>> the three suicide bombers came from russia. police arrested 13 people with links to isis. and there are questions about whether the terror krel could have been detected before the attack. >> >> reporter: they are looking for more suspects and they raided three and 13 people have been detained so far. turkey has accused isis of carrying out the attack that was well-planned and executed and

could have been far worse if not for the security forces. based on the attacks of the prime minister and others, they arrived with back backs and guns. a bomb detonated curbside. apparently allowing the two remaining terrorists to slip past security and enter the terminal itself. a third attacker made his way to the upper level and detonated a bomb even though he was shot. and new images posted online apparently taken from airport cc-tv cameras. one shows the three attackers along with a video of one of

police officer. they were part of a russian-speaking cell and there was a russian citizen and turkish media reports say that they rented apartments in istanbul paying in cash three months ago. an upstairs neighbor complained about the noise and a chemical smell. nbc news, istanbul. a false alarm led to a lockdown at the military base that houses air force one, the president's plane. confusion led to tense moments. tracee wilkins has more. tracee? >> reporter: jim, this was a false alarm but we have covered and have seen across the country what happens when

his or her way onto a military base. it made for some very, very scary moments. without information, you know, it sends you into a safety mode. >> reporter: a contractor with joint base andrews describes what it was like when the report of an active shooter went out. >> we have to sit underneath our desk on the floor. >> reporter: people were taken out of the med ka facility, some with their hands up. there was no gunman adding to the confusion when the report was made of an active shooter. joint base andrews released a statement describing what unfolded this way. "joint base andrews was scheduled toon

active shooter exercise. however, reports of a real-world active shooter situation at the medical facility were miscommunicated before the exercise was able to begin. there was a misidentification of the security forces emergency services team who were conducting a routine inspection of the medical facility which caused the distress call." >> i thought the response was strong and solid so that's the good news. >> reporter: officials are not saying who made the call. >> because i think we have to take these things seriously when they occur and i'm sure that if a mistake was made here, they were not doing that on purpose. >> reporter: there was a lot of confusion shortly after that initial call was made and, of course, over the next few weeks we're he c

into why that was the case. tracee wilkins, back to you all in the studio. >> the false alarm is yet another reminder of why we are vulnerable to terrorism. steve handelsman is on the national mall with that part of the story. steve? >> reporter: thanks. pretty good crowd down here. it's going to get more crowded, of course, as the weekend moves in to monday. u.s. park police said today down here that they know of know special threats to the fourth of july festivities here in the nation's capital but they are still promising what they called a police presence like we saw today at andrew's. with our nation alert to the terror threat, tactical teams swung into action outside washington. the false alarm about an active shooter came from worker who is had seen people with guns. >> an unfolding situation at andrews air base. >> reporter: secretary of homeland security jey johnson

committee that in the wake of the attack on istanbul's airport, security is more intense at u.s. airports, at train stations and other transport centers across the country. in city centers, too. anywhere americans congregate. but on this fourth of july weekend, johnson said it is safe to celebrate. >> continue to go to public events but be aware and be vigilant. public awareness and public vigilance can and does make a difference. >> reporter: thousands will fill the national mall. today, the mall was mellow. police are planning to keep it that way. the worries, say experts, is istanbul and the attack in order inspiring a lone wolf. but detecting who that might be is nearly impossible.

it will now allow transgender individuals to serve openly in the u.s. military. that will end one of the last bans of the armed forces. there should be no concerns despite senior military leader who is say more time is needed to work through the new policies. new details about a traffic stop in montgomery county that led to a police officer firing a shot at a man who had a knife. we're told the officer pulled the guy over for speeding on the icc this afternoon. when they stopped, police say the man walked towards the police car with a knife in his hand and refused to drop it. the driver was not hit and the officer was able to take the man into custody. and

released the name of the employee who allegedly yanked a chunk of hair from a toddler's scalp. lisa vaughn worked at the kids r us learning center. parents of the 1-year-old boy went to the school demanding answer after the child came home with a bald spot. they were told another child do it but surveillance video showed a different presidential politi. he blasted massachusetts senator elizabeth warren. donald trump spoke about warren's heritage. >> she used her native -- so-called native american status to get into institutions and to help her career and i always say that i have more native american blood in me than she

>> elizabeth warren has said she has native american ancestries. questions were first raised by scott brown back in 2012. warren won that race. hillary clinton is off the campaign trail today but her husband is meeting with attorney general loretta lynch and is sparking new criticism. they had an impromptu meeting at an airport on tuesday in phoenix and talked privately for 30 minutes. lynch says the conversation was mostly social and did not veer into any matters pending before the justice department or congress. >> our conversation was a great deal about grandchildren. there was no discussion about benghazi, no discussion of state department e-mails, by way of example. >> reporter: critics say the meeting was inappropriate because the fbi is investigating the potential mishandling of sensitive information that passed thro

was secretary of state. a new step forward in the effort to rename a school in fairfax county. a resolution is expected to be introduced at tonight's school board meeting and would explore changing the name of the high school in falls church. a student began the initiative last year after she learned that stewart fought as a confederate in the war. the weekend is getting deliciously close to us. a lot of people have already taken off for the holiday. beautiful today. we have a chance of storms tomorrow and then there is a threat of rain for the fourth. let's check with doug. let's look at that chance as we go through the next couple of days. today, beautiful again. low humidity, although it's on the rise. average high is 88. take a look at the numbers right now. we're sitting at 81 degrees

and 85 towards philadelphia. beautiful weather all the way around and that's going to continue. nothing on the radar. we could see a few showers and that's going to be about it. another nice night tonight. humid during the day tomorrow. storm chances tomorrow, we'll track that for you, too, and possible rain on the fourth. that is something that we'll be watching. how much rain, when does it come in? i'll break it down for you and give you the timing in my full report. >> thanks, doug. one man arrested for three murders in prince george's county. a new piece of evidence recovered days after the crime could be important to that case. and an ironic twist after a pedestrian is hit just blocks from where officials were talking about the danger of the road to pedestrians. we'll see how this played out. i'm kristin wright on the national mall where thousands of people are about to come

coming up on news4 at

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the national mall, especially on the fourth of july, is home to one of the biggest events in our area joining tens and thousands of

people but this year terrorist attacks are top of mind. it's a busy time of year as travelers all over the country get ready to hit the road or the airways. our kristin wright has more on this. kristin? >> reporter: given the attacks in istanbul and orlando, security is weighing heavy on a lot of people's minds. the other thing people think about is keeping your kids close. thousands of people are coming to the national mall for the fourth of july celebration and u.s. park police are stresses to parents to do everything they can to keep track of their children in the big crowd. >> if you have small children under the age of 5, please make sure you

number so we can contact you. >> reporter: police want to notify parents of a text communication system. another tool. we asked the police how they are preparing and security described on the mall this july forth will be robust and timely. >> intelligence is looked at and currently there are no threats to this event. however, the united states park police and our security posture will be prepared. >> there seems to be a lot of people out checking the crowds and a lot of people placed here and there. >> reporter: so rain is in the forecast on july 4th. the decision about what to do about that is going to be made during the day. if the show is canceled on monday, it will go on on tuesday. live on the national mall, kristin wright, news4. an explosive demonstration on the mallo

dangerous fireworks can be. there are 11 people that died from fireworks injuries last year and another 12,000 were treated at the hospital. the highest number in 15 years. new york giants released a statement. he lost a finger, part of his thumb in a fireworks accident just last year. and if you are traveling somewhere for the long holiday weekend, expect a lot of company. an estimated 43 million people will be leaving town and that's a record number. the national average is $2.30, the lowest in decades. a new exhibit at the national building museum will be opened this weekend. it's being transformed

they will be suspended from the ceiling and towering from the floor. the exhibit includes a bridge and slides and in keeping with the theme, shaved ice will be for sale. >> this is about construction. this is an engineering issue and a design issue. >> honestly, i am shocked. i did not know what to expect. >> reporter: last summer, the museum drew more than 180,000 people to its plastic ball beach officials think they can do better this year. saturday is the opening day. some changes for metro riders. today is the last day to transfer left over money on your paper fare cards to the smart trip card. you can exchange them at the brown machines at the metro station. also, starting tomorrow, you won't get charged on metro if you enter and exit

station within 15 minutes. people out there stealing computers donated for school kids. tonight, the i-team reveals how criminals are profiting from a popular government program and what's being done in an effort to stop it. pedestrian safety is a concern for all of us but here in montgomery county, the focus is now in the actual parking lot itself. i'm adam

we have had a string of beautiful days and that's about stopped, huh? >> well, on tuesday and wednesday, we had a couple of strong storms. humidity was way up there. guys, know how to tell if it's summer? take a look at this camera and you tell

now they take the graphics. >> boy, this better have a payoff. bugs? >> bugs. thank you. it's all about timing. 81 degrees, winds out of the south at 8 miles an hour. sunshine in the area. low humidity but this southerly wind will bring down the temperatures. 79 degrees and warm conditions then. 9:00, 11:00, all looking good. a very nice night for a game no matter what you are doing, a nice night and no rain to talk about. activity to the south and showers moving in er

dying off to the north and east. cloud cover in the northern neck. the wider picture here going really wide now shows our next storm system and, again, it's a front. you can see it coming through minneapolis. today, going through chicago in the next few hours, it moves our way. more humidity and a better chance of showers and maybe thunderstorms. here we are around 2:00 on future weather, friday, 2:00, showers and a couple of thunderstorms. but widespread. tomorrow is not going to be a day that you'll need the umbrella a lot. not a washout of a day but we'll see the storms come through. when they do, they could be on the heavy side with heavy rain and lightning in the way of wind or severe weather. at 11:00, the front is still back to our west so we could see storms around 10:00, 11:00. 8:00 a.m., 74, 83 by noon.

88 degrees around 4:00. warm. the high temperature, a high of 89 in the city and heat index in the low 90s tomorrow. 91, fredericksburg. ten-day forecast showing the weekend looking good. 86 on saturday. 84 on sunday. both days with low humidity. july 4th, 83. a good chance of rain and storms. look at next friday, saturday and sunday, the heat is moving back in. prince george's county police arrest a suspect in the district heights murder. ahead, why new evidence found just last night may be so crucial to moving their case. also, ahead, hundreds of pedestrians hit by cars every year in one maryland county. and it happened

were covering the story. a 68-year-old veteran who turned his life around and is hoping to inspire others. > god really broug>ht

the murder suspect seen in this surveillance video is now in custody charged with killing three people over the weekend in district heights. and just last night, police found a piece of evidence that

goes to trial. chris gordon in maryland now to explain more about this. chris? >> reporter: jim and wendy, police credit the public for leading them to lawrence rogers, the suspect in this case. they found him at a friend's homein southeast washington. what they found in his possession may be the most important evidence in this case. police are still working on a motive for the murder in district heights last week but when they arrested lawrence rogers jr. they recovered a .9 millimeter handgun. >> they are doing the proper tests that they have to do to see if it is in fact our murder weapon. >> reporter: police say you are looking at crucial evidence. the suspect was caught on a convenience store on cameras half an hour before the shootings and caught on surveillance video cutting across the yard after five people wereot

orleans avenue in district heights on friday evening. police released the videos to the media. tips from the community came pouring in leading prince george's county police to arrest 24-year-old lawrence rogers jr. >> on monday, we got the videos out to the press, out to you guys, which we appreciated you putting it out there. we knew we would get information back to the community. >> reporter: rogers faces first and second-degree murder charges in the deaths of 60-year-old alan wayne, 50-year-old carlena renee gray and 55-year-old jan marie parks. two others were wuounded. allen worked for a company and the ceo released a statement saying, "wayne was a long-time, loyal and dedicated employee and a friend to many across our company. we are shocked and saddened by this tragic lots." police say lawrence rogers acted

murders and are reaching out to the public for more information about where he was before and after and whether he may have known the victims. that's the latest as prince george's headquarters, back to you. >> all right, chris, thanks. he spent 16 years in jail for the murder of his former high school girlfriend but now at the center of the podcast "serial" could have a new trial. the judge ruled that his lawyer did not challenge testimony in the case that captivated millions of listeners around the world. syed was convicted in 2000 and sentenced to life in prison. the victim was found in a shallow grave in a park in baltimore. hundreds of teenagers from d.c. spent this day learning how they can help curb violence in the city. the u.s. attorney's office for the district and ten other organizations hosted a youth violence summit at the friendship collegiate academy in

has been held. the focus this year was the role young people play in preventing violent crime and cooperating with police to help solve crimes. yet another pedestrian accident in montgomery county and this one in wheaton and just as county leaders were kicking off a new pedestrian safety initiative. transportation reporter adam tuss is live in wheaton with their plan to keep them safe. adam? >> reporter: this event was all about pedestrian safety everywhere. yet again, we were reminded of the dangers of the simply trying to cross the street. with a pedestrian safety news conference under way here in montgomery county -- >> this is important. >> reporter: a serious pedestrian crash happened at university boulevard and drum avenue right around the corner. skid marks on the ground through the crosswalk.

the front driver's side. the driver was sitting on the curb dazed. no word on the victim. it's an all too familiar scene here and officials are fed up. >> this is unacceptable. >> reporter: pedestrian safety is a huge issue on the roads of the county as well. these numbers show you 420 pedestrian collisions in 2014, ten of them fatal, 467 total collisions in 2015, 16 of them fatal. so far, the pace has improved a bit. one crash and one fatality too many. they are trying to eliminate all deadly accidents. >> drivers may not realize i can't get out of the way. >> reporter: this council member recently broke his hip and walks with a cane and sees the pedestrian landscape in a whole different light. >> it's terrifying because at any point someone could back out and

on my knowledge that i can leap out of the way of any car so i'll be safe but i can't do that anymore so i don't feel safe. >> reporter: today a. message of better awareness for all of us. and we were reminded of the dangers of crossing the street yet again. no word on the victim in that crash. back to you. >> adam, thanks. a story of strength, perseverance and grace. homeless vietnam veteran turned his life around after decades of drug abuse and living on the streets. it's a program meant to supply your child with computers at school but it's not always falling into the right hands. >> it's pretty simple from what we saw. we saw another great day today. rain chances increasing as we move through the next couple of days. see you in a minute.

is. there is political fallout from the brexit vote. boris johnson is the former mayor of london. he was the unofficial face of the move to leave the european union. he appeared likely to become the next british prime minister. but just minutes before the deadline to declare his candidacy, he took himself out of the running. johnson's strongest ally in the brexit effort was justice secretary michael gove. johnson expected gove to back him for prime minister but instead gove put his own name forward today. kind of quiet on the residential side of the white house these days. president obama and his wife and daughters are traveling, even his mother-in-law. the first lady and children and mother-in-law are in spain

girls learn initiative. she held a similar event in madrid today. the first lady and family will return home tomorrow. thousands of veterans are getting a second chance at the american dream. >> reporter: two years serving in vietnam followed by more than 30 years of being homeless, alfred jiggets says his time in homeless shelter was worse than vietnam. he came home addicted to heroin and suffering with mental health issues. >> i was diagnosed with ptsd. >> reporter: his story is like so many other vets. >> nationally, according to the department ofou

development, a little less than 50,000 veterans nationally are experiencing homelessness at one point in time. >> reporter: but like thousands of vets in the past few years, he got the help he needed. he got sober, got married and, last month, bought his first home. >> i have a good god that's done for me and where he brought me from. >> reporter: jiggets now wants to help other vets. >> it makes me feel good and then let the next person know it's never too late to start and do anything. >> it's a real prove point that ending homelessness is possible, too. >> reporter: he credits getting connected to the local support groups and va with making his story possible. in prince george's county, news4. tracking down on computer fraud. just ahead, the i-team exposing

computers donated to school kids but profiting criminals instead. there is a potential vulnerability in a popular government program that provides millions of computer equipment to local school districts. the government is now cracking down on these computer crooks. >> reporter: the school year ended in frederick as it did at so many local schools with a flurry of state tests now mostly completed on computers. the school is wired from top to bottom says school i.t. director. >> how many computer labs do you have? >> about 29. >> 29? >> 29. >> that's hundreds of computers. >> reporter: many of their computers, several hundred, donated by the federal government called computers for learning. >> how do they perform when you plug them in and

>> they were fantastic. >> reporter: nationwide, the program hands out 30,000 desktops and laptops per year. take the case of benjamin. surveillance video shows him loading his truck with the equipment saying he wanted it for a nonprofit education program he ran out of philadelphia. turns out, his nonprofit group was duping the feds, collecting computers and reselling them for profit out of his apartment. >> computers actually need to get to the schools and students they are intended for, not for criminals who sell them for personal profit on the street. >> rt

u.s. general services administration inspector general. >> it's actually pretty simple from what we saw. >> reporter: operating the school districts apply and no one agency oversees the entirety of the program. or it's applicants. small and large and participate in the program. though applicants are required to enter a tax i.d. number on their forms, we saw no backgrounds required for people or groups who apply. no in-person visits either. and no government-wide bans. >> we've seen them sell them on craigslist individually and we've also had a result to. computer repsychers and wholesalers. >> and kept the money? >> and kept the money. >> this is a power

that says sometimes unqualified r registrants and nonprofit education association has long since stopped operating but he kept applying and collecting the computers anyhow. >> but steven last year in california said it might be the biggest of all and pretended to represent several legitimate nonprofit education groups and made off with 19,000 computers. $7 million worth. and resold them for profit before he was busted. he's now serving ten years in prison after pleading guilty to fraud. computers meant for school kids who need them like they do at thomas johnson high school. it now fills 27 of their 29 computer labs with more likely to come. scott macfarlane, news4, i-

i-team, call 202-884-4444. or send an e-mail to tips @news4iteam.com. the weather is not so bad, huh? >> i'll take a day like today especially this time of year we could see temperatures in the 100s. >> tomorrow is going to be the stickiest day that we've seen. a high temperature the other day close to 90. heat index of 95. we're going to get close to that tomorrow. take a look at that right now, 81 degrees and humidity is not bad. winds out of the south and it's helping to produce humidity as we make it through the evening. 80 in culpeper. no rain out there. the radar has been dry all afternoon and i expect it to be. a couple of showers down south trying to move in to northern maryland but thav

that will continue. we will stay on the dry side. overnight and into the day tomorrow, a really nice day but it's going to be warm and more humid. scattered storms. not everyone is going to see them. if you take the umbrella, you're not going to be mad if it starts to rain. the winds pick up during the afternoon and evening. the impact forecast tomorrow, yes, we have storms but still going for a rather low impact on your day. again, the reason that the storms move in, most of them are going to be moving in and then out fairly quickly. so that's going to be the good news there. it will be rather hot and humid. 86 on your friday. nice weather. lower humidity. 84 on sunday. then we get to july 4th and what are we talking about here? 83 degrees. it does look like a chance of storms during the day. we're going to have to watch it closely. the next thing i'm watching, a potential heatwave

the next weekend. >> thanks, doug. we have sports coming up. nats riding on a four-game winning streak. what is keeping harper out of the line-up. first, here's what is ahead on "nbc nightly news." >> jim and wendy, an urgent recall. the deadly risk that has safety officials urging owners of certain car models to stop driving them. why an i mpromptu meeting between bill clinton and

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shorthanded? is that what i heard you say? >> not shorthanded. tonight is ladies' night. that means we should go. how about them nats? this is game number 80 for them. first sweep of the mets in a few years. on deck, for getting number 80, we're going to start a four-game series against the reds. dusty baker upsetting a

ladies as he is resting. bryce harper is off today as well. he had some scary moments last night. fouled off the foot and then twisted his ankle running to first. his skipper is not worried about his start. >> harp doesn't get many. i figure today is the day. we've had a tough series. he got banged up. at this point, i mean, you're very lucky or something's not ailing you or something because playing every day. when it comes with what kind of mental strength that you have if you can play through things and he's been playing through things the last couple of days. >> meantime, the good times keep rolling for the orioles. on a west coast trip visiting the mariners and going for their eighth sti

runs. first pitch is at 10:10. the ice heating up. free agency begins tomorrow. wilson, check. the team has officially resigned the feisty forward a two-year deal worth $4 million. one of the questions that they have right now, will jason chimera be back in 37 years old but had a huge year with goals. one of the fastest skaters on the ice. as you hear, it doesn't sound too encouraging. despite the head coach keeping on high praise. >> chimera was really good. i mean, he's been productive. he skates. he's got a young guy.

slim chance that he would have an ability to come back. he could play until he's 45. i think he's going to go to a three-year deal. somewhere in the national hockey league and he's got a 28-year-old body on him. i don't think he's going to get any slower in the next year or two. >> hasn't slowed down yet. first round draft pick and lucas johansson has a member playing on the national predators. jay williams was a caps fan since he was 8 or 9 years old and is now trying to make the team. >>. >> reporter: what is it like wearing a caps hat and jersey? >> it's great. so many guys have bright futures and opportunities and work with them an

it's awesome. you're trying to take it all in. >> reporter: did you fall in love with the team right away? >> yeah. yeah. right away. it was awesome. the next day i tried to play in my garage and then i got a goalie book and i thought the pads were cool looking and now here i am. >> and one day after qualifying for his fifth olympics, michael phelps is trying to make another one today. his friend and nemesis ryan lochte was the only swimmer with the slightly faster swim. they are both going to swim tonight in separate heats in semifinals. happy birthday to michael phelps. he turned 31 today. if he wins gold in rio, he will become the oldest gold medalist for u.s. swimming ever. >> and he will. >> exactly

that's our broadcast for now. "nightly news" is coming up next. >> and we'll see you maybe almond breeze tastes so good

made with california blue diamond almonds. but if you ask our almond growers... there's no maybe about it. almond breeze. the best almonds make the best almondmilk. proud sponsor of usa volleyball. woman: i have a masurprise for you.are you? man: you have a surprise for me? narrator: at dominion, 1 in 5 new hires is a veteran. and when they're away, they miss out on a lot. but they won't miss out on financial support. because we cover any difference between their military pay and their dominion salary, and continue benefits for them and their families. why do we do it? because our vets sacrifice enough. "dominion. depend on us for more than energy." ♪ stand by me.

breaking news tonight, a new government warning for hundreds of thousands to stop driving their cars immediately because of potentially lethal air bags. also late word the feds investigating the first fatal crash in a self-driving car on auto-pilot. high anxiety and high alert for travelers at america's airports. there's word of a big show of force in the nation's biggest cities. history and controversy as the pentagon lifts the ban on transgender service members serving openly. "serial" new trial. the man at the center of a murder mystery, the subject of a podcast station heard by tens of millions getting another chance to prove his innocence. and toxic emergency. big trouble in the water tonight at some of the most popular beaches in america.