welcome to "world news tonight." breaking news, tragedy at a major water park. details coming in at this hour. donald trump facing dangerous poll numbers. the republican nominee losing ground. the huge group of voters lining up for hillary clinton. but now trump unleashing a new attack. >> honestly, i don't think she's all there. crash course. the frightening wipeout. the cyclist crashing in the middle of a race, rushed to the hospital. and the french gymnast breaking his leg on the mat, then suffering another fall when paramedics drop the stretcher. midair takedown. the crowded cross-country plane forced to divert. a passenger accused of attacking a flight attendant, taken away

rise? the consumer alert tonight. phone hijacking. thieves taking over your cell phone, creating a fake i.d., and running up huge bills. good evening. thanks for joining us on this sunday. i'm tom llamas. we begin with breaking news. tragedy at a major american water park. word of a child world's tallest water slide. the park now closed through at least tomorrow. the investigation just under way. marci gonzalez with the latest. >> reporter: that tragic accident happening this afternoon. authorities confirming a 12-year-old was killed. and we're now hearing from park officials. >> we are saddened to share that a young boyed died this afternoon.

world's largest water slide, taller than the statue of liberty. features a 168-foot drop. the park is now closed, and will remain closed tomorrow, pending a full investigation. park officials say the ride was inspected, and we're told the boy's family was at the park with him at the time of the accident. park officials still aren't saying how this tom? >> thank you. now to the race for president. donald trump, new polls showing him losing ground to hillary clinton after a series of damaging headlines. trump, trying to claw back into the race. launching a new attack using clinton's words against her. this abc news/"washington post" poll showing clinton extending her lead by eight points.

devin dwyer, on the campaign trail tonight. >> reporter: down in the polls tonight, donald trump's trying a new weapon -- hillary clinton's own words. >> unstable hillary clinton. and you saw that, did you saw that where she basically short-circuited? >> reporter: trump pouncing on clinton's answer to a question about her e-mails. >> i may have short-circuited. and for that i will try to clarify. >> reporter: mocking the line on social media. >> so i may have short-circuited. [ zapping noise ] >> reporter: and on the stump. >> the people of this country don't want somebody that's going to short-circuit up here. >> reporter: going so far as to suggest his rival is losing her mind. >> this stuff is so amazing. it amazes me actually. honestly, i don't think she's all there. >> reporter: these latest attacks coming as clinton makes gains. our new poll showing her support from women at its highest level yet. and fewer voters viewing her

the poll reveals serious concerns about trump. two-thirds say he has the wrong temperament. almost as many say he's unqualified and untrustworthy. on "this week," former acting cia director mike morrell said trump has already been manipulated by the russian president. vladimir putin has called trump "talented." >> from mr. trump's perspective, right, he simply heard putin compliment him. he then responded by complimenting him. he never thought that he might be being played. >> reporter: a battle over mental qualifications for the presidency far from settled, as clinton tonight warns supporters about trump by e-mail. "he may still beat me." trump tonight quickly changing strategy to try to regain momentum. first, reversing himself to endorse house speaker paul ryan and senators john mccain and kelly ayotte. and this week, he plans to shift his focus to the economy. tom? >> devin, thank you. we turn to the olympic drama in rio.

heels. rushed to the hospital. tonight, all eyes will be on michael phelps, competing in his fifth olympics. and team usa, adding to its collection. and matt gutman is in rio for us tonight. >> reporter: tonight, that dutch cyclist recovering in a hospital. anniemike van vleuten skidding into that turn earlier, wobbling, then launching over the handlebars into a concrete gutter. brazilian fans, apparently contagious. spreading from the soccer pitch -- >> zika! >> reporter: -- to the pair of americans at the beach volleyball stadium. >> zika! >> reporter: rio's woes not all manmade. gale force winds battering olympic venues, forcing the suspension of all rowing events today. and tonight, the paraolympic

>> i believe the russian government has failed the russian paraathletes. >> reporter: and amidst the katie ledecky notching an olympic record in a 400-meter qualifying race. michael phelps is expected to make his olympic debut in the pool for the 4 by 100-meter freestyle relay, in his fifth olympic games. earlier, we spoke with ibtihaj muhammad, the first american to

long sleeves, pants. and with fencing, it's this unique opportunity to be covered as an athlete. >> reporter: she's become so recognizable that she came in second to michael fphelps in th voting forrica's flag bearer at the olympics. >> matt, thanks so much. the family of oscar pistorius fighting against headlines he tried to commit suicide. miss hospital after being found hurt in his prison cell. he has injuries to his wrists. his brother claims he slipped in his cell. he's serving six years for killing his girlfriend, reeva steenkamp. we move on to the midair

accused of attacking a crew member. here's eva pilgrim. >> reporter: this man in handcuffs after terrifying moments on this packed cross-country flight. >> i jumped on the guy. i restrained him. basically got his hands behind his back. >> reporter: 64-year-old jose de dios ucros taken down by a fellow passenger after witnesses say he attacked a flight attendant and tried to open the cabin door. the spirit flight headed from l.a. to florida, forced to make an emergency landing in phoenix. moments later, police board the plane and arrest ucros, who they say appeared to be impaired. ucros, who is facing assault charges, is just the latest passenger arrested on a flight. >> sit down. enough! you don't put your hands on my flight attendant. >> reporter: an american airlines pilot taking down an unruly passenger in charlotte on monday after this -- the man slams into a flight attendant. several passengers fight to subdue the man in the red shirt, finally restraining him with

and in june, two fighter jets escorting a delta flight to the ground after a passenger made threats against the plane. >> he was walking up and down the aisle, anxious, seemed very uncomfortable. wouldn't still down. >> reporter: the flight attendant association tells abc news they are seeing more and more incidents of unruly passengers. the leading cause -- alcohol. tom? >> eva, thank you. overseas, isis claiming responsibility for a terror attack in belgium. two policewomen were injured when they were attacked by a man armed with a machete saturday. isis claiming him as a soldier. the attacker was killed by a third officer. the prime minister today increasing security. and police announcing a terror arrest in france. the suspect, cleared of being the getaway driver in the "charlie hebdo" attack, said to have tried to join isis in syria.

france's terror watch list. he was found on the turkish border, and is waiting for extradition in france. and at home, the mystery murder of a jogger in new york. the family with a chilling message for the attacker. she was attacked when running near her home. her mother warning the attacker, you will pay. gloria riviera on the manhunt for the killer. >> i guarantee, you will forever. >> reporter: tonight, a raw, emotional vow to find the killer. >> the whole entire world knows what a pathetic, puny, weak piece of filth that you are. >> reporter: police hopeful that dna evidence will lead to the person who attacked karina vetrano as she jogged alone tuesday in broad daylight, just blocks from her home. >> this woman put up a ferocious

she was beaten quite severely. >> reporter: vetrano's father, finding her body. the heartbroken new york city firefighter, thanking investigators as they relentlessly search for evidence and witnesses that could lead to the killer. >> justice will be served. >> reporter: police say they don't believe vetrano knew her killer. there is now a $10,000 reward for information leading to an arrest. tom? >> gloria, thank you. now to the extreme weather moving in on the south. heavy rain, flooded streets strong winds in tampa today. turning worse as we head into the week. and tropical storm javier closing in on land. and let's get straight to rob marciano. >> it's going to be a multiday event. four or five days of rain, could see a foot in some spots. you can see the dense coverage on the radar, and flood watches posted for the big bend area, including cedar key.

in the next 24 to 48 hours. then along the florida panhandle, and through friday, 8 to 12 inches of additional rainfall. tropical storm javier, the moisture for this will get into the desert southwest. the southwest and southeast corners of this country under the gun this week. >> rob, thanks so much. tonight, a major headline from one of baseball's most polarizing players. yankee slugger tearfully announcing his final days with the team. the struggling star will play his final game in the bronx on friday. adrienne bankert on the player fans either loved, or loved to hate. >> reporter: tonight alex rodriguez, counting down the days. >> i love this game and i love this team. and today i am saying good-bye to both. >> reporter: the new york yankees releasing the

reflecting on his career. >> at 18, i just wanted to make the team. >> reporter: plagued with troubles his last several seasons. sus pended in 2014 for performance enhancing drugs. this year, striking out more often than scoring. a-rod himself admitting the struggle. >> it's been painful and embarrassing to sit on the bench. shocking to his fans. >> i grew up watching him. i kind of feel like he's been forced out. but the powers that be made that decision. >> reporter: but it's not a farewell to the franchise. a-rod will remain as a special advisor to the team through december of 2017. and the yankees still on the hook for his salary next year, $21 million. >> he hasn't been a really productive member of this organization or professional baseball for a long time. >> reporter: and tom, love him or hate him, he's still a major crowd draw. bleacher seats for a-rod's last

more than 400% face value. tom? >> again, those are the bleacher seats. thanks so much. now to an unusual beach rescue off of cape cod to rescue a pod of dolphins stuck on the sand. a rescue team racing against time to save ten beached dolphins on saturday. they were tagged before being released into deeper waters. still ahead, a powerful we have the new details. and thieves getting new iphones and charging them to your account. how they're doing it, and how you can protect yourself. plus, airborne. the shark refusing to be reeled in. we'll show you how this fish

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now, it appears some have figured out a way to hijack your cell phone. buy expensive new phones with your account, and leave you with the bill. but there's a way to protect yourself. here's lauren lyster. >> reporter: tonight, a growing threat right in the palm of your hand. identity thieves hijacking your cell phone. >> my family let me know that their phones weren't working. >> reporter: lindsey and mark heard immediately calling their carrier. discovering criminals crafted a fake i.d., fooled store clerks and took over their accounts. buying teerand new iphones, t . >> i think what happened is, they got ahold of my online account because they said they had gone in and checked a couple different times if i had upgrades available. >> reporter: this kind of cell phone hijacking is on the rise. over 2,600 cases in january of this year alone. more than double that three years ago. why is this particular fraud growing? >> you don't really need to

walk into a store and either change a service or do an upgrade. >> reporter: and if crooks get access to other personal information like your credit card, the damage can go beyond your phone. >> i saw close to $11,000 of charges that i didn't make. they called my cell phone to see if it's actually a fraudulent charge or not and the thief actually has my number. he can say, sure, yeah. >> reporter: to protect yourself, experts say call your cell phone carrier and set up a special passcode or pin number. that serves as an extra layer of >> lauren, thank you. coming up, the new hall-of-famer. the quarterback who never gave up, revealing why he played so hard. the confession, bringing him to tears. and no one puts baby in the corner. the return of "dirty dancing." the big question, will jennifer grey make an appearance?

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that powerful blast leveled the two-story home on thursday. seven people were injured. investigators believe it was a propane gas leak connected to the dryer in the basement. but it's not clear what ignited the gas. one woman remains in critical condition. and now the fisherman treated arshse this mako shark refusing to be reeled i leaping into the air, higher and higher. eventually he was able to snap the line. that shark, not giving up. now to former green bay packer, brett favre, now officially a part of the pro football hall of fame. praising his father's tough love. >> i spent the rest of my career trying to redeem himself and make him proud. i hope i succeeded.

tony dungy and the late, great quarterback ken stabler of the oakland raiders. and this gymnast that broke his leg in rio, he was being rushed to the hall, olympic staffers dropped the stretcher he was on. and, what's old is new again. the '80s classic "dirty dancing" is makin but don't expect to see jennifer grey in the abc remake. she says she was offered a role, but she turned it down. the role she originated, baby, will be played by abigail breslin. still to come, why this woman chose this man to give her away. he's not her father.

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side? >> on your right, you're going to see a parking lot. >> reporter: a person she would not even meet until the day before the wedding. when she had to talk him through the route to the church. ten years ago, arthur thomas was in urgent need of a new heart. and the heart they gave him was michael's jenny's dad's. jenny grew up, knowing a living part of her father was out there. >> we've been talking to him, and writing letters, and calling. >> reporter: but it was all long-distance. until -- >> she wrote me a letter, and said, if you're willing, would you walk me down the aisle? >> thank you so much for coming. >> are you kidding? >> reporter: and so, there we were. jenny closer to her dad's beating heart than she had been in years. so close, she reached out to feel that beat. and on this, her wedding day, that was possible. john donvan, abc news. >> an incredible moment.

these families are just some of "afv's" past $100,000 winners. tonight, one lucky family will join their illustrious ranks as they take home the $100,000 prize. find out on tonight's "afv." we know you're gonna love it. man: oh! oh! [ laughter ] young man: oh! [ laughter ] aah! [ thud ] [ laughter ] [ cheers and applause ]