radical road. the jihadi couple and the terror postgs. did the feds overlook clues on social media? plus, the inside story of the deadly shootout with police from one of the cops chasing them down. and, present danger? you've seen the terrifying sces like this. now amazon, taking down certain hoverboards ovov fears of fire. tonight, the concern that has some parents saying, "no way!" good evening.g. thanks for joining us on this sunday. i'm tom llamas. we begin with a major shift in the race for the white house. a republican contender coming on strong. polls show that ted cruz is now the man to beat in iowa. leaping 21 points, a record-breaking surge. the iowa caucus is now just 50

the republicans are set to face off in a debate on tuesday, and trump already trying to take down cruz. mary bruce is at the white house toght. >> reporter: tonight, senator tetecruz is cruising, papaing donald trump in iowa. it's a meteoric rise for the texas senator, a 21-point gain since october in one poll. friendly rivals, but trump is now taking aim. >> when you look at the way he's dealt with the senate, where he goes in there like a -- you know, frankly, like a little bit of a maniac. he'll never get anything done. that's the problem with ted. >> reporter: this after cruz questioned trump's ability to be commander-in-chief. >> it's a question of judgment. >> i would say i have far better judgment than ted, and i think i have a really great temperament. >> reporter: and trump has a new message for any gop party leader conspiring againin him. >> i'm sorry i did this to you, but you've got to get used to it. it's one of those little problems in life. >> reporter: trump maintains strong support in n wa even as he denounces the polling. >> the "des moinesesegister" is

they are the worst. >> reporter: but as cruz rises, ben carson is falling. >> poll numbers go up and down. i wasn't -- i wasn't excited whenhey were up. i'm not excited when they were you know, this is a very fluid contest. >> reporter: and it looks like they may a new candidate to contend with. >> i've made a big decision, i i entering the race for president of thehenited states of america. >> reporter: "saturday night live" bringing back will ferrell as president george w. bush. cruz is rising just as republicans get to ready to face off in their fifth debate on tuesday. where trump will be center stage. but for the firsr time, cruz will be standing right nt to him. tom? >> mary, thank you. and the democrats will debate this week as well. join david muir and martha

saturday, december 19th, 8:00 p.m., 7:00 p.m. central, right here on abc. and new questions about the terrorist attack in san bernardino and if it might have been stopped. also tonight, inside the chase and the shootout with the police officer right behind the killers' black suv. here's kayna whitworth. >> reporter: tonight, investigators testing what they dredged out of this lake after three days of searching. still no word whether they've found any traces of that missing hard drive belonging to syed farookoknd tashfeen malik. a digital footprint that could prove critical for investigators amid new questions about the screening that allowed malik into the country in the first place. >> had they checked out tashfeen malik a little more, maybe she wouldn't have gotten a visa. maybe those people in san bernardino would be alive. >> reporter: malik vetted d homeland security, the state department, and had a criminal backckound check. but investigators don't always scrub social media.

malik's facebook post critical of moderate muslims. now the "new york times" reports she also talked openly on social media in support of violent jihad and "wanted to be a part of it."" >> i'm asking to immediately initiate a program that would check the social media sites of those admitted on visas to see if they are using g rds like jihad, explosives, mass shootings. it's outrageous that this isn't already done. >> reporter: tonight, one of the officers who chased the killer couple down speaking out. >> they haven't stopped. and the back window of their suv shshters. and i see gunfire coming out o o it. >> reporter: the black suv pulls over. farook gets out and starts firing. capps gets out to return fire. >> i saw him shooting at a deputy. that's when i opened fire on him. >> reporter: the terrorists were killed in that shootout.

on the force that he ever fired. and m me than100 million people feeling it this weekend, the worst of it in texas. one of three confirmed tornadoes destroying this neighborhood. high winin knocking this train off its tracks. kendis gibson in texas tonight. >> reporter: tonight, a view from the air of devastation across the state of texas. >> wow. i think that's a tornado. >> reporter: in willis, the tornado destroying roofs, uprooting trees, toppling vehicles. tiny lindale, described as a disaster area by its first responders. tornadoes damaging up to 50 homes. >> we are striving to keep unnecessary people out and have only the people that need access into this area. >> reporter: the twister coming within feet of l le griffin's hoho. where did d go? >> it just started back that way towards the high school and you

where it just came through here. it was just a white ll of stuff flying everywhere. >> reporter: jennifer skender, ououchristmas shopping when the tornado ripped apart her home of 11 years. a neighbor texting her these photos of her house. >> i'm j jt grateful that we weren't home. i think the lord sent us away and he spared us. >> reporter: over the weekend, two dozen severe storms bringing up to half a foot of rain to some parts of texas and wind gusts powerful enough to throw 64 large cargo train cars from the trestle and onto a roadway below. tonight, as people here continue the massive clean-up effort, authorities are astounded that not a single injury has been reported in these weekend storms. tom? >> thank you. >nd the severe weather is on the move tonight, right? >> yes. from washington through

rain still making its way through. expectct to affect the midwest tomorrow morning. and the west, showers from san francisco through los angeles. and someone has a foot of snow, great ski season in the pacific northwest. >> and here in new york city, a completely different story. this was central park, people having picnics and running in t-shirts and shorts. how long will this last? >> it feels good, but temperatures 15, 25 degrees above normal. but we'll be talkingngbout them going down by next weekend. look for seasonal winter-like temperatures. but only for about two days. by the time we get to the holidays, the temperatures right back up. >> tnk you so much.

northwest, an enormououblack cloud d er portland, oregon. an accident triggering a loud explosion, and workers trying to keep the --- the driver died in that crash. and in a new case, a man on a bus street reportedly firing into the air, ignoring calls to stop. and then two officers shooting him, and firing again when he was down. linsey davis with more of the video, and what police are saying tonight. >> reporter: in n nwood, the video shows los angeles county sheriff's deputies fatally shooting a man walking away from them. they fire repeatedly even after he falls to the ground, attempting to crawl away. the sheriff's department says the man, 28-year-old nicholas robertson, had a gun pointed at them and refused the officers' repeated demands to drop it. they say they recovered a loaded

handgun at the scene. more than a dozen people gaththed to protest saturday evening. relatives who saw the video saying the shooting seemed unjustified, and accusing the officers of using excessive force. >> they shot him in his shoulder, and he was crawling to this gas station. >> reporter: police released this video on sunday, which clearly shows robertson, walking down the street with a gun in his left hand. when he was shot, he@was in front of a crowded gas station. >> there are t t people, two women and three children, in a car at a gas pump that is within five feet of him at the time. >> if he goes in and takeke hostages or shoots somebody, we're going to have having a different topic, why didn't police officererdo anything? >> reporter: they say rorortson had fired six or seven shots in a nearby residential area. for now, investigators say they're not making any judgments until all the facts are in.

york. ;. in the bay area, tonight, what we're learning about the nurse andhe risk to the babies, themothers, and hundreds of other adults. here's adidi roy. >> reporter: tonight, a major medical scare in san jose, california. officials at the santa clara valley medical center fear over 1,000 people may have been exposed to tubererlosis after a maternity ward nurse tested positive for the deadly disease. the hospital has identified the 350 newborns, 368 mothers and 308 workers who may have had contact with the nurse between mid-august to mid-november. the hospital posting this letter to its website, "while the risk of infection is low, the consequences of a tuberculosis infefeion in infants can b b severe." hospital officials recommend that the babies protectively take an antibiotic for the next

if they test negativi. >> the judgment is it safer to treat than not to treat. >> reporter: hospital officials say the nurse's annual t.b. test was negative but she was diagnosed with t.b. in november during treatment for an unrelated illness. since she showed no symptoms, they say the risk of exposure is extremely low. nearly 10,000 people in the us develop tuberculosis every year. here in california, health officials say t.b. rates are twice as high as the nation's because the state receives so many global travelers. next to a major alert for consumers, including one you probably haven't heard of. and the one cheating americans out of the most money every year. here's gloria riviera. >> reporter: from threatening phone calls -- >> within the next hour they will be at your doorstep to handcuff you and put you behind bars. >> reporter: -- to pressure to act now. >> the issue is extremely serious and time sensitive.

bilking americans out of millions. advocate revealing the five biggest scams of the year. the better business bureau giving abc news a first look at what its new scam tracker measuring complaints in all >> you can see real time what is profile of the scammers. >> reporter: number five on the sold to consumers for a small fee. number four, fake tech support. andrea hahn was browsing online when a voice came through her laptop saying it was infected. she called the number on the screen and -- >> they took control of the computer. >> reporter: number three, those fake sweepstakes asking for a small fee to clect a prize. number two, aggressive debt collectors impersonating authorities. number one on the list, the irs scam. still surging this holiday season, 2,000 reports a day, victims losing altogether $1

>e said i'll be going to jail and agents would be coming to handcuff me and take me away. >> reporter: kevin lemon is one of them. he lost $500. remember the basics. be wary of unsolicited communication, don't engage, and never send money by wire or debit card. >> it felt very bad, very bad. >> reporter: gloria riviera, abc news, washington. >> all right. we thank gloria for that report. still ahead, it's one of the hottest gifts. so, why is amazon taking down certain kinds of hoverboards. some have caught fire. the new concerns with their batteries. and later, spectacular holiday homes lighting up the night. but could some be blinding pilots? the new concern in the skies, coming up. why pause to take a pill? or stototo find a bathroom? cialis for daily use is approved to treat

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welcome back. it's one of the most popular gifts out there. but now amazon is no longer selling several hoverboards. here's clayton sandell. >> reporter: after frightening scenes like this. a hoverboard suddenlyatching fire in a washingtonn state mall. >> it's on fire! >> reporter: the federal consumer product safety commission says it is now testing ten hoveveoards in nine states. now, megaretailer amazon has stopped selling at least one and firefighters say ignited new york home. that manufacturer, swagway, says it meets allafety

telling abc news, we're glad this is takinplace. especially in light of recent concerns with the fires with the poor quality batteries." concererover lithium-ion batteries catching fire has now prompted american and delta to join united and jetblue in banning hoverboards on planes. brian fong says buyers should avoid lower-ququity boards. and avoid charging them overnight. shana haines bought a two-wheeler for her 10-year-old aughter. you changed your mind, why? >> i didn't want to take the risk. >> i don't really want it anymore. >> reporter: really? you're kidding me. clayton sandell, abc news, denver. coming up, burglars ransacking a star athlete's house and stealing something s s

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now to a historic weekend for women in saudi arabia. they were able to vote for the first time ever, and since they can't drive, manan of thehe took uber to the election site. now to some holiday homes, lit up so brightly, they could be dangerous to pilots flying overhead. the faa concerned tonight over popular laser lighting kits like starshower. the lights so powerful, they've been spotted by pilots thousands of feet above the ground. the agency urging consumers to make sure the laser projectors are pointed at the homes, and not towards the y. we want to show w u an image going viral that caught our attention today. this military dog named rocky, and the purple heart capturing the hearts of so many americans. rocky and his handler, army specialist andrew brown, were injured by an explosion in afghanistan earlier this month. after several surgeries, the brave duo are doing well. when we come back, a surprising burst of holiday cheer.

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rprising their families for the holidays. here's john donvan. >> reporter: look at that kid's smile. and santa claus, and who's that guy in the backgrgrnd? it's theime of the year for happy prank, dads surprising their boys in gym class. or hide behind santa, like trent baskerville did. >> i'm very anxious to see them. >> reporter: 6-yeararld jordan took a moment to thank the man in red. and this brings us to the photo. here's what actually happened. rob stella had been gone a year in the navy, took a while for e kids to spot him on this day. but here's what you get.

a kid's face can also look like this.. john donvan, abc news, washington. >> likely the best christmas ever. "gma" in the morning and david muir right back here tomorrow night.t. i'm tom llamas in new york. have a great evening. good night.coming up on kcrg-tv9 news at 5:30... vermont senator bernie sanders closes out 2 days with 7 eastern iowa stopopwith a speech at cornell college. governor branstad is set to make history tomorrow as the longest serving governor in american history. and a woman uses her lofe for art to personalize christmtm ornaments each yearart the national czech and slovak museum and library. you're watching kcrg-tv9. now, from your 24 hour news source, this is kcrg-tv9 news at

right now, there is heavy police activity across the street from taylor elementary school in dar rapids. officers have weapopo visible and have closed off a few blocks on 8th street sw. the 500, 600 and 700 blocks are closed off for traffic. viewers living the area say that police have told them to stay inside. we're working with police to find out more. lots of rain coming down in eastern iowa. meteorologist chris havely starts us off f night. chchs, steady rain will continue through the night, possibly heavy at times. by sunrise, showers will become more

from the area. additional