries. as eva pilgrim reports, it's just the latest of a number of incidents like it in which students were hurt. >> reporter: chaos at an off-campus house party in dozens injured when three decks packed with people collapsed. >> we have three balconies that collapsed. and people are trapped underneath. >> reporter: the third-story deck crashing down just after 11:00 p.m., in the middle of the crowded party, landing on the porch below. then all collapsed onto the first floor. dozens trapped. >> we were getting reports of people scattered, and there was just debris on top of people. >> reporter: most, students at nearby trinity college. the college owning, but not managing, the 91-year-old house. >> the third floor, you see the floor was very rotted and old

and then you get 50 or 60 kids out there. >> reporter: we've seen this destructive combination before. last year, this roof collapsed during this st. patrick's day college party in california. and six students were killed when this balcony collapsed from the fourth floor of an apartment building. in all, as many as 30 people taken to area hospitals with minor injuries. officials saying it is a miracle no one was killed in this accident. trinity college confirming they not sure when it was last inspected. tom? >> eva, thank you. next to a new episode to a character who seems to be out of the movie "catch me if you can." tonight, malachi love-robinson

has been placed under arrest for allegedly trying to purchase a luxury car with fraudulent documents. here's matt gutman. >> reporter: tonight, the teen known as "dr. love" is back behind bars. 19-year-old malachi love-robinson was arrested in virginia on friday after allegedly attempting to purchase a luxury car using false documents. the teen made headlines after he was accused of illegally posing as a doctor. >> this is the new birth new life medical center. >> reporter: he was arrested in february after police gave a medical exam to an undercover officer. he's now awaiting trial after pleading not guilty to those charges. he sat down with abc news shortly after being released from jail. >> is this all a misunderstanding? >> reporter: have you had training? >> i have. i have shadowed many doctors. >> reporter: you're saying your training comprises shadowing other doctors, real doctors? that's your training in medicine? >> your training comprises a lot of things. >> reporter: when he allegedly

in stafford, virginia, on friday, his application raised several red flags. >> there was a lot of things he was saying and doing that didn't add up. >> reporter: and when employees performed an online search of love-robinson, they found his previous arres love-robinson was arrested at the dealership. tonight, he's being held on new charges of fraud, this time with no bond. matt gutman, abc news, los angeles. >> we thank matt for that report. still much me "world news tonight" this sunday. flags on the field. when a player appears to clock the ref. the controversial moment all caught on camera. what the player is telling us. and the surprising outcome to this moment. three armed suspects, guns drawn. you won't believe what happens next. [ crowd noise ]

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back now with the drama p playing out on a college football field between player and a referee. the player arrested, accused of assault. police saying he punched a referee in the face. the skirmish caught on camera. here's adrienne bankert. >> reporter: tonight, this referee knockout, caught on camera. >> the ref just got punched in the face by a play? >> reporter: mt. san antonio college lineman bernard schirmer as he has words with the other team. schirmer, number 52, pushing back. then the hit. e the 6'5", 270-pound lineman, immediately ejected from the game, and later arrested. now facing a felony battery charge. >> i really didn't mean to do that to the ref. i just didn't see him. >> reporter: his father said he was hitting himself in the head to calm down. accidentally striking the ref. trainers rushing to help that official. he never returned to the game. this, just the latest case of a ref roughed up on the field.

referee. he's down. another player dives into him, head first. >> there are 23 states around the country that have decided to create laws that make it a criminal action to assault a referee. >> reporter: tom, tonight, the college releasing a statement saying they fully agree with the the family that this was an accident. though an investigation is on going. tom? >> thank you. when we come back, the familiar landmark up in smoke. the blaze destroying this covered bridge. and what exactly is happening to this u.s. warship out at sea? and why the navy is saying tonight, it's actually a good thing. stay with us. when my doctor told me that i may reach my blood sugar and a1c goals by activating what's within me with once-weekly trulicity.

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the worker then chases the trio. the hunt is on for those masked men. and a serious fire unr investigation. police in vermont looking for people that may have set a fire on this covered bridge. and this incredible video from the u.s. navy tonight. officials say it shows how the uss jackson can take the heat. the $360 million ship reportedly performing well during three underwater explosions, sustaining minimal damage. and still ahead toni promises made. promises kept. one firefighter's life of service in the 15 years since

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finally tonight, on this important anniversary, the heroes among us. the firefighter with a very special mission this past 15 years. on 9/11, new york city firefighter jojo esposito lost so much. when the towers collapsed, his brother, his cousin, and so many in his firehouse died. >> we lost 11 men. that's almost half the company. >> reporter: jojo, one of those tasked to deliver the grim news to the families affected. >> it wasn't easy. there were times i felt like breaking down, but i knew i had to be strong for my family and their families too. >> reporter: but jojo made a promise. those families would see him again. >> this is me with lisa poazza. she lost her husband in rescue 5 too. >> reporter: he became a different type of hero. >> he's always been for there

it's 15 years later, he's still there for us. >> it's unbelievable what he did for us, you know? taking care of his own family and all these other families at the same time was just something special. >> it's like having another dad. jojo is there whenever i need him. >> reporter: jojo says the surviving members of rescue 5 in staten island all came together, and there are still no easy days. >> 15 years is just a number to some people. 15 years to us is like we just said, all those missed parties and anniversaries and stuff like that. you can't get that back. >> reporter: as a firefighter, you're trained to put out fires and rescue people. trning for the role you do now? >> there's no training for life. you just got to deal with, in the best way you can as it comes across. and hopefully, you're able to do it the right way. >> our thanks to jojo and the other first responders. "gma" first thing in the morning. david will be right back here tomorrow night. we thank you for watching. i'm tom llamas in new york.

we know you're gonna love it. [ meows ] [ laughter ] man: ah, ah, ah! aah! [ cheers and applause ] welcome to... and now here he is, the host of our show, alfonso ribeiro! hey! [ cheers and applause ]