welcome to "world news." tonight, the race for president. and one republican candidate, taking heat. dr. ben carson, rising in the polls. now fiercely defendingis life story as donald trump laughs it up on stage. inside job? the chilling new information. intercepted isis chatter, indicating they had infiltrated egypt's airport. did they get a bomb onboard? collapse. the giant gash in the earth, hundreds of feet long. swallowing 14 cars in a parking lot. ambushed. the texas judge, gunned down in front of her home. police investigating if someone wanted her dead. secret sexting. the widespread scandal at one high school, and the sneaky apps that may be on your child's smart phone.

the 12-foot, 800-pound beast wandering behind a home depot, and the dental hygenist who jumped on the wild animal and took it down. good evening, thanks for joining us on this sunday. we begin with the race for the white house. the election exactly one year the heat after being challenged on his past. meanwhile, donald trump, having no problem playing comedian. mary bruce with the latest from the campaign trail. >> reporter: tonight, new scrutiny into ben carson's past intensifying, and he's pushing back. >> the burden of proof is not on me. to corroborate everything i've ever talked about. >> reporter: first, his campaign clarifying that he was never admitted, or even applied to

west point. after originally claiming he received a scholarship. and today, defending his account in his book about a test he took in yale. the "wall street journal" raising questions about whether he was named the most honest student in class. carson responding on facebook. posting this 1970 article from the school paper that he says backs up his story. though his account is more detailed. and the "wall street journal" looking at another story from high school, saying he shielded a group of white students during riots. >> anybody, going back decades, can be 100% accurate on anything, if you can show me that person, i will sit at their knee and learn. >> reporter: carson's chief rival, donald trump, pouncing on the accusations. >> it's a weird deal going on. >> reporter: back to business today, after some funny

donald being donald. >> they don't have my talent, money, and especially my good looks. but you know what, they're not bad. >> reporter: trump and carson will meet again in just two days on the next debate stage. and questions about carson's past will likely be raised. but his campaign says they're also helping him. saying they're raising $3.5 million in fresh donations from all of this scrutiny. tom? >> thank you. next, to the investigation passenger jet in egypt. the bomb theory strengthening tonight. new intelligence claiming that isis may have infiltrated that and the bodies of some of those buried this weekend, found with shrapnel. here's brian ross. >> reporter: aviation security officials tonight say there is here was likely an inside job. that isis recruited someone with access to the ramp at the sharm

el sheikh airport to plant a bomb on the russian jet. with investigators this weekend scrutinizing airport surveillance videos and employee records for a possible suspect. congressman adam schiff is one of eight members of congress to receive a classified briefing on the investigation. >> isis may have concluded that the best way to defeat airport defenses is not to through them but to go around them with the help of somebody inside. >> reporter: u.s. authorities tell abc news that electronic intercepts of isis, both before and after the crash, indicated that isis was in communication with someone at the sharm el sheikh airport. >> if this is a bomb by the affiliate of isis in the sinai, isis has now fully eclipsed al qaeda as the gravest terror threat in the world. >> reporter: as more of the 224 russian victims were buried this weekend in st. petersburg, officials said shrapnel wounds were discovered in several of the bodies, another indication that the plane was brought down by an explosive device. on saturday, egyptian officials said the cockpit voice recorder,

the cvr, captured a distinct but undetermined noise just before it stopped working. >> a noise was heard in the last seconds of the cvr recording. >> reporter: u.s. experts say it will be possible, and quickly to determine if that noise was a bomb, and if so, where it was placed. but that hasn't happened yet. as of tonight, senior u.s. officials say that fbi experts have not been asked to join the investigation on the ground. >> hopefully soon we'll know what the noise was. >> that's right. >> brian, thank you. back to the states, police in louisiana are investigating two of their own for the killing of a 6-year-old boy. tonight, the officers behind bars for pursuing an suv. a pursuit that ended in a hail of bullets. phillip mena with the latest on this deadly incident. >> reporter: two louisiana law

enforcement officers under arrest and facing charges of second degree murder and attempted second degree murder after an incident that left a 6-year-old son dead. than this badge that we wear on our uniform. tarnished. >> reporter: investigators interviewing witnesses, examining 911 recordings and body camera footage. >> it is the most disturbing >> reporter: trying to figure out what led the officers, who were moonlighting as city marshals, to fire their weapons at a vehicle driven by chris few. >> hi, jeremy. >> reporter: his son, first-grader jeremy mardis, a passenger, after a pursuit tuesday night. four law enforcement officers in all at the shooting scene. >> that was my little angel. he would just smile and bust out laughing, at the sky. it was almost like he's talking to god. >> reporter: megan dixon, few's fiance, says she and few left in separate vehicles after an argument at this pool hall earlier that evening.

a short time later, she says she saw police vehicles pursuing him. dozens of people leaving flowers and balloons at the intersection where the shooting occurred. both officers named in a criminal complaint that is still pending from earlier in the year. as for jeremy, his funeral is tom? >> a sad and disturbing story. phillip, thank you. now to what some are calling a high-profile hit. a judge, recovering tonight after being shot at her home. tonight, the troubling question. did any of the thousands of people that came through her court want her dead? here's ryan owens. >> reporter: she spent years putting criminals behind bars. tonight, police here in austin believe someone may want her dead.

and they have no shortage of potential suspects in the shooting of judge julie casirik. >> every year, she has at least 1,000 new defendants. you're sending people to prison and death row, not everyone is happy with that. >> reporter: police say she was shot when pulling into the driveway of her austin home friday night just after 10:00 p.m. >> gunshots, rapid succession, no pause. >> reporter: the "austin american statesman" reports, she was coming home from a high school football game with others in her suv. as she pulled up, a bag of trash or garbage can had been place in front of her gate. as she got out to move it, the judge was ambushed. >> we don't have a lot of >> reporter: the judge's colleagues are being warned to watch their backs. before she became a judge, she was a prosecutor here in austin. so, there may well be a long line of hardened criminals with a grudge against this judge.

tom? >> ryan, thank you. now to an extraordinary move by a college football team. dozens of players on the university of missouri team saying they will not play until the president of the university steps down. tonight, their coaches took this photo with them, protesting how the president has handled racial problems on campus. here's ron claiborne. >> reporter: weeks of racial tension on the university of missouri campus boiling over with roughly 30 african-american football players vowing to boycott the team, saying they won't participate unless the university's president is fired or steps down. tonight, head coach gary pinkel seeming to endorse the boycott, tweeting, "the mizzou family stands as one. we are united. we are behind our players." >> for first time in quite some time, in decades, frankly, we are seeing sports lead the way in civil disobedience, certainly

is unheard of. >> reporter: tensions on campus have been simmering. last month at the homecoming parade, protesters blocked the car of university system president tim wolfe. african-american students complaining of a series of episodes of white students shouting racist slurs. this past week, a swastika was allegedly scrawled on the wall of a dormitory. protesters, some living in tents set up on campus, say wolfe has failed to adequately address the racism on campus. tonight, the governor of missouri, jay nixon, adding his voice, saying, "racism and intolerance have no place at the university of missouri or anywhere in our state." and the governor of missouri saying, racism and intolerance have no place in missouri. the next game is saturday, if played. >> thank you. and a big change from

washington that could make children more safe on the way to school. for the first time, the governor is supporting a movement to have a seat belt for every child on the bus. here's marcy gonzalez. >> reporter: horrific school bus crashes like this, sending students flying out of their seats. tonight, prompting an effort from federal regulators. and the head of the national administration asking for seat belts on every school bus in the the agency says it will save the lives of children. >> i believe my daughter would still be here if she had her seat belt on. >> reporter: only six states require all school buses to be equipped with seat belts. crash tests by a seat belt

rollovers. >> change that are belted, they're safe. the unrestrained children are thrown throughout the vehicle. >> reporter: tonight, no requirements will be implemented. just a big push to get students marci gonzalez, abc news, new york. and a frightening incident for customers at an ihop. first, they heard a series of loud booms. then the lights went out. when they rushed outside, they saw this. more than a dozen vehicles swallowed up by a giant hole in the earth, running hundreds of feet. investigators are still sorting out why. here's gloria riviera. >> reporter: tonight, a car still teetering on the edge, more than a dozen others buried in the mud below. a massive gash longer than a football field tore through this ihop parking lot on a busy saturday night. >> one of the employees ran over to the window and yells, earthquake. everyone in ihop went into a panic.

>> reporter: slabs of pavement cracked open, creating a massive crevice 15 feet deep. remarkably, no one was injured. noah mathis was eating dinner inside with his family. their car parked outside. >> everything was sudden and quick. they were slamming their forks down from eating and they were running outside as quick as they could. once they are outside, there was a large mob of people sprinting for their lives. >> reporter: emergency personnel say an underground drain pipe collapsed. the investigation has not ruled out construction at the newly opened ihop as a contributing factor. diners, grateful to be unhurt, are now hoping insurance will cover their losses after such a dramatic end to a what was supposed to be a normal night out. gloria riviera, abc news, washington. >> a wild image. still ahead tonight, the high school sexting scandal. how sneaky apps can help students hide hundreds of racy pictures.

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to keep the pictures hidden. >> the main source of transfer of these pictures as best we can ascertain is an app called photo vault. >> reporter: the program can hide as other apps. typing in a secret code allows access to hidden content. authorities say they have confiscated three cell phones and are now seeking search warrants. >> we do have a telephone with several hundred images on it. >> reporter: even parents of students not involved are concerned. this 16-year-old wants the school to move past the scandal. >> they're just scared. they don't want this situation to define them. >> reporter: authorities are considering suspensions, expulsions, and some may face felony criminal charges.

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back now with our "index." starting with mystery over the skies of southern california. this flash of light at times with a tail behind it had so many wondering if they were seeing a ufo or a comet. it was neither. the bright light was an unarmed missile fired off by the navy during a military exercise. that was planned. no one was hurt. we want to revisit a devoted mets fan we told you about earlier this year. this man, the usher that has worked in the stadium for 52 years. but tonight, the praise is not about baseball. 91-year-old luke gasparre has been awarded france's legion of honour medal for his service in world war ii. to this day, he still hangs this picture of himself in the stadium, that's how he first caught our attention. now to the hero of the class, and the life saving lesson he learned from his favorite cartoon. 13-year-old brandon williams, he

has austism. he was demonstrating how he res rescued his friend when he saw she was choking. he knew exactly how to do the heimlich maneuver. he learned it from his favorite cartoon, "spongebob squarepants." nice job, brandon. now to one huge alligator, and the rodeo playing out in a texas parking lot. this woman boldly trying to restrain the gator. 12-foot-long, 900 pounds. she's a part-time trapper, but had never done this before with one this huge. >> went out there, and oh, he was not having fun. i took a step back, like, okay, let's try to catch this guy. >> her other job, much safer. she's a dental hygienist. sanctuary. when we come back, the high school athlete breaking down barriers. the star soccer player who had never kicked a football before. so why was the football team so

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finally tonight, an injury on a high school football team led the coach to think outside the box. he saw someone with real potential, but she had no desire to be in the spotlight. here's john donvan. >> reporter: a midgame water break for the minutemen of cocoa beach high in florida, where one of the minutemen is -- yes, a late-arriving girl. late in the season, that is. madison dinninny, added to the team only as the season was running out. why? because she plays soccer, which means she can kick. something the minutemen's coach regular kicker got injured a few

weeks back. >> i'm staring over there saying, "hey, i mean, she's the real deal." i mean, 40 years of coaching, i've never seen a female actually kick an extra point or a field goal in a tackle football game. >> reporter: but on a hunch, he put her on the team and on the field, and boom! madison scored her first extra point. that's her mom and dad. >> it's very exciting. we didn't think we'd get to see something like this in boys' football, but here we are. >> reporter: then she did it again. and again. and a field goal, which led to a win. and the spotlight? well, madison could live without it. >> it's just nerve-racking. i don't really like the attention, but if that's what breakthroughs are going to get, then i guess i'll do it. >> reporter: and so she did. john donvan, abc news, washington. >> in one game, she scored six points. which is not bad for a kicker. "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.

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