i will say that today the prayers of the american people are with the family of a devoted and courageous journal is, steven sotloff. >> the first comments from president obama on the beheading of a second u.s. journalist. coming up, his message to the terrorists who carried out this brutal act. and right now residents and businesses are dealing with a major water problem in parts of prince george's county.

a news 4 crew was the first to let one woman know the water she used to brush her teeth this morning should have been boiled first. and back to work. the jury in the corruption case of bob mcdonnell and his wife are deliberating for a second day today. good morning, everyone, welcome to news 4 midday. i'm barbara harrison. we begin with that developing story in prince george's county. a boil water advisory is in effect for 11 neighborhoods while crews repair a 24-inch water main break in hyattsville. megan mcgrath joins us live to tell us what people are saying. megan, good morning. >> reporter: good morning, barbara. we are on baltimore avenue, the main drag, the commercial drag through hyattsville. lots of restaurants here, including elevation burger. many of these restaurants are opening for lunch. however, they're not going to be using ice, there are no fountain drinks because those machines use water. they're bringing in plenty of bottled water instead and they're also boiling water when

needed. art fields boils water in his hyattsville home, but he doesn't plan to do much with it. he and his dog, brooklyn, will be sticking to the bottled stuff for now. >> the only thing i can do is shower with it. everything else i have to do i'll use bottled water. lucky for me i'm a bachelor so i'll eat out, but not in the neighborhood. >> reporter: the boil water advisory comes after a broken pipe caused the water pressure to drop, increasing the risk of contamination. as a precaution, residents in 11 neighborhoods are being told to boil their water. it's a wide area, stretching from chillham to seat pleasant, from glen arden to hyattsville. about 100,000 people are affected. >> it's a pain to do but it's a necessary precaution until we know that the system is fine. any water for consumption brought to a rolling boil for one minute, let it cool and then use it.

>> reporter: add vigilante coffee, they're open for business, running completely off their supply of bottled water. >> okay for the moment. not too much longer, though. we'll need to go get more jugs of water for sure. >> reporter: as many scramble to stock up on bottled water, others are just learning about the situation. unaware, cynthia gossage went about her normal routine this morning. >> well, i brushed my teeth, i took a shower and i made coffee. >> reporter: make you nervous? >> a little. >> reporter: and it's important to say that wssc says there is no evidence that there was actual contamination. this is being done as a precaution because of the low water pressure. there are more than 45 schools in the area that have been affected. what we're told is that they are all open, business as usual, except the water fountains have been turned off and they have brought in bottled water for the kids and the staff. reporting live, megan mcgrath, news 4. back to you. >> thank you. and with temperatures expected to climb near 90

degrees today, d.c. leaders decided to close woodson high school in northeast because of an air conditioning outage. it is not far from the prince george's county line. all other d.c. schools are open as scheduled. definitely not a day to be without air conditioning, as you can see from this live camera. the sun is in and out of the clouds out there, but things are heating up quickly. tom kierein joins us with his first forecast add midday. good morning. >> good morning, barbara. welcome back, good to see you. the september heat wave that we've had the last several days continues today. not quite as hot as we have been. we're been in the mid-90s each day since sunday. today with the clouds around that has helped to hold the temperatures down but it is still very humid. that's a live view looking off to the west. few breaks in those clouds, a little sun trying to come out. storm team 4 radar not showing any rain. we had a few sprinkles earlier this morning and that is now long gone.

temperatures are into the low 80s in washington, nearby suburbs across northern virginia. north and west of washington it's in the mid to upper 70s, right near the chesapeake pay, mid to upper 70s there as well. a look at how much longer this heat wave lasts, a break on the way. that's coming up in a few minutes, barbara. >> thank you. we'll see you in a few minutes. now to a developing story this morning. the white house confirmed that the video showing the killing of american journalist steven sotloff is authentic. isis released the video showing sotloff's beheading yesterday. in the video a masked militant warns the president to stop air strikes in iraq. the president says he will not be intimidated. he's already ordered another 350 military personnel to iraq, increasing the total number of u.s. troops on the ground to 820. this morning in estonia, president obama vowed isis will not get away with murder. >> those who make the mistake of harming americans will learn that we will not forget and that our reach is long and that justice will be served. >> and about 30 minutes ago,

president obama boarded air force one. he is now on his way to a nato summit in england. news 4's angie goff has more on his overseas trip from the live desk. >> reporter: barbara, before boarding that plane, very stern words from the president to russia. during his visit to estonia, president obama said that he would send more air force units and aircraft to the baltics. his visit is a symbolic one at that, meant to address rising concern over russia's military intervention in ukraine. >> the challenges that most basic of principles of our international system, that borders cannot be redrawn at the barrel of a gun. that nations have the right to determine their own future. it undermines an international order where the rights of peoples and nations are upheld and can't simply be taken away by brute force. >> reporter: meanwhile, we are still getting conflicting reports on whether ukraine and

russia have reached any type of cease-fire, as the ukraine government first reported earlier this morning. this as the kremlin continues to deny any military involvement in ukraine. back to you, barbara. >> thanks, angie. and right now, jurors are back in the deliberation room deciding the fate of former virginia governor bob mcdonnell and his wife, maureen. the jury received 90 pages of instructions before going behind closed doors yesterday. the mcdonnells are facing 14 counts of corruption, including conspiracy, obstruction and bank fraud. they're accused of taking gifts and loans in exchange for giving political favors to former supplement company ceo jonnie williams. our northern virginia bureau reporters are in richmond and we will bring you complete coverage of the verdict whenever it happens. prince george's county police are investigating a homicide in langley park. police say a man was found dead in the 8000 block of 15th avenue just off university boulevard. we have calls into police and will bring you the latest information on nbcwashington.com.

also new today, firefighters are working to learn what sparked this fire at an apartment complex in the district. this was on g street in southeast not far from alabama avenue. some people ran to the balcony to escape the flames. they were trapped there until crews could get that fire under control. and right now, a news conference in charlotte. ebola survivor nancy writebol talking for the first time along with members of the group she worked with in west africa. plus, home depot looking into what could be a massive data breach. what you need to know to protect yourself.

developing now, an update is expected on a third american missionary doctor who has tested positive for the ebola virus. the doctor was treating pregnant women in a liberia hospital, not ebola patients. he's said to be in good spirits while he is in isolation. the doctor works for the same aid organization as nancy writebol, who is now ebola free after becoming infected in liberia. nancy writebol is speaking out about her ordeal. angie goff has more on that at the live desk. >> hi, barbara. the second american to contract ebola is getting ready to talk to the media right now. this would be her very first time. you can see that missionary nancy writebol and her husband

right there getting prepared to read a statement. let's listen in. >> caring for us and seeing that things would happen so that nancy could return to the u.s. i also want to express thanks for our friends there in liberia, doctors and nurses. >> we are listening to nancy's husband, david, speak. we are told that writebol herself, who is from north carolina, who had been battling ebola for weeks, she is going to read a statement coming up. she got that deadly disease while doing -- while treating patients who had ebola in liberia. now, this news conference comes a day after you mentioned, barbara, that another american doctor doing similar work tested positive for the disease. back to you. >> thanks, angie. meanwhile, american doctor kent brantly, who was earlier diagnosed with ebola, is now recovering. he gave his first-ever interview after the ordeal to matt lauer

on the "today" show. >> what i remember is that everyone i called began trying, sobbing, and i didn't shed a single tear. >> why? why do you think? >> i believe that in that moment god blessed me with that peace that's beyond understanding. i was so thankful that amber and the kids were not there. >> brantly was treated with an experimental drug at emory hospital in atlanta. he's sharing his story so americans won't forget the terrible outbreak west africa is experiencing. changes being made today. coming up, the store that will no longer sell you a pack of cigarettes. tom, tell us about the weather. >> it is still rather humid. you can hear the cicadas setting up a cacaphony of noise.

today home depot said it's still trying to determine if it has been hacked. the store says it's working with its banking partners and law enforcement to investigate a possible data breach. a cyber security firm discovered credit and debit card numbers used at home depot for sale online. this hacking could date back to

april or may even. that could make it larger than the target data breach which was only during a three-week period. with yet another retailer possibly hacked, more of you have concerns about the safety of your finances when shopping. richard jordan joins us live at the home depot in northeast d.c. with how to protect your money. richard? >> reporter: hi, barbara. this is something that just about anyone can do the next time they go to the store. experts say don't use your debit card, even if it's a debit/credit card. if it comes from the bank that has more of your personal information on it so instead you want to use a traditional credit card that comes directly from a credit card company and that will help keep your personal information safe. home depot customers could be the latest victims of a massive security breach. >> that can really mess people's credit up real bad. >> reporter: the home depot breach may affect more than the 40 million target shoppers who had their names and their

personal information stolen last year. target is installing new credit card machines at registers to protect customers, but consumer advocate ed merewinski says retailers can only do so much. you should use your credit card instead of the combination debit/credit card until banks make those cards secure. >> chip and pin is a more secure card. a chip changes the number for every transaction and a pin is something only you will know, so they'll know that it's the right card and the right person. the banks are at least moving to a chip card very soon, within the next year. >> reporter: home depot says the company is aggressively gathering facts, but in the meantime, their customers are left feeling vulnerable. home depot telling those customers if they do find that their card information has been compromised, they will contact them and offer them identity protection services. reporting live, richard jordan, news 4. >> thank you, richard.

today d.c. mayor vincent gray is heading overseas going to china. he's taking part in a ten-day trade mission. the mayor will celebrate the 33rd anniversary of the sister relationship with beijing. gray will join other leaders and push the world tourism federation to select washington as next year's host city and there will be meetings to discuss the way the two cities can form an economic and cultural partnership. later this month new jersey governor chris christie will make a trip to maryland. he will attend the fund-raiser for larry hogan. hogan is hoping to get some support from the republican party. he opted for public financing, which limits his own spending, but does not limit the spending of supporters on his behalf. hogan is running against lieutenant governor anthony brown in november. and for more now on the president's trip and his comments this morning about isis, we are joined now by mark murray, nbc's senior political editor. good morning. >> hey, good morning, barbara. >> this morning the u.s.

confirmed that that video that shows a brutal murder of the second american journalist this time, steven sotloff, is in fact authentic and the president spoke about it this morning. let's talk a little about what the president said. >> sure. what we saw from the president was very -- the volume of his rhetoric was ramped up and amped up, barbara. he talked about degrading and destroying isis. of course that was a lot stronger rhetoric than we heard from the president in his remarks, in his press conference on thursday, so i think that's one of the big takeaways. >> let's have a listen to what he had to say. >> they failed because, like people around the world, americans are repulsed by their barbarism. we will not be intimidated. their horrific acts only unite us as a country and stiffen our resolve to take the fight against these terrorists. >> so is military action against isis in syria still a possibility? >> i think it is. of course when you're talking about degrading and destroying a terrorist organization, that

means going where they are. and of course some of them are in iraq and there have been u.s. operations that have been taken there, but where the united states really hasn't gone yet is syria. there are some legal complications. does the united states need a war authorization for military force in syria. that's an open question. but clearly president obama's remarks today were very, very tough. >> the president is now on his way to a summit in the u.k. britain has already made a statement, its prime minister did, about the isis situation and what it plans to do. do you think we're going to hear more about isis when these two are together? >> i think so. of course this is kind of a european matter. many of these isis fighters have their home countries from europe. great britain apparently is the home to this particular isis militant who's appeared in these videos that have executed these two americans, so it's an american problem, it's a european problem. barbara, don't also underestimate how important the situation in ukraine is to the

nato meeting that's going on in wales. i think that that's going to be foremost on the agenda because that's even closer to europe. that's -- we're talking about eastern europe. so that's item number one but i guarantee you they'll talk about how to combat isis. the united states says we just can't do this alone. we can't just have european countries alone, this needs to be a worldwide effort to combat these folks. >> we will talk about this again, i'm sure, probably tomorrow as that summit gets under way. thanks a lot. for more from mark and the rest of the nbc news political team, check out first read on nbcnews.com. and right now montgomery county police are searching for a missing teenager who may be in trouble. this is 17-year-old charlotte chan. she went on a summer youth camp trip to tennessee and was supposed to return home on monday, this past monday. her family says it's been more than a week since they have heard from her. charlotte is from montgomery village. please call police if you have

seen her. a scary problem. an alexandria man cannot go in his own backyard because there's a swarm of hornets there. coming up, why there's absolutely nothing he can do to get rid of them. and your kids are back to school but your life just got a lot more stressful. do you agree with that? we might be able to help you out. stay tuned for some talk from our doctor in residence, our psychiatrist. first a look at what's hot on nbcwashington.com.

a swarm of hornets is pitting neighbor versus neighbor in fairfax county. john albert tells news 4 the bugs are keeping him from going into his own backyard in alexandria. the hornets cover a tree on his neighbor's property. the problem is john says his neighbor won't remove them. and when he tried taking matters into his own hands, that didn't work either. >> the pest control company could not do anything because they wouldn't allow the spraying of the tree on his property. my backyard, which is essentially a sanctuary, is a paperweight. it just doesn't seem fair. >> the homeowners association says there's nothing they can do because they're not responsible for individual houses. well, the white house is backing changes now in effect at your neighborhood cvs. starting today the drugstore is no longer selling tobacco

products. instead, cvs replaced cigars and cigarettes with nicotine gum and other products to help smokers kick the habit. the white house said cvs is sending a powerful example it hopes others will follow. the store also changed its corporate name also to cvs health. signs outside at 7700 stores will still say cvs pharmacy. well, today you can see a different view of the district. the basilica of the national shrine of the immaculate conception is opening its night tower to tours. the second annual event starts today and ends on friday. the national shrine says 1100 tickets were given out in less than 72 hours. the first public tours started last year when the shrine celebrated the 50th anniversary of the bell inside that tower. and right now, we're looking at temperatures in the 80s and they are on the rise out there. storm team 4 meteorologist tom kierein will be back with your first look at our seven-day

forecast. plus, the disappearance of 8-year-old relisha rudd. whether the district could have done something to prevent it. why the most extreme measures may not be the best in the fight against breast cancer. stay with us, w

check out this time lapse we put together. storms rolled in and out last night, bringing rain and lightning, but things will look different today, even though it

will be another hot one. i guess we're not going to see the same kind of weather we had last night. it was kind of scary actually, the sky got so dark. >> it really did and some dramatic clouds came rolling on through. we didn't really have a lot of damage, some isolated tree limbs came down mainly north of the metro area. now we just have clouds around and it is still quite humid. there's a live view from our storm team 4 capital camera overlooking upper senate park. and there you can see the fountain has been turned off it looks like and they have got the trees there still looking very green. here we are into september, but a month from now those trees will start changing colors. we've got quite a bit of cloudiness around. reagan national is at 82 and the dew point is dropping a little bit, down to 67. it was near 70 this morning. so somewhat lower humidity is beginning to move in as some weak high pressure is pushing in from the north and west. as it pushes in, we have nothing ow not immune to it. it's tough on the summer because

there's lack of schedule and it's tough when kids go back to school. i guess you can't avoid it. >> you think you've got it down and i think most parents are dancing with glee when they know the kids will be out the door. >> at least you get a break for a little while. >> so what do you say? what would -- is it the lack of sleep that makes things so difficult to get them out the door? >> there are so many factors. they're kids, they're not little adults. a lot of people think little kids should behave like little adults. they're not going to. their priorities are different. they don't care if you're running late for work, they're worried about playing on their game. but sleep is probably the most critical component here. most kids are not getting enough sleep. you've got to remember -- >> well, summer just ended. >> summer just ended, but even a month from now most kids are not going to get enough sleep, right? you've got to remember elementary school kids need 11 hours, middle school kids need 10 hours, high schoolers need 9