welcome to "world news tonight." we're following a mass casualty event on an american highway. the tour bus ramming into a truck. at least 17 killed, dozens hurt. the highway shut down for hours. investigators now on the scene. fight to the finish. donald trump, losing ground in now, his own campaign staff acknowledging he's falling behind. all-out assault. the new offensive against isis, backed by u.s.-led air strikes. martha raddatz in the region tonight. dangerous ride. a police officer taking a civilian on a ridealong when a

and, reverse the curse. the chicago cubs making their first trip to the world series since 1945. now, hoping to finally shake the curse of the goat. good evening. thanks for joining us on this sunday. i'm tom llamas. we begin with the highway horror, the deadly collision in southern california. a rig. at least 13 killed, dozens hurt. the bus crashing on interstate 10. tonight, we're learning more about the tour company and that driver. here's adrienne bankert. >> reporter: tonight, investigators scrambling to determine the cause of this massacre on a southern california highway.

with 13 confirmed fatal accidents. it's tough for all of us. >> reporter: just before dawn, a bus slamming into the rear of a semi truck. survivors telling police they believe all the passengers were asleep at the moment of impact. officials saying most of the 13 killed were in the front of the bus. severe, the bus careened 15 feet into the bed of the truck. this is all that's left of the semi behind us. it appears the big rig swallowed the bus. officials saying there were no signs the driver hit the brakes. the highway shut down forhours. the bus driver among the dead.

chaotic here. i spoke with a couple of families who say they're waiting to find out if their mother and grandmother survived. tom? >> thank you. and now, to a fight to the finish between donald trump and hillary clinton. trump's team acknowledging he's behind in the polls. clinton, 50%, trump, 38%. a wider margin than other recent polls, but most showing establishing a solid lead. here's david wright. >> reporter: as he starts a swing through the must-win state of florida, donald trump is trying to look forward. but his campaign manager acknowledged it won't be easy to close the gap. 65% of voters disapprove of him

victory at legitimate. and trump outlined his vision for the first 100 days of trump america. >> it's a contract between donald j. trump and the american voter. >> all of these liars will be sued after the election is over. >> reporter: his opponent not letting up. >> we can g sue women who made accusations against him. i'm going to keep talking about what we want to do. >> reporter: new women coming forward, one claiming trump kissed him a decade ago. abc news unable to confirm his story. >> it's become very clear that you're probably going to lose.

[ laughter ] >> reporter: "snl" mocked trump's claim the election is rigged. >> all of the newscasters are making me look so bad. >> and how are we doing that. >> by taking all of the things i say and do, and putting them on tv. [ laughter ] >> reporter: democratic vice president nominee tim kaine is calling trump a sore loser, but trump has an schedule. tom? >> 16 days to go. thank you. hillary clinton making her big move, focusing not just on battleground states. also now trying to return red states blue. mary bruce on the campaign trail. >> reporter: in north carolina today, hillary clinton taking her closing argument to church. >> anger is not a plan. >> reporter: with the momentum on her side, clinton is looking

interacting again with people we don't agree with. i do that all the time. [ laughter ] >> reporter: as she cris-crosses the battleground states, clinton is hammering home her point. >> that may be clear who donald trump is, but this election is about who we are and what we believe and what we stand up for. >> repte reaching out directly to trump supporters, as she faces the possibility of trying to unite a bitterly divided country. >> i understand they need a president who cares about them, will listen to them. and i want to be their president, too. [ cheers and applause ] >> reporter: clinton says she's looking past her opponent.

battle for congress, lending her support to democratic candidates. today, weighing in on the north carolina senate race. >> unlike her important, debra has never been afraid to stand up to donald trump. >> reporter: clinton using candidates' ties to trump in the downballot races. some thinking trump's democrats take back the house. now let's get right to jonathan karl. the headline of the poll, showing a bigger clinton lead. but there are other troubling numbers for trump. >> reporter: more than anything, what is driving that is women voters. hillary with a 20-point lead among women. 55% to 35%.

pr 44% to 41%. >> and trump showing his greatest strength? >> reporter: he's losing dramatically among nonwhite voters. hillary has a 58% lead among not whites. but look at his support among whites. he only has a lead within the margin of error, 47% to 43% among whites. >> a significant gap, and time is running out. jon, thank you. and download the abc news app for live streaming breaking news reports from the campaign trail. let's turn to a massive manhunt under way in california. starts with a traffic stop that erupted in gunfire. you hear the shots there. a police officer bringing a civilian on a ridealong.

the shootout starting. ron claiborne with the video. >> reporter: 4:30 a.m., the police officer with a civilian guest in his police car tries to pull over this silver mazda. but then it takes off. >> going to be in a pursuit. failure to yield. >> reporter: the officer on his siren in pull pursuit. then a volley of shots from the passenger side. more shots fired, disabling the police car. it rolls to a stop. these photos taken later show the car's shattered window. and how close the shots came to

civilian. neither were seriously hurt, but the suspects got away. and tonight, they're still on the run. >> ron, thank you. overseas tonight, and the battle for mosul. intense fighting under way. fight martha raddatz in the region tonight. >> reporter: the resistance has been fierce. a advancing, and forces opening fire. after one narrow miss, then another, finally, the car is struck. catching fire. the gunfire also intense saturday on the outskirts of

there are about 5,000 americans on the ground in iraq, like the soldiers behind me. most are staying inside the wire, on bases. but there are about 500 out in the thick of it. defense secretary ash carter telling us in northern iraq, it's a dangerous but vital mission. >> whether they're flying airplanes overhead, or advising it's also important that everybody understands we must do this. we have to protect ourselves. >> reporter: tonight, more than 1 million civilians remain under isis control in mosul. that's why the next phase of this operation is so difficultdifficult. tom? >> martha, thank you. now to the big chill moving

of record heat. many temperatures and windchills dropping to below freezing. plus, snow and strong winds blowing across lake placid, new york. rob marciano? >> temperatures in the morning on wednesday, feeling like at or below and a bit of a warming trend after that. looks like above average temperatures into the beginning of next week. several storms coming into the west, going to have some wind with it. and one or two more storms mid and late week, into washington and southern california. a busy week ahead for the west. now to the megabusiness deal

at&t agreeing to buy timewarner for $85.4 billion. the sale will require the approval of government regulators. and the chicago cubs celebrating their first national league pennant in 74 years. now, playing the world series agai here's alex perez. >> reporter: tonight, the lovable losers are finally w winners. tears in the stands. >> it's hard to believe. i'm in shock right now. it's my first time here, it went the cubs' way. >> reporter: the cubs winning the pennant in front of their

they're hungry for a moment like this. we're so excited to be a part of the team that gives them an opportunity to see a chicago cubs team in the world series. >> reporter: eddie vedder, just one of the fans caught up in cubby fever. 71 years ago, a loaf of bread cost 9 cents. it was there, that curse on the team, and the curse of the billy goat was born. a curse these fans believe is finally broken. >> it's amazing. it's been a lifetime in the making. >> reporter: all day, fans have been lining up to take a picture in front of the marquee here. the cubs last won the world series in 1908. taking on the cleveland indians, whose last win was 1948. so, stakes are high across the board. tom?

still ahead on "world news tonight" this sunday, the intensifying search for a missing hiker. and the new worry for rescue teams tonight. plus, the bonus pay about-face, whith american servicemen and women and their families. and the boat capsizing in the gulf of mexico. what may have made all the difference here. stay with us. go, go! [ rock music playing ] have fun with your replaced windows. run away! [ grunts ] leave him! leave him! [ music continues ] brick and mortar, what?! [ music continues ] [ tires screech ] [ laughs ] [ doorbell rings ] when you bundle home and auto insurance with progressive, you get more than a big discount. that's what you get for bundling home and auto! jamie! you get sneaky-good coverage..

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back now with the financial mix-up causing so much frustration for american soldiers and their families tonight. here's eva pilgrim with the latest. >> reporter: thousands of soldiers fighting a new battle against the military they once proudly served. >> i had done everything they asked of me. these were promises they've

>> reporter: during the height of the wars in iraq and afghanistan, the national guard offered bonuses. but now the military wants that money back from thousands of soldiers. the bonuses were supposed to go to soldiers with skills in high demand. but the pentagon said it paid out bonuses never should have gotten the extra cash. $22 million already recouped. >> month after month, paying about $1,300. >> reporter: this soldier, forced to refinance his home to repay $46,000 in bonuses. another soldier refused to pay.

commanders. >> reporter: the pentagon waived his repayment, but he's not croppcr dropping the case. >> are any of the soldiers getting to keep their bonuses? >> they've waived a lot of them, but thousands still having to re still ahead, the race to find a 21-year-old hiker. plus, the problem with yoga pants. what one man said, sending women

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weather conditions. and a terrifying boat trip off the coast of florida. 12 miles out, they're clinging to the hull of their capsized vessel. they were rescued at dawn, thankfully, nobody was hurt. officials say their life jackets may have saved them. and a woman criticized of protesting. the man saying it was a joke. clearly not a joke for some. coming up, a story you don't want to miss. the incredible power of dogs. how one is changing a little boy's life forever.

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tornado may sound like trouble. but not this time. here's john donvan. >> reporter: here it is. the moment that kai the boy mee meets tornado the dog. >> kai was 4 when he was >> reporter: he showed a knack for a different kind of communication. >> we would go to the pl playground, and he would seek out interactions with dogs as opposed with people. >> reporter: enter tornado, trained from birth to be a service dog specializing in autism, trained to help him feel safe, to be loyal. so, about that moment when the

here's why mom cried. >> seeing him immediately, when he laid down, and the relationship reciprocated back to him, it was breathtaking. he seems so much more content. he seems more fulfilled. >> reporter: a team, boy and dog, inseparable. john donvan, abc news. >> tonight, we salute kai tornado for being "america stro strong". i'm tom llamas.

trump are focusing on battleground states in the southeast with about two weeks until election day. a cedar rapids man convicted of killing another man last year is set to go on trial for a second murder. and saying thank you. kids who were in the nicu at st. luke's in cedar rapids return to the hospital to visit with staff who cared for them. you're watching kcrg-tv9. now, from your 24 hour news source it's another nice day across eastern iowa. this is a look out of our fayette city cam tonight. meteorologist britley ritz starts us off tonight. britley, cooler weather on its

tonight we'll stay clear once again, but a cold front will scoot closer and attempt to push over. this has changed wind directions to the north. we'll drop to lows of 40 tonight, but warm into the low 60s tomorrow. staying dry yet until tuesday and especially into wednesday. could even hear a few rumbles of thunder wednesday. from here on out, for the rest of the week temperatures stay close to where they should be for this time of year. you can expect highs in the low 60s and upper 50s. tonight: mostly clear. wind: 5 36 to 42 tomorrow: mostly sunny. wind: e 5-10. high: 60 alo: 60 dbq: 59 iow: 61 57 to 63