alison: a 14-year-old boy stabbed to death. the investigation happening now. plus, defaced. who is admitting to covering cosby's face. our topmay be invading security leaders, next. from abc 7 news, this is a

breaking news alert. alison: in prince george's county, crews are on the scene of a house fire in riverdale. a short time ago firefighters were evacuated from the building because of dangerous conditions. the pg county fire department says this is the seventh fire they have fought today. no reports of injuries at this time, but stay with abc seven for updates. it went from a, a 14-year-old boy murdered, a second teenager rushed to the hospital. jonathan: tonight we are learning more about the victims and what led up to the stabbing. tom roussey has the latest. tom? : this teenager who was killed was only a high school freshman. the police believed it was his mother's boyfriend who did it. the police spent much of the day going in and out of the building, focused on what happened on the second floor and that apartment. it was something decade easily

be heard by the folks living in the apartment above. >> it woke me up. it was really, really loud. m: a little after 7:00 in the morning, alexis black heard chaos in the apartment below her. >> it was verbally loud. you could hear them screaming. tom: she had no idea how bad the fight was until the police arrived. n mason was keyshau pronounced dead at the hospital. his grandfather said he was stabbed in the chest. >> it's tragic. that's my best friend. tom: mason was a student at potomac high school. they did not know what had happened until an announcement late in the day. also, a letter was handed out to students. >> it's really sad. a lot of people were crying. time: the police say --

tom: the police say that mason was killed by his mother's live-in boyfriend. his younger brother was stabbed in the shoulder. his injuries are not life-threatening. prince george's county police a that crawford will be charged with first-degree murder and dttempted first- an second-degree murder as well. tom roussey, abc 7 news. jonathan: america's top spy hacked. the most surprising part, who did it. ahead of the cia's private e-mail account and the person response ability for doing it, a high school student come angry about the plight of palestinians. he has been leaking social security numbers on twitter. it does not look like classified information was compromised. the fbi is now investigating whether the hacker got into a

private account of the secretary of homeland security. today, sunny and cold but milder temperatures return the rest of the week. brian van de graaff is here with the outlook. sounds like it will warm up nicely. byan: it will be warmer tomorrow afternoon. live from the belfort furniture weather center, it was cold, 37 degrees downtown. right now 48. the wind out of the south southwest that 10, keeping the temperatures from falling as far. culpeper, manassas 39, 42 frederick and andrews. tomorrow, low 40's, lots of sunshine. the highs tomorrow will peak near 70 degrees. alison: it is what everyone is talking about -- bill cosby's bowl at ben's chili

defaced. somebody put the image of kim jong-un over him. tonight we found out who is admitting to it. jay korff has the bizarre details. jay? jay: alison, the poster of north korea's notorious leader was once covering bill cosby's face. it has been taken down now and we were there when it happened. northeast --owl in northwest d.c. monday. >> it was interesting. jay: somebody plastered in image of kim jong-un on top of a mural of bill cosby. the iconic comedian accused by dozens of women of sexual assault. >> it's sad that happened. early monday evening, an artist took down the image of kim jong-un. artistow the original

who painted bill, so i thought it was disrespectful. when allegations against cosby surfaced, they declined to remove the image of one of their most famous supporters. they are not talking about the defacement, but one owner thanked him. >> she said, thank you. i guess she is impressed that somebody did it on their own. artist took credit for the irreverent form of public art, sing on instagram kim's chili bowl, people can celebrate in jubilation the great leader is now on their wall. beast recently interviewed the artist and wrote his images have popped up in other places in washington,

d.c., in fact, one down the street. he is trying to expose and satirical fashion the human the northrors of korean leader against his own people. jay korff, abc 7 news. jonathan: one way to get attention. bill cosby is the center of a "ebony" magazine cover photo. the image is of secured by shattered glass. the portrayal of his recent fall from grace has been the subject of praise and ops the nation. he stands accused of drugging and attacking dozens of women in so far faces no criminal charges. alison: an iconic sign is coming down. tomorrow, "washington post" side will come off the building on 15th street. the old sign will move to the new headquarters and will be inside the building. jonathan: convicted killer and former olympian oscar pistorius

is out of prison, released today, one day ahead of schedule. he was put under house arrest. he served just one year of his five-year sentence. the month, they approved parole supervision house arrest. will he or won't he -- that is a question lots of people are asking. as president joe biden says he is close to announcing whether he will run for the white house, sometime this week. about whatready buzz his choice will mean in the high-stakes contest. roz plater has the details. there are reports the vice president may be meeting with advisers tonight and his team is setting up interviews with potential campaign backers. all of washington is hanging on vice president joe biden's every word. will he or won't he run for president?

political watchers believe in announcement is a minute. he said something, but was this a swipe at hillary clinton? vice president biden: i don't consider republicans enemies. they are friends. clinton: in addition to the nra, the health insurance companies, the drug companies, the iranians, probably the republicans. roz: and was this comment a shot at bernie sanders? the andsident biden: powerful are not a problem. roz: sources say that biden has been calling influential backers and the head of the firefighters association said he would like to get that organization support if he runs. a new poll showed that bill bought it -- joe biden would be trailing both hillary clinton and bernie sanders, and republicans are losing patience.

why has biden taken so long to decide? those close to him say he is still mourning the loss of his son, bo. >> the grief is just stunning. roz: the conventional wisdom is we could hear as early as wednesday, the latest probably this weekend. roz plater, abc 7 news. a big visit to the white house for a teenager from texas. i commend mohammed was thrown into the national spotlight this year and he brought a homemade clock to school and got arrested because it was mistaken for a bomb. was neverr-old charged. his story made headlines across the country. he attended an astronomy event at the executive mansion tonight which brought nasa officials and scientists again or for a night of stargazing. how did this happen? president obama tweeted last month, "cool clock, want to

bring it to the white house?" jonathan: still ahead -- attacked by an aggressive owl. new footage and a warning. cuton: and hundreds of apps from the itunes store, eliminated for your security. >> i thought under the streetlight. jonathan: the 7 on your side need your help to track down the owner of a mis

new developments and a weird warning for runners. an aggressive owl is still on the loose. he is attacked at least four runners on the capital trail in bethesda, and the national park service has video. you arerther notice, urged to avoid long ponytails and using the trail at night. jonathan: lots of us depend on

online reviews for products. amazon is going after people who reviews. more than a thousand people are being accused of being paid to give false reviews on the site. the lawsuit targets those who promise fake review services in an online job market. amazon is using artificial intelligence to mixer that you see the most authentic reviews. removed more than from itunes. software inside was designed to record e-mail from users. no details on which apps. when "top chef" returns in december, the show chose three d.c. chefs to compete. three of them are on the 13th season.

se hear that chef jose andre will be making an appearance as well. jonathan: 7 on your side is flipping the script, hoping that you can help us. dennis avery, on the left, is a custodian at glebe elementary in arlington. he found a wedding band at the school after a big event and turned it over just in case some but he claimed that, but nobody came forward. the school gave him the ring back. she is theend, iris, romantic, she convinced him to find the owner instead of taking it to the pawn shop. i had lost that reigning o'er my husband lost the ring, i would have loved getting it back. that was subtle. she is adorable. thompson contacted 7 on your side, hoping somebody with see the ring and claim it. we have put it on our website as well, wjla.com, so hopefully

this will have a happy ending. alison: what a lovely couple. jonathan: and you know somebody will claim it and she will say, see? alison: oh, really? we have some warming up coming. brian: back into the 70's, mid-70's midweek. we do have some chilly nights. , frosty thistburg morning. it was 26. 44 right now. the color for our friends to the west, a beautiful sunset. the skies were clear, making for a cool evening. the temperatures across the area continue to drop. another cold night headed our way, temperatures tonight in the 30's and 40's. early yesterday we were in the 20's and 30's, so a little warmer. it will still be chilly.

tomorrow, back towards 70 degrees. wednesday and thursday we keep it warm. later in the week, another cool push moving in and time for friday, but not as intense. , 49t now, 42 andrews manassas, 37 culpeper, 43 luray. the good news is the wind is out of the south southwest, so it helps a little bit. with clear skies, a little bit of a breeze, that generally allows us to really cool off. the ohio valley, no big deal, very cool start. up.ill be chilly, bundle through the day, layers, because by the afternoon it will be warming up, pushing 70 degrees tomorrow afternoon. the end of the day wednesday, even warmer, mid-70's. mid-seventies thursday. a nice stretch of a couple of days. early in the morning it will be

call. high tomorrow, 70 downtown, 69 andrews, leonardtown 67, manassas 71, leesburg low 70's, 71 hagerstown, 72 winchester. , tuesday,ouple days wednesday, both featuring mostly sunny skies. thursday, the next frontal system swings through. as that happens, there could be an isolated sprinkle later in the day, the temperatures dropping. tomorrow, as you start tuesday, it will be chilly, early morning temperatures probably in the mid 30's western suburbs. low 60's midday, mid 60's afternoon. friday and the weekend, fairly comfortable but cooler. sunday, the marine corps marathon, 30% chance of showers. that will be in the 50's. through the day, the temperatures will get near 70 degrees.

night, the last chilly then things rebound nicely tomorrow afternoon. alison: we like that, sounds good. kind of chilly for the redskins lately. jonathan: can you imagine the locker room of late? erin: you know who could be on the hot seat -- jay gruden. if you thought it sounded like gruden was making excuses for kirk cousins's yesterday, you are not alone. [ female announcer ] business travel isn't just about the going.

it's also about the going home. and being connected all along the way. whether you're working or recharging, do business travel on your terms. acela. take off. >> and now the toyota sports desk, brought to you by your local toyota dealers. littleruden: also a windy and a lot of pressure on him, really. there are a lot of things going on pre-snap he has to deal with. erin: that was jay gruden sunday, rattling off the list of

factors that could your but it to kirk cousins' two interceptions during sunday's loss to the jets. that is the fourth time in six games cousins has thrown multiple picks. when asked if he worries that his explanations can be interpreted as excuses, gruden clear the air today. coach gruden: i'm not trying to make excuses for anybody. it was not good enough for everybody. there was not anybody in the locker room who played good enough to win the football game sunday. i'm not making excuses, i'm not trying to baby anybody. i'm trying to get the team ready to play the tampa bay buccaneers moving forward and get this thing back on the right track. talk about getting them ready to play on the third quarter because that has been a stumbling block, and it's difficult to pinpoint why washington has been outscored 46-3 in six third quarter's.

sunday, jay gruden watched his players below the halftime lead and lose to new york. earlier tonight we asked terrel young why the third quarter has been such a nightmare. >> i don't know what it is coming out of the tunnel. we just have to find the drive. being a professional athlete, if you find the drive, you're a problem because it's arty supposed to be there. you have to motivate yourself and just go up there and play. we just have to finish games. that's what were not doing. erin: the michael oxley era officially begin saturday when the terps go to school with old school. these are 1961-inspired uniforms, the same design from ever victoryrst over their current big ten rivals, penn state. he will wear the uniforms at m&t bank stadium, the 39th meeting between the teams, but i'm

guessing that was not a 1961. that looked like superman. the eagles and giants playing monday night football, the the fourth 27-7 in quarter. and the blue jays just beat the royals in game three of the alcs. that series is now 1-2. jonathan: you know if the terps win, they will continue wearing those uniforms. regattacoming up -- a unlike no other.

jonathan: a famous mural of bill cosby defaced. arlington couple searching for the owner of a found wedding band. and the forecast and more on our website, wjla.com. alison: this may be the only regatta with pumpkin boats. gianttants grow their own pumpkins, cut them open, and toss them in the water. some of them weigh 1500 pounds. the contest is made more fun by

dressing up, of course. there is a specific science to carving a floating gord. jonathan: cap'n crunch. alison: that is cute. jonathan: the wind will hold him back. not going to win with a hat like that.

(man) hmm. what do you think? ♪ (stranger) good mornin'! ♪ (store p.a.a.) attention shoppe, there's a lost couple in the men's department. (vo) there's a great big un-khaki world out there. explore it in a subaru crosstrek. love. it's what makes a subaru, a subaru. alison: it will be nice to have

warm weather. brian: it will, but it will be cold in the morning. it will be 70 in the afternoon. alison: put the names of the coats. brian: cooler by the end of the week. jonathan: if there is any frost,

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and now abc's "jimmy kimmel live." >> guillermo: jimmy, so beautiful here. >> jimmy: this is my favorite spot. >> guillermo: where are we? >> jimmy: we're in the greatest borough in the world, guillermo. you know what a borough is? >> guillermo: a donkey. >> jimmy: yes, but no. we're in brooklyn. brooklyn, new york. >> guillermo: hello, brooklyn, i love you! dicky: from brooklyn, it's "jimmy kimmel live!" tonight, bill murrary, misty copeland and american ballet theatre.