Childrens mother dead. The search for clues in this case has broadened. Two blocks from where the body was found, police systematically went through trash cans looking for something that might lead them to a suspect. Friends have identified the victim here as dr. Bonnie black. She is a 42yearold psychologist who does contract work for the fbi. She seemed very friendly. Reporter how would you describe her . Kind of a typical mom, probably preoccupied with the kids. Reporter shes the mother of two children a 5yearold girl and a 3yearold boy. This morning around 7 50, her children in their pajamas were in the street in front of the house, and they were distraught. A passerby stopped by to console them, called the police. And when the cops got to the scene, they found dr. Black dead inside. What does Something Like this do toed neighborhood snf i have no idea. I dont think anything like that has happened to the neighborhood before. Reporter police are investigating this as a case of murder. Detectives and crime scene techs have been work the scene all day long. Dr. Black is estranged from her husband. He does home renovation work. His work truck was towed from the scene earlier today. The couple is in the midst of a volatile divorce. A Court Proceeding in the case is scheduled for next tuesday. Dr. Blacks lawyer said she had a court order prohibiting the estranged husband from going onto her property or entering the house. Police say the husband has been cooperative and has talked to investigators today. But what about those little children . What did they see . What do they know . Whats happening to them now . Ill have more on that coming up at 6. Jim, back to you. An International Manhunt under way for a local martial arts instructor. Hes been charged now with child pornography, and Police Believe he met some of his victims at his karate studio. News4s derek ward is live in achievye chevy chase with details. Reporter the afternoon classes have been canceled at this karate studio here in chevy chase, but theres a meeting scheduled for 6 30 for parents because of that instructor at this school who is wanted on eight counts of possessing child pornography. Police believe they know where the 26yearold is. He is a citizen of the country of georgia. We know that he has fled the country. We have nfks that he has fled the country. We do believe he may possibly have fled to georgia. Reporter and they think they know what he did while he was an instructor at this Martial Arts School in chevy chase. Weve got video shot by the man showing him with adolescent and young adult males. They were engaging in inappropriate touching as well as sexual acts. Reporter the videos were seized on Electronic Devices taken during a search of his Bethesda Home april 1st. When they searched the home they say he admitted to having and trading child porn. At that time there wasnt enough probable cause to issue the warrant for the arrest. Reporter they believe he left the country during that time. Once they could legally analyze the images, they learned they were made here where he was instructor and part owner. Clues in the video told them the dates and times of those incidents. They believe the potential victims knew they were being taped but police dont know who they are. They want them to come forward. We want to know what happened in these videos. Again, youll be confidential. We dont want anyone to hesitate coming forward. Reporter also, there may be others who werent videotaped. They want to talk to them, too. Now how did police get on to this case . Well its from a story that developed a thousand mile as way. Details on that coming up on news4. Live in chevy chase, back to you. Derrick ward, thank you. Theres an arrest tonight in the torching of three cars. A man from bethesda is charged with burning vehicles in bethesda. Neighbors discovered the fires early on wednesday, and from the beginning police were confident that the clues found on the scene would lead to an arrest. Were tracking a koum of showers and even i couple of rumbles of thunder. But nothing to worry about. Really most of us will stay on the dry side. Take a look at the radar, pig up the showers mostly in through Northern Virginia. We had a couple through parts of maryland earlier thats all gob. These wont be holing together. Theyll move to the south and fall apart a little bit. Lets zoom on in and show you this area of showers and thunderstorms to the south. Weve only seen a bolt of lightning here or there. Just to the north of gainesville toward manassas, chantilly and centerville, this shower down. Then another shower in stafford county. If you live in stafford county, youll get wet, 100 chance of rain with this system coming right across stafford county. More back toward the culpeper area. In the d. C. Metro area were not bad at all. As a matter of fact, if youre heading out this evening looking like a good one chblt well have the complete forecast and show you just how warm temperatures get this weekend in my forecast. Just in to news4, a former Fairfax CountyPolice Spokesman has now resigned after his arrest on child pornography charges. Bud walker bonded out of jail this morning. There is he. The judge barred him from using computers, told him he may not have any unsupervised contact with children. Only on news4 tonight new details on potential threats near the u. S. Capitol. An investigation by the iteams Scott Macfarlane reveals more than a dozen cases of people who were caught carrying guns on or near Capitol Grounds in the past three years. Scott macfarlane reports from the hill tonight one person actually pulled the trigger. Scott . Reporter yeah, wendy, 14 people at least with guns near the u. S. Capitol since 2012. Many of them were stopped at one of the many metal detectors around here, but Capitol PoliceUnion Officials say all those seizures raise questions about whether more officers are soon needed here. The tourists on lockdown inside the capitol complex, and the Police Quickly responding to a public area on the capitols west front. It was a frightening scene saturday when a 22yearold illinois man brought a gun on the grounds and shot and killed him himself. He could have easily made a statement and took out other people. Reporter in the days since weve been investigating how often are guns brought onto the sensitive streets where members of congress and visitors walk without Police Escorts . Internal Capitol Police reports show more often than you might think. We found 13 people either arrested or from whom guns were seized since 2012, including a lobbyist who tried to carry a firearm last summer and a u. S. House staffer who did the same days earlier telling us it was an accident. Our investigation found in another case weeks ago Capitol Police seized a stolen gun from a person suspected of drive drunk on the grounds. Another gun seized at a metal detector near the library of congress and one seized from a person carrying it in plain sight near the visitors center. A Capitol Police spokeswoman says the seizures are the byproduct of police work. The head of the union says what we found raises some concerns. He says, quote, the officers are absolutely prepared and focused to handle any gun incident we encounter, but in the future things could get complicated with staffing. 400 officers are eligible to retire. Should 25 of them decide to leave tomorrow, the department would be grossly understaffed. Our reporting got the attention of some members of congress who say the u. S. Capitol police might need an awful lot more money awfully soon. That part of our story tonight on news4 at 6. Wendy . Scott. And the maryland man who jumped the white house fence last october is facing a year in jail and a 100,000 fine. Dominick adasanya pleaded guilty to entering a restricted space. This plea deal gives him one year of supervised release which prohibits him from entering the district except for his court appearances. Just a short time ago, a judge agreed to release him until he is sentenced in july. However, he is still being held because he has other charges against him. A gas station worker is recovering tonight after a man hit him in the head with what appeared to be a handgun. Police tell us the man went to rob this shell station during a shift change this morning. At some point, he hit one of the clerks, then took off running. This happened at colesville road and university boulevard in Silver Spring. Were told the surveillance camera captured the robbery but the suspect covered his face. There is concern tonight for a germantown teenager missing since yesterday morning. 16yearold mervin revis chang from mill haven place was last seen when he was dropped off at school. He has not been heard from since. Hes 58, 140 pounds, brown eyes and short brown hair. His family and police are worried about his safety. If you see him, youre asked to call the police. And there will be a new search in Montgomery County this weekend for the missing hoggle children 2yearold jacob and 3yearold sarah were last seen last september. Expect law eastern forcement in a variety of locations sunday using canines, atvs and horses to help in that ground search. The childrens mother is in a Mental Health facility being held on child neglect charges. A new effort under way tonight to recruit firefighters from d. C. For the first time in eight years, the district is offering an entry level exam to develop a pool of possible recruits. The mayor and interim chief announced that plan at an event here today the first 1500 people to register online for the exam will get to take it. And d. C. Residents who pass the exam will get what the department is calling preference points in the hiring process. Online Registration Opens may 20th. And new tonight, the wife of that pilot who flew onto the lawn of the u. S. Capitol building is standing by her man. I think he wasnt. How she says she found out about this under the radar stunt. Reporter im jason pew at the Verizon Center for game two between the capitals and islanders. Kol coming up ill tell you why this is a mustwin for the caps. Closest i can get to my father at this stage of the game. A virginia woman recovers a touching piece of her father thanks to the efforts of a stranger. Its next, and its a story youll see only on news4. Were coming right back. Which car company is the first and only to offer builtin 4g lte wifi in cars, trucks and crossovers . Ranking from top to bottom. Im gonna say mercedes is the innovator. Bmw just because theyre pricey. The final answer. Wow. cheers chevy. This model has the wifi in it . Yep. Thats the dream to have wifi in the car. Get cash back for 15 of the msrp on select 2015 models. Thats over thirtyone hundred dollars on this chevy cruze. Find new roads at your local chevy dealer. He flew in under the radar, but Capitol Police and secret service werent the only ones who didnt know about doug hughes protest flight. His wife was also kept in the dark. Our affiliate in tampa bay spoke with alena hughes today. She said she found r found out about the flight when reporters began calling her house. She thinks the flight was patriotic but says personally she has mixed emotions. I proud of him, but for me its stressful its very stressful, yes, for wife. Its not good. Alena says shes eager to get her husband home and is most worried about how the couples 11yearold daughter is handling the situation. A box of letters written by a soldier to a pen pal during world war ii, its been handed over to the mans daughter. She didnt even know her father who has since passed had been writing to a woman long before eden married. Darcy spencer shows us how a firefighter in new york made it happen. Hello, honey, how is our pinup girl . The fellas in the ward appointed you as their pinup girl. Reporter sue ortman reads from one of the letters her father wrote to a woman, a pen pal, while he was serving in europe in world war ii. It had some bad news in it about my mom. Her Blood Pressure seems to be on the mean side and wont come down. Reporter these letters reveal a side of her father, a part of his young life, she never knew. In fact he never talked about writing to a woman during the war. Just thats the closest i can get to my father at this stage of the game. Reporter the letters were from Robert Ortman an army soldier who was in his early 20s. They were dated from 1943 to 1945, mailed from italy, france and germany to a young woman in new york who had 48 pen pals. This was a young, single guy over in europe, far away from home, and he was holding on. Reporter so how did she get her hands on this treasure of letters . It all started with a fire in a vacant building in new york city. A firefighter came across a box full of letters, and that started the whole thing in motion. A fire captain tracked down ortman using her dads name and date of birth through the ancestry. Com website. This video is from the d. C. Fire department, showing the captain after he gave ortman the letters. Ortmans husband is a d. C. Firefighter. Its really kind of overwhelming. Reporter ortmans father passed away in 2007 without ever mentioning the woman he had apparently fallen in love with and met at least once. He married ortmans mom after the war. His pen pal also got married. She died in the 1970s. Was she really just did she think she was leading these people on or did she really think that was her duty, to give them something to live for, whether it was going to happen or not . Reporter darcy spencer, news4. The push to replace Andrew Jackson on the 20 bill with a woman is getting a whole new support on capitol hill a Grass Roots Campaign called women on 20s already has its final four rosa parks eleanor roosevelt, Harriet Tubman and will la mankiller. Jeanne shaheen introduced her bill to put a woman on paper currency. It would task the Treasury Department to appoint the Citizen Group to make recommendations. We have a lot of symbols in our culture about what we value, and it would send that message, that we value those contributions of women just as we value the contributions of men. The treasury secretary has the ultimate power to authorize a change in currency. Jackson has been on the 20 since 1928. Apple is denying reports that its highly anticipated watch will be delayed if you want to buy it in store. A Company Spokesperson tells nbc news that the Company Previously announced it would be available next friday. But they say that that announcement did not specify how customers could get it. Right now you can preorder the new watch online starting next friday, youll be able to try it on in the store. But apple hasnt announced when you can actually buy them in person. An injury from an exploding air bag has prompted an expanded recall of those faulty air bags. Nissan is now adding the sentra compact small cars to that list. This involves 45000 vehicles made from 04 through 06. In high humidity states mostly along the gulf coast, this is a fix to an air bag inflating mechanism that is made by tacata. The problem has been linked to six deaths dozens of injuries, and the latest is a woman in louisiana who was injured when her air bag exploded in a vehicle that was not part of any previous recall. Huge playoff game tonight for our caps game two against the islanders. Lets go straight to jason pew live down at the phone booth. Jason, fans getting a little nervous yet . Reporter yeah, they are, jim. They were nervous especially after the performance in game one by the capitals. This mornings skatearound didnt help the nerves. One of the star players, goaltender Braden Holtby missed the skatearound. He is feeling under the waernlg. He is kpeblgted to play tonight, though. The players know they need to give fans something to cheer about, something they didnt do in game one. Im sure the fans are sitting in their seats rd to get out of them, and bedidnt give them much to do. We need to player better, be physical. We need to have that relenltless attack. Its going to be a fantastic atmosphere if we give them something to cheer about. We were a little off, not our best hockey game chshgs is disappointing. But the more we get going here, the more games we play, i think were going to continue to improve, continue to get better, and we have to have a mindset that were going to be a lot better and get ourselves a win and get ourselves back tie nd the series. Reporter the guys know what they need to do to get a victory. And perhaps no ones outlook for tonights game is brighter than joel wards. Everyone is excited. Everyone is just the perfect time of year, the sun is out, bring out the sunglasses xs you wake up in the morning with a smile on your face. Its just a matter of going out there and executing. For us its a Good Opportunity to play in front of our own fans and before we go on the road. Were just excited for tonight. Reporter now, if you thought that joel ward was a little relaxed in that bite, thats because the majority of these capitals players are relaxed theyre not too nervous about this game. They know they have to play well, but they know if they aplay their game theyll be successful. From Verizon Center, jason pew, news4 sports. Were still working several developing stories right now. An outpouring of support for a family the victim of a cruel crime. A mother talks to news4 about the theft of her 4yearolds wheelchair and what police are doing to catch the criminal. Were talking about some shower activity making its way through the region. Ill continue to track that rain for you and show you whos going to get what over the weekend, co and now your storm team4 forecast. Happy friday and a fantastic friday. Thats what weve seen all day today in most areas. Most of us are on t