. now at 11:00, new clues in a homicide in a hotel. we've got pictures of the man for whom the police are looking. plus developing right now, a long-time tv journalist killed in a car crash. the new information just coming

in. first tonight, a local man sentenced to prison after admitting to collecting images of young girls for nearly 40 years. >> according to court documents, he stole photos of children at a photo lab where he worked and made video recordings. >> reporter: they found vialism manuals of children having sex erica lived next door to him. he pled guilty to child p ochl rn charges but used his job at a photo lab to collect pictures of

local kids. when he saw a child in a photo from a customer that he liked, he made a copy for himself. he recorded young girls that came into the store and copied those videos to dvds and stalked some one of the most family friendly places in d.c. >> he would stop in over the weekend and i'm like where you are off to? he's going to the zoo. i thought he liked taking pictures. >> reporter: that he did. >> i saw him taking a tripod with him to the zoo. >> reporter: martin told police he's been collecting images since 1977. he was sentenced today to more than seven years in prison. now, earlier tonight, a few hours ago, we reached out to cbs. as martin has not worked for him

since 2016, they are looking into the details of this and it should be noted, in times past just a few years ago, a d.c. man was convicted on child porn charges after a cvs employee noted that he was trying to printout images and reported it to the police. >> thanks, chris. a developing story now. "60 minutes" correspondent bob simon has been killed in manhattan. we're told he was in a town car that hit another vehicle. simon and the driver were taken to a hospital. simon was pronounced dead. he was 73 years old. now to new details in the hotel homicide in downtown d.c. tonight, police released new surveillance video of the person inside the donovan where a local attorney was found stabbed to death.

shomari stone is live. >> reporter: police hope this surveillance video can help with a lead or a tip in this case. they don't know if the man or woman you're about to see on camera is a man or woman. they are calling this person a person of interest and they are hoping they can help solve this murder mystery. take taking a look at the surveillance video, police want to talk to him about the murder of a d.c. lawyer found stabbed to death inside his fourth floor hotel room. tonight, a neighbor reads a statement. >> we are deeply saddened and shocked by the loss of our beloved son and brother. we have no further comments at this time. >> reporter: police don't know if the person is a man or woman. he's appearing to cover his or her face. the elevator button is pushed twice and then the person

decides to take the stairs. the face is no longer covered. seconds later, the face is covered. police collected evidence from the scene. police chief says his family reported him missing 24 hours before his body was found. >> we know that the victim in that case had been reported missing by family. i believe about 24 hours before. >> reporter: he and his wife lived in a condo on capitol hill around 20 blocks away from the donovan hotel. he was an attorney for dla piper, llc, a law firm specializing in intellectual property. now, police want anyone with information, if you recognize the person of interest in that video, they want to hear from you. we posted it on our website at nbcwashington.com. i'm shomari stone, news 4. it's going to get really

really cold around here. am i right, doug? >> you are right. you're going to wake up tomorrow and you think serving going to be okay and then tomorrow afternoon you'll walk out from work and man it's going to hit you like a ton of bricks. temperatures today into the 40s. 47 in d.c. 45 in frederick. now, what if i told you tomorrow at this time these temperatures would be 40 degrees colder? that's right. that puts us around 7 degrees in d.c. at this time tomorrow night. at least that's the windchill. so not too cold early. temperatures falling quickly and winds will be gusting to 35 miles an hour during the day. we're talking about the windchills falling into the single digits by around 8:00 9:00 10:00. days in the 20s. six last winter. the next seven days i expect three. we'll talk about that more coming up. >> thank you, doug. the orange and silver lines are back up and running tonight.

about 2:00 this afternoon there were trains still single tracking but they did not stop. passengers were directed to shuttle buses. the station was closed for more than an hour. metro's ventilation system did not work the way it was supposed to during the deadly underground smoke emergency last month at the metro stop. instead of pushing the smoke out of the tunnel, fans in the system pulled the smoke towards the passengers in the train. that's according to the ntsb. the train itself drew smoke inside because its ventilation was not turned off. today, the ntsb recommended that all transit agencies throughout the country test their ventilation systems. >> when we make an urgent recommendation it's because we have already, even though we haven't completed the investigation, we have seen there's a problem in this area and the problem needs to be addressed immediately. >> tomorrow marks one month since the incident at the plaza

station. the metro board meets tomorrow and this investigation is likely to be on the agenda. a tragedy in frederick county. a popular teenager died behind the wheel of her suv as she was headed to high school. she crashed into a school bus traveling in the opposite direction. knight died on the scene. the bus driver and a student on the bus went to the hospital with minor injuries. officers say that knight was not using her phone at the time of the crash. a legal victory for the d.c. police chief tonight. the jury in a whistleblower trial ruled in cathy lanier's favor. he claims he was demoted after publicly contradicting the chief about the practice of police escorts for celebrities. but chief lanier claims that he was demoted because of poor job

performance. both sides accuse the other of not telling the truth. >> the real story here for captain burton was he was demoted and he tried to use misinformation to distract everybody from that. >> at the time i testified before the city council, i truly believe that the chief had lied to all of you, to the public of the district of columbia and i still believe that. >> this started in 2011 when actor charlie sheen got a police escort from dulles airport and tweeted about it. a bill the president has threatened to veto is now headed to his desk. the house passed legislation approving construction of the keystone oil pipeline. while republicans say the pipeline will create jobs critics say it's bad for the environment and will do little for our economy. congress could approve the request for military force against isis. the president unveiled his request to the public today.

he's asking for air strikes to continue for three years and he wants special ops forces to be able to follow terrorists into any country. but the president is promising that this will not become another ground war. republicans say the president's request doesn't go far enough while democrats don't like the option of ground troops. tonight, thousands of students from the university of north carolina, north carolina state and duke put aside their to mourn the death of three muslim students. police believe the shootings were the result of a parking dispute at the condo where they lived. at tonight's vigil, students prayed shared stories, and offered comfort to the victims' families. the man who did the shooting is in custody tonight. next at 11:00, a high-speed police chase takes an unexpected turn. >> a dramatic crash that ended

the pursuit. we'll report why the driver chose the wrong people to mess with. a new construction home or maybe yours is an older model, whatever the case does your home have what it takes to keep you and your family from being reported? i'll have that story coming up. plus powerball fever. the winning numbers are in. find out in a moment if you're america's next multimillionaire. and here's a traffic alert from melissa mollet. >> i-66 between route 7 and

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a dramatic end to a high-speed police chase in texas this afternoon. the suspect violently rammed the vehicles from behind and one of the passengers didn't take kindly to that. they got out,car, threw the guy to the ground just before police were able to get there and arrest him. a teenager in the minivan was taken to the hospital with unspecified injuries. people call it the silent killer. it has hit local families several times already this year and carbon monoxide poisoning kills hundreds of people every year. tonight's consumer reporter erica gonzalez walks through how to keep your family safe. >> reporter: high levels of carbon monoxide are being ee emitted into your home. get out. if you don't have a sounding

alarm, you won't know what hit you. >> we call it the silent killer. >> reporter: unlike a fire c.o. is odorless and colorless. just last month, six people narrowly escaped death from poisoning from carbon monoxide and it was a detector that alerted this resident of unhealthy levels of c.o. but without any detectors, five people died in 2012 from apparent carbon monoxide poisoning after the gas leaked from a furnace. >> c.o. is about the same weight as air. >> reporter: caruso homes let us in one of their model homes so we can show you where the detectors need to be installed. this home has three floors. potentially a lethal scenario if there's not a carbon monoxide in sight. >> it's constantly taking a sample of the atmosphere into the device itself analyzes it

and pumps it back out. >> reporter: when shopping for a c.o. detector, make sure it is undler underwriter laboratory and then there's this combination smoke alarm and c.o. detector with a ten-year warranty for about $30. >> it's the cheapest insurance policy you'll ever buy. >> reporter: a dangerous level is anything above 30 parts per million. >> it's the shortest exposure time that is going to get you. >> reporter: symptoms are headache, nausea and fatigue. new construction requires a hard-wired and battery backup detector and there must be at least one on every level of the home especially near the bedrooms. >> it is really the only way you can detect the presence of carbon monoxide. >> reporter: test your detectors with a simple press of a button. like smoke detectors, you should test c.o. detectors once a month

and replace the batteries twice a year. they could save your life. in upper marlboro erika gonzalez news4. so you know what the powerball jackpot ended up being tonight? >> what? >> $564 million. the numbers have just been drawn. i'll give you five seconds to get your tickets. there they are. >> want me to check yours while you read them? >> i already have and you might as well tear them up. 25 11 54 13 39 and the powerball is 19. i didn't get even one of them. >> i got one number. yeah baby. >> but it's not powerball, is it? >> no. >> even if you didn't win, even if you didn't win, we invite you to let us know what you were dreaming of doing with the money. >> just keep ripping them up. >> yeah. >> or you can just do this if you want to. that might be just as good.

>> i keep making my dream last a little longer. my tickets are at home. >> maybe you won. >> maybe i'll be here tomorrow, maybe not. >> no your husband already knows where they are. >> he'd be calling you right now. >> that's exactly right. that's exactly right. i'll tell you what you're going to want to do tomorrow. if you've got that kind of cash you're going to want to go -- go down to southern -- south america, southern portions of africa somewhere way down in the southern atmosphere. for us it is going to be cold out there. and we're talking about some bitter arctic cold. the coldest air we've seen so far this queeryear. winds are out of the south at 7 miles per hour. that's still a warm wind right now. look at the numbers. 42 in petersburg west virginia 34 manassas 35 in annapolis. we're on the mild side of this year and man we're going to be going down big time. storm team 4 is picking up a few

flurries near the baltimore region. that's with one little front. that's a warm front that's moving on through. the rest of the this though look at where this air is coming from. straight out of canada follow this all the way down and this is the cold front that's going to move through tomorrow. so we have our first shot of brutal arctic air during the day tomorrow. it will come after around noon tomorrow. you're going to walk outside and everything is going to be fine early tomorrow morning. don't forget the coat. don't forget the gloves the hat, the scarves. by the time you leave work you're going to be needing those as you make your way home. trust me. that's shot number one. shot number two comes on saturday night into sunday. this cold air travels all the way down towards the keys believe it or not. look at the feels like temperature. this is 32 in d.c. 32 manassas cold but not bad. look what happens around 5:00. 14 in mar continuesburg, 13 in

winchester and by 11:00 tomorrow night, 4 in washington 3 in martinsburg and it stays that way through friday morning. windchills between 3 and 3 below zero. we're really talking about colder air. that's between the winds and the winds gusting. if the winds are gusting, we get down below 10 or 15 below zero. even around noon on friday. we're still on the single digits to the low teens. so yeah we've got big-time cold air making its way through here. 40 degrees with falling temperatures maybe flurries or a quick snow shower. high of 28 on friday. again, light snow likely on saturday with a high of 42 and then on sunday 21. we're even colder on sunday. i think windchills on sunday may stay below 0 all day long in most areas, especially you folks

just back to the north and west. low temperatures monday morning will actually approach record levels. yes, we're talking about big-time cold. we have a couple chances of snow but nothing too big. the cold is in store today. >> everybody plan warm weather getaways for the holiday weekend -- >> really smart. >> smart people. >> thank you doug. sports is next. wild

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no matter how many times you play them you just can't beat them? >> i don't know what it is but

the wizards had a chance to win it but just couldn't get it done. they have lost seven of the past eight against the raptors. this one, a back and forth affair that's nick with the steal. easy dunk the other way. things were looking up for the wiz. alley-oop, wizards up by 10 at that point. but toronto would come back. williams to his partner. williams had 27 tonight. two minutes left. hit just one three-pointer and that was it. game time. up at 93. wall had 21 tonight. raptors would take the lead. wiz have one more chance. it's wall. shooting. just a little too strong off the back iron. wizards lose 95-93.

the last time they won a national championship it was 1992. still, there's no love lost between these two teams. college park was holding their breath. maryland head coach trying to make his own legacy. let's pick this up second half down one, driving and then turns and no problem there, drops it and game would remain close. maryland up 1. wide open for the three. it's a four-point lead but indiana would come back. ferrel says i can shoot the three as well. tied the game up at 57. nice move. final seconds now, two-point game. indiana looking there, yogi ferrel misses a three-point shot. just can't get it done.

maryland gets the win. 68-66. great win for them. to the tar heels, justin anderson number two, virginia against mc state. nice move. shot off, mike tobey with the rebound in the ground there. game tied at 25. tied at 33 here. dishes to anthony gill. virginia took the lead there. held it until the end. 51-47. down to richmond hosting lasalle, weber out for the season with an injured knee. let's pick this up. late second half missed shot long rebound, jordan price went deep. no problem. 34 points for him. game goes to two overtimes and driving scoring with the finger roll with la salle with the

upset. over to pittsburgh taking on duquesne tonight, the team falling behind early but a little hope last first half. you don't want to be 6 footie freshman from japan. derek pulls it up and duquesne though with the win. 78-62. a couple other scores tonight, george mason loses to davidson 92-71. and catholic over goucher. and ryan clark has

>> steve: from studio 6b in rockefeller center in the heart of new york city, it's "the tonight show starring jimmy fallon." tonight, join jimmy and his guests -- hugh grant charles barkley, comedian kyle kinane