tonight, president obama on russia. was vladimir putin himself behind the hacking during the presidential election? the president reveals what he told putin. his warning to russia's leader. and will the u.s. now retaliate? the winter storm moving across the country tonight, just as the weekend begins. and the major fire in wind chills well below zero. multiple injuries tonight. the car plowing into a bus stop, several waiting to board the bus. the new video tonight. the student who brought guns to school. his parents, who noticed them missing. they race to school. the takedown of their son. and the jonbenet ramsey case. the new turn involving dna. and now, right here, the interview. the grand juror breaking their silence. and, the famous voice this week, and so many americans who heeded the call. can you guess our person of the week?

good evening. it's great to have you with us on a friday night. we begin with president obama, making it clear who he believes was behind the russian hacking. he said not much happens in russia without vladimir putin. and abc news confirming the fbi agrees with the cia, putin directed it. and now, we learn what happened during this moment right here. what president obama says he told vladimir putin well before the election about the hacking. martha raddatz and her questions for the president. >> reporter: tonight, president obama revealing he confronted vladimir putin about the russian hacking face to face in september, warning him not to tamper with the vote on election day. >> i felt that the most effective way to ensure that that didn't happen was to talk

to him directly and tell him to cut it out, and there were going to be some serious consequences if he didn't. >> reporter: the cia and now the fbi both believe putin himself ordered the hacking of the democratic national committee and of clinton campaign chairman john podesta. i asked the president if he agrees. just to be clear, do you believe vladimir putin himself authorized the hack, and do you believe he authorized that to help donald trump? >> what i can tell you is that the intelligence that i've seen gives me great confidence in their assessment that the russians carried out this hack. >> reporter: putin, specifically? can you not say that? >> well, martha, i think what i want to make sure of is that i give the intelligence community the chance to gather all the information. but i'd make a larger point, which is, not much happens in russia without vladimir putin. >> reporter: still unconvinced russia was behind the attack -- president-elect donald trump.

>> they have no idea if it's russia or china or somebody. it could be somebody sitting in a bed someplace. >> reporter: do these tweets and statements by donald trump embolden the russians? >> i think that the president-elect is still in transition mode from campaign to governance. he still has campaign spokespersons sort of filling in and appearing on cable shows. >> reporter: the president today bristling at republicans for not denouncing russia during the campaign. he says it was clear which candidate russia was trying to hurt. >> some folks who had made a career out of being anti-russian didn't say anything about it. and then after the election, suddenly they're asking, "well, why didn't you tell us that maybe the russians were trying to help our candidate?"

well, come on. >> reporter: and now hillary clinton is speaking out, saying putin targeted her because as secretary of state she spoke out against corruption in russia's own elections. >> vladimir putin himself directed the covert cyber attacks against our electoral system, against our democracy, apparently because he has a personal beef against me. >> reporter: clinton blames her loss on two, quote, "unprecedented" events -- the hacking, and the announcement by fbi director james comey just 11 days before the election that agents were looking over new e-mails connected to her private server. >> swing state voters made their decisions in the final days breaking against me because of the fbi letter from comey. >> reporter: today, praise from president obama.

>> i've said before, i couldn't be prouder of secretary clinton, and i don't think she was treated fairly during the election. i think the coverage of her and the issues was troubling. >> and martha joins us live from the white house tonight. president obama promising the u.s. will retaliate against russia. >> reporter: yes, he said it will be a thoughtful and methodical response. some public, and some of it not public. he said, send a clear message, not to do this stuff, because we can do this to you. meanwhile, reports their laughing this off at the kremlin saying, show us the proof. here's brian ross with the evidence so far. >> reporter: in moscow tonight, a challenge to put up or shut up, with deputies for russian

president vladimir putin, and russian reporters from a kremlin-funded tv network demanding the u.s. produce any evidence it has implicating russia in the hacking attack. evidence that president-elect donald trump continues to maintain is far from certain. >> they're fighting among themselves, they're not sure. >> reporter: but in fact, america's intelligence agencies are sure. based largely on the forensic evidence the fbi and cyber security experts discovered inside the computers of the democratic national committee. >> they get in by what's called a spearfish attack. >> reporter: among the experts on the case, cyber security analyst justin harvey, who says the russians first planted what's called a dropper or a beacon to send material back to moscow. >> a dropper is a little tiny bit of software that calls back home and says, "i'm here, i was successful." >> reporter: and it had a telltale russian signature. with experts saying it was written in moscow's time zone, and seemed to have gaps on what were russian holidays, all entered by a distinctive keyboard. >> we saw the cyrillic alphabet

being used. >> reporter: and then u.s. intelligence says the beacon transmitted to an internet address overseas. >> and it was an i.p. address that had been previously seen in other russian-attributed attacks. >> reporter: but it wasn't just forensics. the fbi has joined the cia in the assessment that the russian president was directly involved in the attack. based on new information say comes directly from the kremlin. >> and brian, they say it was largely to help donald trump. does this put increasing pressure from the president-elect to at least acknowledge this? >> yes, with key republicans raising questions about rex tillerson, nominated for secretary of state. >> brian, thank you. we turn next to the

dangerous cold and the major snow storm from coast to coast. tonight, the images of the firefighters, and the six-alarm fire. here's eva pilgrim. >> reporter: tonight, heavy snow moving into the heartland. conditions deteriorating, as bone-chilling cold invades the country. that arctic air creating scenes like this all along the great lakes. relentless winds and up to two feet of snow. outside syracuse, a driver, blinded by whiteout conditions, landing in this frozen creek. she did not survive. in boston, firefighters freezing while battling this six-alarm fire. breaking out just as families were waking up. frightened residents scrambling outside, into the 15 degree below zero wind chill. >> a very stubborn and tough fire. traveled the length of the building. we've had significant issues around freezing. ladders are frozen. we can't get them up and down. water hydrants and so on. >> reporter: tonight, nearly two

dozen people displaced. in the west, heavy rains sent mud and debris down los angeles-area roads. first responders making multiple high water rescues in the state. including two women and their dogs surrounded by fast-moving waters. david, here in minneapolis, we're expecting up to a foot of snow. officials begging people to stay off the roads. and the real cold, sunday wind chills here could be near 40 degrees below zero. david? >> thank you. and ginger zee joins us with the latest. ginger? >> let's get to the 40 states that are included in some advisory or warning. alerts stretching to arkansas, freezing rain in cincinnati, washington, d.c. you can see snow in the northern plains and great lakes. as it moves east, a lot of people will see the wintry mix change over to rain.

or complete snow to rain. and 25 below, it feels like, in des moines on sunday. >> ginger, thanks. in the meantime, we move on to other news, and the images just released inside a junior high school on lockdown. a 15-year-old's parents noticed guns were missing, and raced to the school. here's matt gutman. >> reporter: tonight, that new video showing what began like so many of those sickening calls. a 15-year-old had fired a shotgun. that officer, wearing a body camera. >> police department! >> reporter: bursting into this junior high school in bountiful, utah. running down the halls toward the assailant. but he finds others got there first. the boy's parents.

their son pressed against the wall. >> is it just you? >> reporter: these two students were just a classroom away. >> they pulled him out of the room, and, like, told him to put the gun down and everything. >> reporter: as the officer cuffs him, you can see his arsenal. the shotgun, the pistol. all of those shells. the boy's parents had noticed two guns missing from their home and rushed to the school. those two parents jumped into action when they noticed their son's behavior changing. now, he's being charged. david? >> thank you. and now american officials say a u.s. navy research ship was using a drone to collect ocean data, when a chinese ship sent out a small boat to snatch it. the incident happened in international waters, about 50

miles off the fiphilippines. and 8,000 people have made it out of aleppo, but the 47 orphans are still trapped. today, it's believed they tried to board a bus, but were forced to stop. still waiting to escape. now, 20 years after the murder of jonbenet ramsay, a juror speaking out for the first time. here's amy robach with the interview. >> reporter: 20 years after the unsolved murder of 6-year-old beauty queen jonbenet ramsey, we are taken inside the early case against her parents. it's 1998, and prosecutor alex hunter is convening a grand jury to review the evidence. those proceedings are secret, and the penalties for revealing testimony or evidence can be severe, even jail time. but one juror, two decades later, is now talking to "20/20."

we agreed to alter his voice and show his face in shadow. before you were a grand juror, what did you know about the jonbenet ramsey case? >> very little. i saw that there was a little girl dressed up with, in my opinion, a sexual persona, and it disgusted me and i turned off the tv. >> reporter: that grand jury hearing evidence for more than a year, instructed only to indict if they found probable cause. was there enough evidence to indict john and patsy ramsey of a crime? >> based upon the evidence that was presented, i believe that's correct. >> reporter: but if the case went to trial, did he believe the ramseys would be convicted? >> no. >> reporter: no doubt? >> there is no way that i would have been able to say, beyond a reasonable doubt, this is the person. >> reporter: in the end, the grand jury indicted, not for murder, but for child abuse. finding the ramseys allowed jonbenet to be "placed in a situation which resulted in death." in a stunning twist, that prosecutor decided not to move forward with a case against the ramseys, and ten years later,

another d.a. publicly cleared the family. amy robach, abc news, new york. >> thank you. and she'll have much more on her special "20/20" tonight. the full interview, 10:00 p.m. eastern. and there's still much more ahead on "world news tonight." the disturbing video just in. the football star punching a woman inside a restaurant, weeks before his bowl game. and shots fired inside a walmart. holiday shoppers taking cover. and if you're shopping this weekend, the warning to famili s families. can some popular smart toys make you more vulnerable inside your home? we'll explain it all after the break. ♪

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family more vulnerable to hackers if you do so? here's rebecca jarvis. >> reporter: they're some of the hottest gifts this holiday season, but tonight a new warning about so-called smart toys. a senate report cautioning that some of the toys, which connect to the internet, can be vulnerable to hacking, compromising sensitive information like security questions and birthdates. last year, a data breach at vtech electronics exposed personal information of more than 6 million children. >> the hacker found a treasure trove of data, including parents' names, home addresses, passwords, and as well as kids' names, pictures, chat logs. >> reporter: tonight vtech tells us says they've since made changes to enhance the security of customer data. and in the last year a security firm also found flaws in this fisher-price's smart toy bear and here-o's gps watch. both companies say the problem was quickly fixed. david, to protect yourself, read the device's privacy policy to learn what personal information

the toy will collect and be sure to change your default passwo password, right away. >> thank you. when we come back, paying tribute to an american hero. and the college football star seen punching a woman there in the restaurant. and the car plowing into a car waiting on the sidewalk. we'll be back in a moment. foun in my asthma treatment with breo. once-daily breo prevents asthma symptoms. breo is for adults with asthma not well controlled on a long-term asthma control medicine, like an inhaled corticosteroid. breo won't replace a rescue inhaler for sudden breathing problems. breo opens up airways to help improve breathing for a full 24 hours. breo contains a type of medicine that increases the risk of death from asthma problems and may increase the risk of hospitalization in children and adolescents. breo is not for people whose

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and nine people injured, authorities on the scene investigating. officials searching for gunmen at a walmart. a large amount of cash stolen. no one injured. and john glenn, the first american to orbit the earth honored in the ohio state capitol today. when we come back, the call for help, and the stunning response. can you guess our person of the week? my friends think doing this at my age is scary. i say not if you protect yourself. what is scary? pneumococcal pneumonia. it's a serious disease. my doctor said the risk is greater now that i'm over 50!

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finally tonight here, never forgetting where you come from. when dolly parton witnessed the devastation from the fires in tennessee, she used the power of her voice to reach out to her peers. they lined up, and so did countless americans who wanted to help those in need. our persons of the week. >> hi, this is dolly. >> reporter: dolly parton was determined to get her message out. offering up these words, her explanation. why she chose to do this. her own family, and her concern for others who live there, too. >> my first thought went to my family. because they all live back there in those hills. we were fortunate. we didn't have much damage. >> reporter: but she was well aware of the hundreds of families who lost everything. >> these are the woods that i roamed around in as a little kid, and all my people are still there. when you are in a position to help, you should.

♪ southern eyes grow teary ♪ as i wonder how the old folks are back home ♪ >> reporter: the telethon airing this week across a host of networks. kenny rogers and their duet. >> kenny and i go back a long way. he said, what can do to help? i said, get your butt down here and sing "islands in the stream" with me. ♪ islands in the stream that is what we are ♪ >> reporter: the list of names answering her call continued to grow. from hank williams jr. -- ♪ over the hill >> reporter: -- to reba mcintire. ♪ sing choirs of angels >> reporter: her dollywood foundation and area businesses pledging to provide $1,000 a month for six months to families who lost their homes. and that telethon, smoky mountains rise, helped raise more than $9 million. late this week, the families lining up to receive their

first checks. steven frank says he will use it to buy clothes. >> yeah, this is a huge help. thank you, dolly parton. this has been amazing. >> well, i say it's the least i could do. this is my home. the country music artists are amazing. they're always willing to help. ♪ >> and so we choose those families in need. the americans who heeded the call, and of course dolly parton for using her voice to help. thank you, dolly. and thanks for watching. good night.

this is "jeopardy!" today's contestants are... a corporate controller from frisco, texas... ...an attorney from st. louis, missouri... ...and our returning champion, a science content developer from austin, texas... and now here is the host of "jeopardy!" -- alex trebek! alex: thanks, johnny. thank you, ladies and gentlemen. both tim aten -- last week, and our current champion, cindy, this week, won a couple of games in which they seemed to surprise themselves.