welcome to "world news tonight." homecoming horror. a car plows into a group of parade watchers. four people dead, including a 2-year-old. the driver behind bars. tonight, what happened to her just before the crash. inside the raid. watch as commandos storm an isis compound, rescuing dozens of prisoners. a soldier's helmet cam taking us right into the daring mission. miracle at sea. fishermen pluck an 18-month-old baby from the middle of deep waters. the tiny refugee floating for hours. plus, the moment the baby's mother meets her son's saviors. texas slam. torrential rain and flash floods, washing out train tracks. triggering dozens of water rescues.

and, hacking your holidays? crooks intercepting packages right at your front door. is new technology helping thieves, just as the biggest online shopping season ever is about to begin? thanks for joining us on this sunday. i'm tom llamas. we begin with the deadly tragedy in oklahoma. always boasting their fall celebrations are the biggest in america. now, the saddest. thousands gathering to watch the homecoming parade, when a car slamming into them from behind. spectators going flying, four killed, including a 2-year-old. the car, a mangled mess, the lawn chairs abandoned. and tonight, a suspect is in custody. ryan owens with the latest on the victims, and why police say this happened. >> reporter: they never saw it coming.

grey car plowing into a crowd of homecoming parade goers saturday morning at oklahoma state university. >> we're gonna need a bunch of help. we got a car through a crowd up here. >> reporter: the casualty count is staggering. four dead, 47 injured. >> it hit people, just like thump, thump, thump. as people were flying. most of the people i saw were just laing on the ground in crumpled messes. >> reporter: police say this is the woman responsible for all of the carnage -- 25-year-old adacia chambers, arrested for suspicion of driving under the influence. tonight, she's being held on four manslaughter charges. the district attorney says investigators believe chambers was using drugs. coworkers say chambers was sent home early from her job at this local fast food restaurant just before the crash at 10:30 in the morning.

wife bonnie. 23-year-old nikita nakal, an mba student. and 2-year-old nash lucas. his father posting on facebook, miss you, buddy. one thing no one here is denying -- the acts of everyday heroism that saved lives. larry williams is a high school teacher who knows first aid and didn't hesitate to use it. >> you're supposed to be responsible if you have that type of training to go ahead and try and help out. >> reporter: chambers will be in court tomorrow. late this evening, her attorney saying in his opinion, his new tom? >> a horrible incident all the way around. flash flood watches in five states along the gulf coast. texas getting the worst of it. you see it there. rushing water on the streets of san antonio. the water coming up so quickly in houston, this car was caught. here's rob marciano.

>> reporter: tonight, texas under water. parts of the lone star state getting more than 20 inches of rain. this neighborhood in weslaco submerged. here. >> reporter: emergency crews hum-vees to help residents evacuate. driving is treacherous. out at this time. >> reporter: more than 70 rescues south of dallas, including this man and his dog floods even de-railing the cars on this freight train. many bayous here in houston near or over the top of their banks. low-lying roads and highways like this one shut down because of the high water. cars like those two back there getting swallowed by all this rain. in houston, this man searching for his submerged car, getting stuck when the water was just calf-deep. >> i just stood there and watched my car slowly disappear. >> reporter: trying to attach a chain so the tow truck could pull it out, ultimately giving up. outside houston, this funnel cloud. and two reported tornadoes. >> i looked out the window and all you saw was a whirlwind of trash.

roofs, toppling fences. and in galveston, winds gusting over 50 miles an hour, waves up to 10 feet high. causes this empty tanker to run aground. the rain has let up a little bit, but continues to come down. and winds, picking up with 69 miles an hour in louisiana. >> and on that point, what's next for the track? >> it's gaining strength. as far as the winds are concerned. it's going to move to the east slowly. it's a slow mover. the low is right around lake charles, louisiana. will scoot across the basin, and wind and flood advisories. that gives you an idea of the scope of the system. the timing of it, some of the heavier rains will be in eastern

by 7:00 p.m., we're looking for it to extend to the florida panhandle. the rains in new orleans, and pensacola could see five more inches of rainfall. quite a system, tom. >> true. thank you, rob. and some remnants of hurricane patricia feeding those rains. one of the most powerful hurricanes recorded in the western hemisphere. now, the cleanup begins. families trying to put their lives back together. here's matt gutman. >> reporter: hurricane patricia pounded mexico's coast. the rising pacific swamping towns. the winds contorting these palm trees, lopping off others. as the storm swept inland overnight friday, we traveled to the devastation zone, plowing through knee-high water. pretty treacherous driving. in the morning, an endless

the roads. they're climbing out and digging. the ocean swallowed this entire town. the water was over my head. still, the strongest storm ever recorded in the western hemisphere caused significantly less damage than anticipated. mexican authorities reported not a single fatality. sliding in right between the giant port city of manzanillo and the tourist mecca of puerto vallarta, category five winds extending only 15 miles across. plus, it zoomed across the landscape at 20 miles per hour, too fast to damage solidly built structures of cinder block and cement. but it triggered a massive exodus from resort cities like puerto vallarta -- 10,000 americans evacuated. on friday we found david and ellie lloyd sticking it out. and now? >> what a difference a day makes. >> reporter: matt gutman, abc news, puerto vallarta. tonight, an extraordinary look at a high-stakes commando

u.s. and kurdish troops and an air strike completely destroying a prison. here's abc's alex marquardt. >> reporter: amid heavy gunfire, the hostages stream out of the darkness. hands up, feet bare, clothes bloody. lit by the glow of a fire and the head lamps of their rescuers. this new video, shot on helmet camera, showing american delta forces along with kurdish fighters storming an isis prison in northern iraq. rescuing among 70 men that the pentagon says faced imminent execution. >> this was an opportunity in which the capabilities that we uniquely possess could have a material effect. >> reporter: they cleared room after room. the black isis flag hanging on the wall. american voices could be heard clearly as the hostages are patted down. all were saved, while around 20 isis fighters were killed.

master sergeant joshua wheeler. arecipient of 11 bronze stars and a father of four. the first american killed in combat against isis. >> this american did what i'm very proud that americans do in that situation. he ran to the sound of the guns. >> reporter: the pentagon denies this now means american forces are taking part in the combat in iraq. calling these circumstances unique, and saying there will be more strikes like this in the future. >> alex, thank you. and the chaos in that region starting a refugee drama. a little boy, a year and a half old, separated from his mother when their small ship capsized. but then, a miracle. mary bruce with the details. >> reporter: two turkish fishermen approach what they think is just a life vest, only to discover it's a baby floating. fearing the worst until they hear his tiny cry. the man desperately working to

revive him. patting him on his back. trying to shake out the water. this 18-month-old syrian boy miraculously surviving five hours in the water alone. separated from his mother after their boat capsized in the aegean sea. thousands of refugees have drowned making the same harrowing journey. this heart-wrenching photo waking the world to the crisis. the journey to europe especially hard on the youngest, as we saw in croatia. how about for the baby? any food, any water, formula? he says she has had nothing today. but little mohammed is one of the lucky ones. reuniting here with his rescuers. his mother thanking them with tears of gratitude. saying, you "gave him a new life." mary bruce, abc news, washington. >> an amazing story. we thank mary for that. back home to the

presidential race. the three remaining democrat candidates at a dinner in iowa. hillary clinton getting some star power, as donald trump tears into his competitor, dr. ben carson. david wright on the campaign trail from iowa tonight. >> reporter: in iowa this weekend, hillary clinton's campaign rolled out the big guns. katy perry and bill clinton, urging voters to break that glass ceiling once and for all. >> i'm tired of the stranglehold presidential spouse. them hear you roar. >> reporter: but as bernie sanders reminded her, she's lost it before. >> i think we're doing to prove the pundits wrong again. >> reporter: on the republican side, jeb bush sounded downright

dejected after firing 40% of his campaign staff. >> i have better things to do than listen to people demonize me. and me feeling compelled to demonize them. elect trump if you want that. >> bush has no money. he's cutting. he's meeting with mommy and daddy. >> reporter: trump now accused of demonizing ben carson's faith with a remark. >> seventh-day adventist, i don't know about. >> reporter: carson wants an apology. and on "this week," trump told george, fat chance. >> i said, i don't know about it. that's not an insult. >> reporter: 99 days until the iowa caucus. just three short months for the return here in iowa, ben carson seems to be making headway. the question is, will it be enough? tom? now from the political arena to the gridiron. and an all-too-familiar ritual,

attributed to a hit in the game. tonight, when the american academy of pediatrics wants on the sidelines. here's ron claiborne. >> reporter: in shock and sorrow, friends of 17-year-old andre smith gathered on a high school football field in chicago, embracing in grief, some holding jerseys with his number on it. >> andre was not only a teammate and a best friend, he was like a brother to me. he was a brother to me. >> reporter: an autopsy concluded the teenager died of blunt force trauma after a hit to his head during a game last thursday. he was the seventh high school football player to die this season. today, the american association of pediatricians issued a report on youth football that blames serious injuries on tackling -- especially the illegal hits that go uncalled in many games. >> we need to enforce the rules. we need to stop the head to head hits and make sure kids are being taught on proper tackling technique. >> reporter: the doctors also recommend skilled athletic trainers on the sidelines,

leagues as a safer alternative. about 12 high school and college football players die every year from football-related injuries. many more are injured, sometimes severely. this new report encourages students and their parents to consider the risks before deciding to play tackle football. the doctors behinds today's recommendations say it is unrealistic to expect kids not to play tackle football, but they stop short of calling for a ban on it. what they hope to do is help reduce the risks for those who choose to play. tom? >> ron, thank you. still ahead tonight, package thieves with a possible new game plan. this guy caught red-handed swiping packages. how police say he may have been able to track them down with just a smartphone. and later, a 60-foot shark? we may have the tooth to prove it. the big discovery that's making jaws look like a guppy.

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welcome back. with the holiday season approaching, and shipping about to surge, you may not be the only one tracking the package you ordered online. some thieves may have figured out a high-tech way to get to your delivery way before you do. here's kayna whitworth. >> reporter: it's your typical packages left on the porch by the ups driver. a u-haul van backing into the driveway. the driver, getting out and getting away with two packages. >> he picked the wrong house. >> reporter: tarzana homeowner rick deckman caught it all on his home surveillance system. police tracking the license plate from the u-haul, arresting a man and a woman. >> there were just piles and piles of just stuff -- boxes, mail. >> reporter: and the alleged thieves perhaps turning to technology. los angeles police saying the suspects were tracking ups trucks on a phone app and attempting to locate packages without a tracking number.

compromised. >> but the police are saying they found some evidence. or some type of searches. that means the will is there to crack that code. >> reporter: and as those porch pickups increase, police say to be more vigilant. $334 billion this year. deliveries for a time when you're home, or have them delivered to your office. >> kayna, thank you so much. when we come back, is there schools? president obama thinks so. why his new plan will likely make many students pretty happy. and later, the shocking admission from singer robin thicke.

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humongous shark called a megalodon. it was found on a north carolina beach. some perspective here -- it's six inches long. the average size of a great white's tooth, about three inches. this megalodon may have been a 60-foot beast. now to singer robin thicke. the unsealed tapes in his deposition for the "blurred lines" trial. >> i was high and drunk every time i did an interview last year. >> thicke responding to an interview in which he discussed singer marvin gaye, whose music he's accused of ripping off. he's currently appealing the jury's verdict against him and singer pharrell williams. still ahead, a heart-stopping moment in a high school gym. a student collapses and stops breathing. no time to spare. we'll tell you who jumped in to save his life, and why. like how you thought you were covered for all this... when you're really only covered for this. hot dog? or how you may think you're covered for this... but not for this...

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finally, sometimes timing is everything. at a high school in utah, faculty that had recently completed a cpr refresher course were put to the test when a student collapsed. this was no drill. and as the surveillance video you're about to see showed, they had just seconds to react. here's linzie janis. >> reporter: watch these middle schoolers jogging in gym class, nelson slows down, puts his hands on his hips, then collapses onto the floor. surveillance cameras rolling as the teacher checks his pulse and calls for help. >> he was trying to breathe at first. then there was a point where he stopped breathing altogether. >> reporter: vice principal eric price, who attended a cpr refresher course just days earlier, putting his knowledge into action. officer alternating applying

compressions. >> he had actually, essentially, died right there in our gym. he wasn't with us. >> he was gone. >> he was gone. >> reporter: 11 terrifying minutes later, paramedics arriving, rushing skyler to the hospital where doctors discovered a genetic heart defect, implanting a defibrillator in his chest. >> i'd like to say thank you very much, i'm grateful, and god bless you. >> reporter: skylar's heroes visiting him in the hospital. >> skylar looked at us as we were leaving and said, "thank you for saving my life." >> reporter: tonight, grateful they'd brushed up on their life saving skills. linzie janis, abc news, new york. >> so great they had that training. "gma" first thing in the morning. david muir will be right back here tomorrow night. i'm tom llamas in new york. have a great evening.

do you think when you are president you'll be paid as much as if you were a man-male... this is one of the jobs where they have to pay you the same. but there are so many examples where that doesn't happen. i'm going to do everything i can to make sure every woman in every job gets paid the same... ...as the men who are

doing that job. r