sprays for mosquitoes to guide against zika and west nile. a local woman charged $1,000. now our susan hogan is finding out who is behind it. a memorial is growing tonight at a local 7-eleven store where a clerk was shot and killed. >> police believe it was a robbery gone wrong, and they're hoping a backpack will lead to clues about the killer. news4's shamari stone live for us in clinton, maryland with the latest tonight. shamari? >> reporter: good evening, jim and angie. prince georges county police are searching for the man who killed the 7-eleven employee. behind me is a makeshift shrine to the man the entire community called a nice guy. tonight keith turner is his favorite 7-eleven employee was shot and killed during an attempted robbery saturday morning. >> you just asked the guy for what you wanted and he would get it. he didn't have to kill this guy for it. he took an innocent life. >> reporter: they received new surveillance video from a nearby comfort inn. no one was hurt during that robbery. >> this guy had nothing better to do than to come out and kill somebody at a 7-eleven. >> police were called to the 7-eleven around 5:00 in the morning. 31-year-old taiwo odunole was on the ground, suffering from a gunshot wound. friends and family were sad. >> very sad. he had only been here a couple months and he was such a sweet gentleman. i would come in here in the morning with my >> just to explain the process of the report, we reached out to his brother and people at the hotel who did not want to talk. they said we should talk to police. police urge anyone who has any information about what happened, they should give them a call. they are offering $2500 for anything that leads to an arrest and indictment in this case. people who live out here tell me they plan on having a car wash to add more money to the reward. people will bring their cars here, wash them, raise money, and they hope that can go to the reward so that in turn can lead to more tips which would lead subsequently to an arrest. live here in clinton, i'm shamari stone, news4. more officers are on patrol around the key bridge tonight after an attempted sexual assault on the ar miss advertise side. a 27-year-old woman was walking on the bridge to get to her home in the victim was unable to fight back and free herself. the man walked back towards d.c. it is suggested to walk with another person if you plan on using that bridge late at night. metro transit police want to know if you know any of these three men. this happened sunday around 6:15 at or near the station. the robbers got away with a cell phone. family and friends pay their respects tonight to the son of the late marion barry. funeral service for christopher barry were held this evening. d.c. maryland yo marion bowser thompson were among those in attendance. they told news4 this is not the end of the barry >> bartthe barrys will live on because people will remember the good that the barrys brought to this community and this city. >> reporter: christopher barry died earlier this month from an apparent drug overdose. he was 36 years old. news for your health tonight. two senior senators are demanding that a drug company better explain how the price of ep epipen has more than quadrupled. the life-saving drug is four times as much today. it reduces swelling and reopens airways after severe allergic reaction. now they're asking the cdc to investigate the drug maker. the judiciary committee wrote them demanding to know how much they paid for advertising this parents that feel the pinch. senator grassley says many of the children who are prescribed epipens are covered by medicaid, therefore, the taxpayers are picking up the tab for this medication. while myron hasn't responded to today's letters, they have made improvements to the epipen and the price reflects that value. in the newsroom, i'm chris lawrence. to politics now and to questions about whether donald trump has changed his plans to deport all undocumented immigrants. this weekend trump's campaign manager said the plan was still tbd, to be determined. tonight in ohio, trump still vowed to build a wall but also used illegal immigration as a way to court minority voters. >> poor hispanics and african-american citizens are the first to lose a job or to see a pay cut when we don't control our borders. so true. a special prosecutor to investigate whether hillary clinton gave special access to clinton foundation donors during her time as secretary of state. those claims came from newly released clinton e-mails cob ta -- obtained by a conservative watchdog group. they claim major ceos were able to set up meetings with clinton's top aide. nearly 2,000 additional e-mails were recovered from clintclinto private server. those e-mails were want panot p the investigation. people can check their mail to see if they have the right to vote in november. gov mcauliffe said he was doing good on making sure to restore ex-felons' voting rights. now ea individually. and so far 13,000 virginians have had their voting rights restored. >> a part of life, and once you've done your time and you paid your fines and you get pushed back into society, you should be part of society with all the rights that are given to society. >> many republicans argue mcauliffe's veiled attempt at stuffing the polls with democratic voters in november. president obama travels to louisiana tomorrow to see the aftermath of last week's deadly flooding firsthand there. nearly 3,000 people will wake up in shelters. another 100,000 are counting on federal disaster aid. the president signed a disaster declaration while on vacation last week. some criticized him for taking so long to get to the disaster zone. today the white house pushed back saying the president's thoughts have been with louisiana residents from the start. most clicked-on stories in the washington d.c. app right now, more people are now testing positive for west nile virus. crews sent us this video. this is as crews were spraying for the biting bugs in gaithersburg as well as kensington. they are also reporting one person in western maryland got infected. it is the first case of west nile virus in the state this year. and it is the spread of the zika virus that's raising a concern in the state of florida. today the governor asked for more emergency funding and pushed congress to help out. the start of the new school year is only adding to the urgency. students there spraying down way lot of bug repellant before heading into class today. the fear is that a child would come home infected and then the fetus could pass the virus to an expecting stop rubella 50 years ago. >> if a pregnant woman got infected with rubella, the consequences to the baby could be profound. >> florida's department of health confirmed 41 home-grown cases so far. there are over 2100 travel-related cases nationwide. students will head out to the bus stop tomorrow. they'll join people in d.c., frederick county, maryland who went back today. drivers, remember to keep an eye out for stopped school buses and children in the sidewalks. and remember, nbc4 is working for you in the county to try to get the year started out right. we're holding our annual backpacks for kids drive at federal credit union's kingstown branch in to find it, just search backpacks 4 kids. your computer is suddenly frozen and telling you you've been hacked. it turns out it's a scam designed to take your money. tonight news4's steven hogan finds out who is behind it and tells you what red flags to look for. plus more sponsors baling on ryan lochte tonight. how much his embellished story about a robbery could cost him in his lifetime. we've been waiting for this kind of weather. it hasn't been this nice since june, but i'm tracking the tonight prince georges county fire investigators are trying to figure out what started this massive fire at a warehouse that took 60 firefighters to get this 3-alarm blaze under control here at an abc supply company in gaithersburg. firefighters were concerned the blaze would reach the combustive supplies in the warehouse, including foam insulation that's toxic when it melts. but thankfully the fire was contained to an open logged dad dock. no one was hurt. it's almost enough to make you cringe. ryan lochte may lose as much as $10 million over his lifetime because of his exaggeration in rio. four sponsors dropped the swimmer today. speedo was first, a skin care company. in addition to losing sponsors, lochte could face sanctions from usa swimming. meanwhile some other u.s. olympians just back from rio will be on the "today" show tomorrow. the final five from team usa gymnastics will be live on the plaza right after news4 today. nbc4 responds recently told you about a computer tech scam. tonight we have some new information about the scam we exposed and what our team found was surprising. consumer reporter susan hogan joins us with what she's learned. >> your computer is suddenly frozen and a pop-up message warns you've been hacked. a virginia woman paid $300 to get it fixed. but what she didn't realize, it was all a scam. how we know? listen to this. it happened when diane hayes was on line shopping. warning messages and blaring fr a loud, loud noise and i couldn't stop it. i thought, what is happening? >> reporter: the pop-up message, she'd been hacked, so she called the toll-free number on the screen. what diane heard next frightened her. >> your computer has been compromised. you may have been hacked into. your e-mails and your entire system. and i said, oh mirks wo, my worn help me? they said, yes, absolutely. >> diane immediately agreed to pay $300 for tech support. but as soon as she hung up -- >> i said something is not right here. >> reporter: she realized she had probably been scammed. so we called that same toll-free number and the person who answered claimed to be john located in the united states. >> we provide technical support for all the devices. >> we asked if his services are legitimate or just a big scam. >> no, sir, it's not like that. we are not doing that type of business. >> reporter: but it turns out it is a scam. john wasn't in the uni isn't john. we know this because we tracked down the owner of the company by phone. he's actually in maryland. he apologized to us and claimed unethical employees from india are to blame and they're the ones pushing those pop-up ads to lure unsuspecting customers like diane. >> it's pervasive. and it's not just in the u.s. >> reporter: federal investigators say it's a growing scam that hundreds of thousands of people fall victim to every year around the world. and anyone could be their next target. >> we have not seen any real targeting because they cold call mass amounts of consumers, and it's just whoever will take the bait, essentially. >> reporter: and the ftc has recordings to prove it. >> i see something that says warning and something that says error. >> jesus, did you say some warning? my good luck, madam. it would be my you, please do not try to click on any of them, okay? >> reporter: after we tracked down the tech company diane called, the owner took down the website and the toll free number disconnected. the red flags of becoming a victim, be skeptical of computer pop-ups or telephone calls warning you've been hacked, and only use tech experts from companies you know. i'm susan hogan, news4. okay, well, let's talk about the weather today. the first day of the work week and what a beautiful one it was. >> it delivered. we have been sweltering for weeks on end, and finally -- >> i know, right? >> it's funny how quickly the tables turn when the weather is nice. everybody then loves the meteorologist. our high today was 85. tomorrow pretty much the exact same kind of weather. we had a nice breeze today. it won't be as breezy tomorrow but still plenty of sunshine. humidity levels are low again. this is the best weather we've had in school, feeling very much like back to school weather. not only that, but it's going to be dry in our weather for days on end. good idea to get the car washed. we're really not talking about any rain over the weekend, but talk about the weekend, it is looking hot, around 90, but thankfully not too humid for whatever your plans are. currently temperatures are coming in at the 60s and 70s, washington one of the warmer spots at 75. you can see a lot of the suburbs already down in the low 60s. it will be a fabulous start tomorrow morning. 7:00 a.m. will start off at 67 and that's here in the district. the suburbs will start off around 60 degrees, even some upper 50s in areas like frederick and gaithersburg. annapolis starting off the day at 68, annapolis at 60. a little crisp. by lunchtime it's gorgeous, low humidity, around 85 and we'll hit that at 4:00 in the afternoon. it's windows open weather tomorrow once again. 8:00 p.m., we're at 78 degrees the only downfall, i think, to the forecast is the pollen report. if you notice you're a little stuffy, you're sneezing more, your eyes are itchy, it's probably the ragweed out there. i have more on this on my facebook and twitter pages. unfortunately, no rain in the forecast to wash out that pollen count. but the tuesday outlook looking good. best of luck to the students at prince georges county starting school tomorrow. exercise morning, noon, night looking perfect. lunch comfortable. dinner out, temperatures in the 70s and 80s. if you're heading up to baltimore tomorrow for the nats and o's game, first of all, good luck, o's. you might want to grab a sweater. it might be a little chilly by the last out. it's nice looking at thursday and friday. it does start to feel a little muggy out there but nothing we can't handle. wednesday 88. friday a high of 92. there's your weekend. it's looking dry and partly sunny. highs around 90. it looks like the hottest day in our forecast next tuesday with a high of 96. a lot of people say does this mean we're done with the extreme heat? not necessarily, but i don't think we'll have what we've been dealing with these last few weeks. >> thanks, amelia. coming up, in the battle of the beltways, one jumbo mistake cost the nats a young pitcher. sports are next, but first, here's jimmy fallon. >> hey, guys, we're back with new shows. pro golfer jordan spieth is here. but we have robert let's start over here compwith this aluminum bed.eds. you put your toolbox up here... that's a big hole. that is unbelievable. now let's check out the roll formed steel bed of the silverado. same spot, same empty toolbox. took it way better. the steel held up. this summer find your tag and get 16% of msrp cash back on select remaining 2016 silverado pick-ups in stock. that's over $7,500 cash back on this chevy silverado. find new roads at your local chevy dealer. but how did we end up here? his mom thought he had the flu he was covered by the meningococcal meningitis vaccine he had received. until 2014 there were no vaccines for meningitis b in the u.s. now there are. while uncommon, meningitis b can lead to death within 24 hours. trumenba is a vaccine for 10 through 25 year olds to help prevent group b meningococcal disease. trumenba should not be given if you had a severe allergic reaction after a previous dose. most common side effects were injection-site pain, fatigue... headache, muscle pain, and chills. ask your doctor or pharmacist about all the risks and benefits of trumenba and tell them if you've received any other meningitis b vaccines. meningitis b can be spread by typical sharing like... a drink... a spoon... a kiss. it all started here... it might have been prevented with trumenba. ask your doctor or pharmacist about trumenba. battle of the beltway's game 1 did not go naturally, but it was a good game. >> it was a very good game that was tight from start to finish. a.j. cole came in last minute and did his thing. game 1 of the beltway series goz to the orioles. it was suppos a.j. cole stepped in and he wasn't too bad, however, one of the few mistakes came from the best power hitter in all of baseball. steven straussberg forced to watch his orioles in camden yards. nats up a run. not anymore. jonathan scope changed all that. this ball just stayed fair. the orioles number 6 comes through. that deserves a fancy handshake. the nationals andy rendome dillon bundy deep to left center here. no question about this home run. anthony rendone 16 balls on the season. bottom of the fourth. mark trumbull leaves everyone in the majors in home runs, and that is a two-run homer, four runs allowed by a.j. cole. trumbull has 38 home runs on the season. later in the 8th, daniel murphy on second, no outs. a rare base-running mistake by daniel murphy right there. the orioles, they would get out of the inning. you do not want to see this man right here on the mound with a baseball. zach britain, closer for the o's, he has been outstanding. birds hold on for the 4-3 win. despite the loss, the crow >> he did a great job. saved the bullpen. a bullpen that's been taxed starting in colorado. i thought he did a great job to do that against that lineup and this ballpark was impressive. >> we really made one mistake tonight, and that was trumbull. i don't know where the ball was supposed to be, but it was down the middle and trumbull hadn't been missing them. the redskins were back at work today. running back matt jones won'ting playing friday night against the bills or in game 4 against the buccaneers. jones had a separated shoulder injury that he suffered this past friday. in a week on monday night against the pittsburgh steelers. kirk cousins also getting ready for new york. cousins should get plenty of work this week. the quarterback understands the pre-season is valuable to a certain extent. >> i don't know that i need play in four, but to play in some is very helpful, and i think that's what this friday night will be all about, is getting that rhythm so that when we do go out against the steelers on monday night, you feel like you've been there and you're ready to go and it hasn't been too long since you last took a snap in the stadium in a game-limas mont game-like atmosphere against a different opponent. we want to be sharp and have a different feeling coming off the field so we can carry over to week 1. >> you can watch the most important pre-season gam righte big visit today for kids at children's medical center. katie ledecky stopped by. she answered questions about rio and encouraged patients to reach irr the dreams. one day a rider made a decision. the decision to ride on and save money. he decided to save money by switching his motorcycle insurance to geico. there's no shame in saving money. ride on, ride proud. geico motorcycle, great rates for great rides. [ cheers and applause ] ♪ >> 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 -- robert de niro, jordan spieth,