Used to honor officers. Somewhere beneath the cards and the flowers, Dallas Police cruisers. The weeks deadly shootings have had an impact on everybody. You know how close that could have been to me. Reporter even the youngest members of the community are learning about loss. With a bucket nearly bigger than he is, 6yearold charlie argo from burlington, texas has set out to help. With cookies, lemonade, and koolaid, hes learning the value of a dollar for a greater cause. He told his mom whatever profit he made hed donate. To help the families of the police. Reporter to charlie big cookies mean big bucks. And big hearts. 25 years as a volunteer fireman. Thank you. Reporter working in the texas heat is hard work. Im tired of standing. Reporter and doing good can charlie tell you. Its it takes forever. Reporter if you couldnt tell by his koolaid mustache or the chocolate on his face, hes dipped into his profits a bit. But hes made up for it. The innocent know whats happened, and theyre hurting too. And whether its with a cold drink or flowers, today in dallas its about paying tribute to the fallen. In dallas, texas, erika gonzalez, news 4. The events in dallas happened after several policeinvolved shootings across the country. Many people in our area are trying to find the words to explain all of this to their children. Prince georges county bureau chief Tracy Wilkins talked to several parents about the conversations theyre having. Reporter when video surfaced on social media of the two recent Police Confrontations that ended in death in baton rouge, louisiana and falcon heights, minnesota it once again sparked a painful and difficult conversation my son a lesson on how to survive a traffic stop alive. Nobody should have to go through that. Reporter today we spoke with members of the 100 black men of prince georges county, a teen mentoring group, about what theyre telling their young members about encounters with police. When youre being arrested, thats not the time for you to argue your innocence or guilt. Thats for the courts, the prosecutor, the defense attorneys. You cannot appear to be combative, threatening, or condescending. We teach these things to our children every day. How to talk to adults. But its a different level when you are you encounter law enforcement. Its a reality thats difficult for these men to explain. Many of whom are fathers themselves. Im a big black man. So the threat is real. So we have to teach our children that be shows a man dying moments after he was shot on facebook live. The baton rouge video shows a man shot point blank range while restrained by two officers. While there are still details to be learned, parents are discussing how to protect their own from the same ending. Tra tracee wilkins, news 4. Metros safe track program is under way. No trains were run between Reagan National airport in Pentagon City and the crystal city station is closed. As usual, shuttle buses will replace trains. But riders traveling from the south should get off at braddock road to take the shuttle bus. Only people needing to go to Reagan National should ride all the way to that stop. Phase 4 ends july 18th. It is summer. It is construction season. And that means slower commutes around our area. This year there are three projects you need to watch out for. Transportation reporter adam tuss shows you what areas to avoid. Reporter when this tangled web of roadw your car sit. Its a little bit of a mess, yes. Reporter one problem spot, river road between goldsboro road and the d. C. Line. Repaving project happening now. It comes on the heels of massive utility work here. I dont know whether its been utilities, water, or electricity or cable down below, but obviously something they had to do. Reporter and this new repaving project wont finish up until next year. 31,000 vehicles a day impacted by the work, which is often happening midday. Its just been more convenient for everybody if they do it at night. I dont understand. It doesnt make sense. Reporter now, in the district you cant miss the twisting, turning work around 3rd street and massachusetts avenue in northwest. A new tunnel here and utilities being moved next to major development. It means even walking through here is tough. Its a little stressful. What was it like trying to cross the street here . Its difficult, right . Yeah. A little bit. Reporter and beltway a new project to add electronic tolling systems will start next month. This project will change 66 inside the beltway. For the first time solo drivers will be allowed to pay to use the road during rush hours. Adam tuss, news 4. When news 4 this week comes right back, a unique way volunteers and veterans are paying tribute to the nations fallen heroes. And what these local students are learning about Patient Safety and how it may save hundreds of thousands of lives each year. They call it renewal and remembrance. Hundreds of professional landscapers recently volunteered their services at Arlington National cemetery. They worked on the cemeterys grass, plants, and even the irrigation system. Many of the volunteers are veterans who want to pay tribute to the nations fallen heroes. Theres a peacefulness. There is that when youre sitting in front of that grave and youre letting that individual know that they are not forgotten. This as the 20th anniversary of the renewal and remembrance project. It is organized by the National Association of landscape professionals. Smokeless tobacco could be a thing of the past at nationals park. The d. C. Council is considering a law that would ban stuff at d. C. Sports venues. Its already been banned in new york city and four other major cities. Nationals manager dusty baker has been in the game for decades and he sounds like hes in favor of this move. In the past ive used smokeless tobacco. You know, whatever they decide, i think its for the best for the kids and best for the guys that are using it. And it is very addictive. Major League Baseball is trying to implement a leaguewide ban. But the Players Union is resisting. The d. C. Council is expected to schedule a vote later this year. Next on news 4 you wont believe how many people die every year from things like surgical mistakes, prescription errors, and misdiagnosis. Improving safety and generating revenue. A look at the speed camera debate in the district as we learn just how many millions of dollars it collects in tickets. News for your health now, and a focus on medical mistakes. A recent study found theyre the third leading cause of death across the country. As news 4s Doreen Gentzler found out, some doctors and hospitals are working to change that. Reporter you may remember the headlines from five years ago. Pennsylvania congressman john murtha went into Walter Reed Medical Center for gallbladder surgery. A month later he died at virginia hospital, reportedly due to complications from a mistake made during the operation. If medical care gone wrong were a disease, it would rank as the third leading cause of death in the united states. Reporter dr. Marty mc recent study which analyzed death rate data from the past eight years. The results, published in the journal bmj, put death from medical errors just behind Heart Disease and cancer as the leading causes of death in this country. Unnecessary treatments, fragmented care, people falling through the cracks, overdoses, complications that are totally preventable. These are the collective causes that comprise the problem of people dying when they should not. People dying under our care. Reporter dr. Mccarey underscores that most of the mistakes are not due to inherently bad doctors. And we shouldnt look to doctors to blame the problem on individuals. We are human, and were always going to be human. But we can talk about how can we design the system in the hospital so capture mistakes, provide safety nets. Reporter early on a monday morning in downtown washington, dozens of new medical interns are given by medstar health. Our job is to give you these tools, to train you in these so that you can provide the safest, highestquality care possible. Reporter dr. David mayer runs the threeday seminar. We need to break down those barriers. We need to do huddles with everybody involved with a persons care. Reporter he cites miscommunication and diagnostic error as significant causes of medical mistakes, and he believes educating and supporting young doctors is critical. Weve got to make sure that they understand that its safe for them to go up the chain of command, to call a senior zrentzrent resident, to call an attending when theyre uncertain and theyre trying to make a critical thought process in a patients care. Reporter while dr. Mccarey hopes more funds will be directed toward combating medical error for the long term. We spend a lot of time and money on Heart Disease and a lot of time and money on cancer, but we have yet to rog our complex medical system can harm people just as any diagnosis or medical treatment can go wrong. Reporter Doreen Gentzler, news 4. This week aaa issued a warning for drivers in the district. The number of tickets issued from those speed cameras is headed up. News 4s tom sherwood has a look at just how many tickets are being handed out. Reporter every day thousands of cars and vehicles travel through the nations capital, and every day speed cameras catch thousands of those vehicles dangerously exceeding the speed limit on major streets and through residential neighborhoods. Now aaa, the auto club and insurance company, is warning motorists that after a dropoff in ticket funds in the district three years ago theyre rising again. The ticket prices are too high. The ticket price is quadruple the ticket price in maryland. And people dont understand that. Reporter in fiscal year 2015 last year the city wrote a total of about tickets, according to aaas review of city records, and collected 55. 3 million in fines recorded paid that year. And through the First Six Months of this fiscal year there were 365,000 tickets and recorded fines of 37. 4 million, a pace that could exceed last year. Youve done your latest report on speed cameras. Whats the basic thing you really want motorists and people to know . To obey the speed limit, to slow down. And theres a harsh penalty if you dont. Wed like to see more compliance and a change in the ticket amount in the district of columbia. Reporter motorists say maybe some 25mileperhour speed limits could be adjusted but many also agree cameras slow traffic and boost safety. The fact of the matter is speed does kill people and you do need to follow the speed. The speed limits are set for a reason, for the safety of the public. Reporter in the district, tom sherwood, news 4. Shell forever behe girl of the London Olympic games. Now Gabby Douglas has a chance to repeat that in rio. She officially made the u. S. Womens Gymnastics Team this but as Carol Maloney shows us, the road to rio has been anything but smooth. 2012 womens gymnastics allaround gold medalist, Gabby Douglas reporter at 16 years old Gabby Douglas burst onto the scene. The gold shiny, the lights bright. Hollywood so alluring. She considered giving up the sport. But now douglas going to rio after a rocky road back. Right here a simple full turn. With a fall. Wow. Reporter two falls off the balance beam this weekend at the olympic trials did not make the decision easy for team usa head coach martha karolyi. But gabbys peaks outweighed those valleys. Thats what champions do. Reporter those nerves of steel paying off for douglas. The Selection Committee needing extra time to finalize who is on the roster. A long wait with a happy result. The reigning olympic allaround champion, Gabrielle Douglas im just so grateful and so honored. And right now im just going to work so hard and put my all into it. Sitting in that room is so emotional and so nervewracking and its just like you know, everyones worked so hard. You put everything into it and when you dont hear your name called its like wow, is this really happening . Its just an amazing moment. Nothing really could compare. The heat is on all across the dmv. Temps in the 90s have taken their grip. Theyre not letting go. Its all when news 4 this week in the past few days weve had a look at some of the changes that could be happening or coming at the national air and space museum in washington. The smithsonian received approval for the designs and work is expected to start next year. The improvements will take about five years to finish. The smithsonian plans to keep sections of the museum open while the improvements are made. The long hot summer is in full swing, but that hasnt stopped people from getting out and enjoying everything our area has to offer. News 4s david culver shows us how some people are coping. Reporter on kayak or canoe, a calming approach into the natural space. The weathers perfect to go out for a paddle. Just make sure youre hydrating. Wear lots of sunscreen. Reporter these two mapping out their route through the scenic roosevelt island. You definitely want to make sure to stay hydrated. Reporter the tree cover making the heat more bearable. We have its going to get hot. Reporter hot and sweaty. Youve got the rag with you. Ive been wiping myself down. Reporter those who have to layer up plan to perspire. Im sweating right now just talking. Its pretty miserable out here right now. Very humid, very hot. Reporter Arlington County Police Sergeant Brian Morrison particularly mindful of what his partner has to deal with. This is canine jack, 2yearold belgian malin ois. Hes got a device that warns if the hot gets too warm. I turn it back on. That beep means its syncing. When its synced it will send a signal to this and it will start to page. Reporter a big concern as the temperatures rise, kids being left in the back of hot cars. Already this year, 16 deaths reported. Thats double the number from this time last year. Even with the windows down the air circulation is not going to be enough to cool that car down. Reporter for jack the cruisers not only left on. He also has access to water inside. David culver, news 4. Could be e. Thats going to do it for us for news 4 this week. Thank you so much for watching. Im jason pugh. Were going to leave you with some pictures of people playing that crazy new pokemon go game around d. C. Thats going to do it for us. Have a great week, everyone. Know youre budgeted for the expected, and the unexpected. Know that at least the process of buying a new home can be clear and simple. Know your investments can make retirement closer than you think know. The one word behind all the guidance we provide, tools we create, and services we offer. Because when you have insight, you know. At 6 00 a. M. , good morning. Fighting for control. Police battling it out in turkey with explosions and gunfire. How a country in chaos is trying to obtain a cue. What we are finding out about the attacker in a gunfight with police. A driver killed on a busy road. The dangerous situation as investigators piece together that wreck. A busy overnight when it comes to our international siege. We want to begin here at home. We are in for a hot and humid day. Good morning, im