welcome to "world news tonight." air disaster. more than 200 dead. the passneger jet breaking apart in the sky. wreckage stat scattered for miles. could it have been a bomb? tonight, we take you inside the investigation. >> deadly weather. homes destroyed. the narrow escapes, and heartbreaking losses. republican revolt. the presidential candidates, demanding change, unhappy about the debates. meeting without the rnc. will they boycott next week's debate? killer prescriptions. the first ever murder conviction for a doctor that prescribed powerful drugs that caused three

patients to die. and, worst call ever? the outrageous college football play. the ball changing hands eight times. the upset victory, and the stunning turnaround. tonight, every referee on the field suspended. good evening, thanks for joining us on this sunday. i'm tom llamas. we begin with the devastating plane crash, and the mystery of what brought it down. pieces of the russian passenger jet scattered across the egyptian desert. investigators saying it broke apart in midair. something that rarely happens. now, the search for the wreckage and remains of the 224 onboard. the black boxes already in hand, the first bodies returning home. an isis group quickly taking responsibility. but that claim is being met with skepticism tonight.

>> reporter: the charred debris scattered over eight square miles of desert. russian investigators looking at the wreckage. the plane, split in two. it broke up in midair, but why? there are few answers tonight. the metro jet flight took off just before 6:00 a.m. on saturday, from sharm el sheik. to st. petersburg. it climbed steadily to 31,000 feet before starting to quickly lose altitude. then disappeared from radar. >> looking at the tail section if it came off first, was it a bomb or structural failure? >> reporter: isis quickly claiming responsibility, but intelligence financials say they

don't have the missiles that could take out a plane that high. today, the ex-wife of the co-pilot said he had repeatedly complained about the state of the plane. including on the morning of the crash. russia declared today a national day of mourning. as families grapple with their devastating losses. you lose your kids, this grieving mother said, life is finished. those black boxes will be taken back to moscow to try to unlock the mystery. in the meantime, four major international airlines say they will not fly over the sinai peninsula until more is known. tom? >> alex, thank you. ganyard. could this have been a bomb? >> it could be, tom.

the sky at 31,000 feet. we need to look for a catastrophic cause. a bomb could be one of the causes. the problem is, the claims from the terrorist group don't match up with the plane coming apart at 31,000 feet. the other thing to look at, some sort of structural failure. >> we know investigators have the black boxes. but in your opinion, will that matter? >> well, what's more important, the wreckage on the ground, is there things like bomb residue? so, the real investigation needs to shift to the ground and happened. >> steve, thank you. at home. texas battered by at least six tornadoes, 11 reported across the gulf region. and this video, a camera capturing a twister blowing the

parts of the lone star state getting more than a foot of rain. aditi roy with the latest from texas. >> reporter: tonight, wild weather raging across the gulf coast. flash floods engulfing cars and pouring into homes. hardest-hit, once again, texas. with more than a foot of rain falling in some parts over the weekend. the violent storms killing six people. including edward hernandez, torn away from his brothers when their car was swallowed by rushing waters. >> i went under water, didn't see none of them. and then, edward, i seen him, and he said stuff i don't want to hear. >> reporter: his brothers unable to save him. more than 130 high water rescues in the houston area alone. deluge and devastation. seven tornadoes touching down from texas to mississippi. video capturing a tornado ripping through a home.

another twister lifting part of this house off the ground, hurling it 25 feet in the air. dropping it on the family car. >> sounded like a freight train. the window just exploded. >> reporter: inside the home, this woman says her son left the family room seconds before the tornado hit. >> he's screaming, we're going to die. >> reporter: here in houston, it's been raining all day. these waters still very high. and schools are closed tomorrow in the hardest-hit areas. tom? >> thank you, aditi. and rob marciano is here. is texas out of the woods yet? >> it's finally started to ease. as far as rain is concerned. but some spots got two feet of water. flood watches spreading across alabama and georgia into south carolina. watch as the intense storms roll off the gulf, becoming more sporadic.

and across the pacific northwest, this portland train filling up with water. i know exactly where this is. i've never seen it happen. and this system in the southeast. wind, rain, and even winter storm warnings. watch as it drives to the south, some intense rain into the bay area. and a big cooldown in the and a big cooldown in the south, this warm air mass stays with us much of the week. >> rob, thank you so much. and to politics now, the race for the white house. tonight, republican candidates in open revolt over debates. they are angry at questioners and also the party as well. cecelia vega with the weekend roundup. >> reporter: inside this

republican rebellion. representatives for nearly every gop presidential contender, gathering for a crucial meeting following last week's widely criticized debate. >> that it's not a very nicely-asked question. >> even in new jersey, what you're doing is called rude. >> reporter: the goal now, try to change the debate process. not on the invite list, the republican national committee. but this revolt may be just about the only thing these candidates agree on. some want fewer. others want them to be shorter. and ben carson saying there should be different criteria for moderators. >> as opposed to gotcha. >> reporter: ted cruz wants to go further. >> if you've never voted in an republican primary in your life, you don't get to moderate a

>> reporter: but from the very candidate bragging about drawing the huge debate ratings -- >> i don't want the republicans to look weak. like we're afraid to take questions. >> reporter: others just trying to move on. >> i have enough humility to know i have to get better. >> has anyone threatened not to go to the next debate? >> so far, it's nine days out. but the big question, what is this meeting tonight going to accomplish? perhaps not very much. carson's campaign manager telling us, we're going to have a meeting, not a miracle. they have to all agree on something, and that may be easier said than done. >> so many candidates. thank you so much. and some sad news from the entertainment and political worlds tonts. former u.s. senator ted thompson has died today from a recurrence of lymphoma. his family says he died peacefully surrounded by

and in colorado springs, a horrifying sight on halloween. a man walking calmly down the street, opening fire with a rifle. taking the lives of three people, apparently chosen at random. then dying in a shootout with police. here's kayna whitworth. >> reporter: tonight, residents of colorado springs on edge. after three people were gunned down by a man they say was living in their normally quiet neighborhood. >> shots fired. possible shooting. >> reporter: early saturday morning, routines brought to a deadly halt. a man shot to death riding his bike. flowers placed where his body was found. this woman says she was just feet from the shooter and saw it happen. >> he looked right at me. i was like, okay, started walking away. i said, oh, please, don't hurt me. >> reporter: this man woke up, called police, and followed the gunman. >> i looked to my left.

smoking a cigarette. she was shot in the chest. looked to my right, there was another lady shot in the jaw. >> reporter: police caught up with the suspected shooter in this parking lot. in a barrage of bullets, police say the suspect was killed. meanwhile, bystanders diving for safety. >> i got onto my stomach, and they started shooting at each other. the bullets went over me. >> reporter: police are still investigating a motive, and are still awaiting autopsy reports. tom? >> kayna, thank you. next to a conviction sending shock waves through the medical community. a california doctor found guilty of overprescribing medications. prosecutors said she did it for the money, making millions while her patients died. phillip mena has the details. >> reporter: tonight, the california doctor, facing the

after a landmark verdict. after six weeks of testimony, dr. lisa singh, found guilty of the death of her patients. prosecutors saying all of them overdosing on medication prescribed by singh. >> simply writing a prescription to someone, knowing they're going to abuse it, is the theory of second degree murder. >> reporter: friday's verdict marked the first time a doctor was tried and convicted of murder through prescriptions. during the trial, some pharmacists testifying they were concerned. >> the strengths were high and the quanties were low. >> reporter: and this case could set a new precedent. >> doctors could be held accountable if patients abuse that medication. >> reporter: joey was one of dr. singh's victims. >> this is a decision that basically is going to resonate throughout the country. it's going to be changing. we have a prescription drug issue that's growing daily, and this is something that can start

they plan to appeal. phillip mena, abc news, new york. >> we thank phillip for that story. and now to what seemed like the greatest play ever. league officials then announcing it was all a mistake, and they suspended the entire officiating team. here's ron claiborne. >> reporter: six seconds left. duke up by three points. kicking off to miami in white. now, what may be the wildest, most improbable ending to a game ever. one miami player after another, pitching the ball eight times, eluding duke defenders. finally, one player racing down the sideline and scoring. miami wins, 30-27. and for duke, a crushing defeat. >> says a lot about this team, a bunch of fighters. >> reporter: but wait. today, the stunning

announcement, the referees got it wrong. and all of them are ordered suspended. >> this is something you never see. that many officials being suspended for errors on the field, and errors in judgment. >> reporter: four crucial mistakes, including missing this tackle, the runner was clearly down. which should have been the end of the game. even after reviewing video of the play, they still blew it. the officials will have to sit out two games. but this touchdown remains in the books. a thrilling victory for miami, agonizing defeat for duke. ron claiborne, abc news, new york. the victory. still ahead tonight, a scam involving your power bill. what too look out for and how to and later, the health scare that has some chipotle restaurants shutting down. if you're taking multiple medications, does your mouth often feel dry?

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welcome back. tonight, a growing scam that starts with a phone call, urging you to make a large payment to your power bill quickly or it will be shut off. so, who is behind this, and what should you look out for? here's gloria rivera. >> reporter: good service matters most to this cafe owner. so, when he got a warning that his power would be shut off -- if he didn't pay an overdue bill -- >> i panicked. i asked what to do. they ininstructed me how to wire them the money. >> reporter: he quickly loaded $1,800 to a prepaid card and read it to the man on the phone. falling victim to a growing scam targeting utility customers. >> to lose that money, it hurts. >> reporter: duke energy sounding the alarm.

>> when will it be disconnected? >> it's supposed to be today. you will need to bring a total amount of $874.92 in cash. >> i'll do that right now. >> remember, you need cash. >> reporter: those calls made to look like they're coming from your provider. >> utilities will never demand payment and threaten disconnection on the spot. right there, that's one flag. >> reporter: the federal trade commission says, simply hang up and call the power company yourself. a call he wishes he had made. >> it is embarrassing. i've been in business for 40 years. how could someone scam me out of that much money? >> gloria riviera, abc news, washington. >> we thank gloria for that report. coming up, a rescue at sea. a little boat on a big rescue mission. a life saving close encounter. we take you deep underwater.

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finally tonight, a wonder kid that turns to a do it yourself plan to help his left hand. all it took was determination, and a trip to the local library and where a 3 "d" printer changed his life. here's john donvan. >> reporter: it could be part of his costume, but it's not. it really works. see? and not just the light. >> i can do peace sign, and i can also do a thumbs-up. >> reporter: colin was born with a condition that even after several surgeries has left him with fingers that do not grab or pick up. a bionic hand, it's just what he needs. he hears that there are 3 "d" printers that can make simple prosthetic hands. we've introduced some of these kids to you before. the same basic idea is in play, the 3 "d" printers create the

parts for devices that cost just hundreds of dollars, because the designs are available online. so, when colin hears his local library's printer is being made available to him, -- the printing out took a day and mom helping. >> we went to school, we thought it was cool. >> reporter: good attitude, yup. >> the thing we always hoped for, we wanted to raise him to >> reporter: and this is just a starter project. better hands are coming. and you can be sure colin will be grabbing for one of those. >> awesome. >> reporter: john donvan, abc news, washington. >> a bionic fist bump. colin is definitely "america strong". >> "gma" first thing in the morning, and david muir will be right back here tomorrow night.

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