Inspired attacks. Officials say there is no specific threat, but Law Enforcement is urged to be on high alert. Authorities are keeping an eye on social media. 40 people with ties to isis have been arrested in the u. S. There are concerns following recent attacks in france and tunisia. Again, no specific or Credible Threats have been made, but authorities know our nation is under threat and they have thus they are not taking any chances this weekend. Brianne security is being ramped up at the National Mall ahead of the capital fourth celebration. John gonzalez is live at the National Mall where rehearsals are already underway. John thats right. Rehearsals are well underway. Tonight is a full dress rehearsal that has almost become as popular as the real show. This is what is happening on the west lawn of the u. S. Capitol. This years performers include Barry Manilow and casey and the sunshine band. They are on the stage right now working on their set. First street at constitution and independents will open at 3 00 for the public, four hours before the big show. You definitely want to give yourself enough time because with a heightened security this year, lines will be a little longer. We got a chance to speak to casey about performing at the capitol concert for the first time ever. He said this is as good as it gets. I am really excited to be here. It is going to be one of the most patriotic moments in my life. I have performed in practically every city in the United States on july 4, and now the nations capital. Its a blessing. John casey just performed shake your booty, and he sounded really good. If you are coming to the National Mall, keep in mind, there are only nine entrances due to security. Give yourself plenty of time because they are going to check your bags thoroughly this weekend. John gonzalez, abc seven news. Brianne we will let you join in on the dancing going on behind you. For more on the fourth of july celebrations and fireworks in our area, head to wjlw. Com. There you will find a full list of events. How will the rain impact our Holiday Plans . We have a first look at the forecast. Here we are in the belfort furniture weather center. We are excited for the holiday. I do think we could start off a bit wet for the fourth of july, but i am very hopeful that all the moisture will be moving out so we can try out in time for fist entities. Out wide right now, ebony eight degrees. We do have some outside right now, 78 degrees. 74 at quantico this hour. One of our warmer spots checking in at 79. 77 at lexington park. You can see scattered cloud cover out there across the area. Sunshine trying to appear through. Kind of a mixed bag as we head through the afternoon. I do think a little more rain will move in tomorrow morning. The latest futurecast on when it should move out and a look at your fourth of July Fireworks forecast coming up in just a minute. Brianne 35. 5 Million People are expected to hit the roads this fourth of july. They picked the right time as the average for a gallon of gas is 2. 79 down one dollar from this time last year. You can find the cheapest gas on your route with free apps like gas buddy. Jamie sullivan joins us with a check on the traffic. Its not too bad in some spots. Volume is going to be lighter. We saw that this morning and this afternoon. Very heavy stretch working your way through and continuing south. 95, we will see volume because everyone is heading out of town. Lets move to the map and focus in. 66 heading outbound, 21 miles per hour. Traveling on the beltway through princeeorges county, a little heavy on the outer loop, but we do not have any crashes right now. We had an earlier accident that is in the clearing stages, so that is why we are seeing about 18 miles for our. There is a fire being reported in silver spring. Heads up lets talk tc heres what we have going on this weekend. Vdot has suspended work zones. Hov restrictions have been listed lifted so go ahead and use them. And if you plan to see fireworks in d. C. , vdot is going to coordinate Traffic Signals so that in doubt it will be easier, and also going home. 7 00 a. M. 3 00 p. M. Are the hours. More trains after 2 00 tomorrow to accommodate everyone getting into d. C. That is a look at traffic right now. Brianne new at noon, police are investigating after a body was found in northeast d. C. This morning in the 500 block of oklahoma avenue. They have not yet released an identity or a cause of death. We will continue to stay on top of this story. Meanwhile, we are following the latest developments in alexandria where police are investigating their first homicide of the year. It happened just blocks from the shops in old town alexandria. Investigators believe the public may have the key to solving this crime. It happen right here. My door is right there. Neighbors cannot believe someone was gunned down in their front yard. I have a 21 year old who is about to be a 22yearold. The call came in that a man had been shot. Within minutes, elliott kidd had been rushed to the hospital, but it was too late. The woodbridge man died early this morning from that gunshot. Investigators combed for clues four hours last night and early this morning. Dogs searched the area as technicians pieced together the evidence. This Morning Police say they need the publics help. We definitely believe there were witnesses to this crime. Firefighters had to come out and spray the scene to clean it up. This afternoon, Police Search for this mans killer. Reporting in alexandria, sam sweeney, abc seven news. Brianne right now, u. S. Marshals are offering a 5,000 reward for information helping to find a teenager who is believed to be with a known sex offender. Marshals believe the two may have met online. Today, the world police and fire games are being held as scheduled after yesterdays accident that killed one cyclist and seriously injured two others. It happened when they were traveling at a high rate of speed down a hill. There was a deadly chain reaction. One person was killed. Two others were injured. There will be a memorial tonight at 8 00. Around the world, crews are gathered today to remember those killed in last weeks terror attack in tunisia. 38 people were killed win an islamic extremist opened fire at a beach resort. When in a islam extremist opened fire at a beach resort. Britain had 30 citizens killed. In tunisia, a memorial said ceremony was held at the side of the deadly attack. A 6. 4 magnitude earthquake rattled this morning. Thousands of buildings were damaged in the quake. One of the escapees from the new york prison wrote a letter to his daughter prior to the escape. He said he had always promised his daughter he would see her on the outside. The envelope was postmarked june 6 and the daughter received it three days after. The daughter cooperated with the investigation while matt was on the loose. He was shot and killed by police. Republican leaders calling on the Republican Party to condemn president ial candidate donald trump, who called mexicans racist and drug dealers. Meanwhile, president obama is leveling some of his sharpest criticism of the gop yet. He said republicans are good people but their ideas are bad. The president made the comments about the 14 candidates who want to replace him. He said they are all still obsessed with repealing the Affordable Care act despite that, by every measure, it is working. Coming up, new details in the train accident turned toxic. The action expected later today from tennessee officials. And a call to close beaches on this fourth of july weekend. The big concern as thousands head to the ocean. Plus, why this weekend is especially dangerous to be on the road. Its looking like we might have some rain on saturday. When it will get here and how it will impact your plans. I love the new place. Thank you. We used a designer from havertys to help blend all of my stuff with daves one good chair. I love it. That reminds me of when we blended our furniture. Yeah. Ryan helped me get all my stuff just the way i like it. And emily helped me get all of my stuff right to the curb. That was a great day. Yeah. Refresh your space at havertys with savings in every room plus enjoy 36month, nointerest financing. Havertys. Discover something you. [captioning performed by the national captioning institute, which is responsible for its caption content and accuracy. Visit ncicap. Org] brianne authorities are expected to lift evacuation orders today in tennessee following a Train Derailment wednesday night. People were forced out of theirhomes over concerns of toxic chemicals. Authorities say the train was carrying Hazardous Material when it crashed. State officials now say the fire that gutted a black church in South Carolina was caused by weather. Investigators say there were reports of lightning at the time of the fire. Originally police were looking into the possibility the fire may have been intentio at least five other church fires have occurred in the south since the racist killing of nine people in a charleston church. Shark attacks have people calling for beaches to be shut down this holiday weekend. This comes after 11 shark attacks over the off the shores of the carolinas this year, seven over the last three weeks. Other factors include warmer water, a surge in fish and sea turtles, and more people heading to the beach. We have lots of people in the world in the water lots of sharks, lots of food and thats a bad mix. There are certain areas where we are having these bytes. Use your common sense especially if you are in or around a fishing area. Brianne north carolinas governor is working with safety officials on a protection plan. Police were in fourth of july could be a deadly holiday. The combination of low gas prices and an improving economy could mean more people on the road. That increases the risk of drunk drivers. You have the possibility of people attending to different events on friday and saturday. A culmination of different effects that could really be an integral part of Highway Safety this weekend. Brianne the National Safety council estimates 400 americans will die this weekend. The leading cause, drunk driving. Lots of people are expected to take metro this weekend. Metro trains today are running on a saturday schedule. Parking is free at all metro operated facilities. Metro bus is running on a saturday Supplemental Schedule as well. For many people it feels like a saturday. No work for a lot of people today. But a lot of people on the road. Not a lot of people excited about what its coming no. I have been pouring over the data. I do think we will have some shower chances for saturday, but looking at the latest data i think by evening it should taper off. I know a lot of people are going to the mall early in the day. Its going to be soggy. Brianne bring a next her layer of plastic to put your blanket on top of. Exactly. A little bit of ground fog out there this morning. Weatherbug showing the senate up from earlier today. We have some sunshine peering through. We will see if some of that mosey through as we continue to the evening. I want to keep my coat buttoned, but you have to see the whole flag. If i keep the code open, i look sloppy, but more patriotic. Humidity is not awful. 77 in frederick. 76 at dulles, 78 downtown. Baltimore coming in at 77. Most of us in the upper 70s. Looking outside, we do see some clouds around the area. Also noticing some showers down to our south and west. We hone in on the bigger picture. There is a cluster of moisture down to the southwest portion of virginia. Mainly that stays off to our west, but there is a Little Pocket we will be watching for later in the evening tos the showers push on through. Average tonight 80 degrees. Typically, we are at 88 so shy of where we normally are, but not an awful day. This is our latest futurecast. Showers later tonight, some rain tomorrow morning. By tomorrow evening the shower should move out. The timing would be superb. A warm afternoon just a stray chance of a shower or storm through the evening. Fourth of july forecast tomorrow, near 80. By tomorrow evening, that is when we will see things improving somewhat. If we see some fireworks looking at your beach forecast ould still see some showers. I have two cu Independence Day forecasts. Its that exciting. Sunday, i think we will have the driest of the next couple of days, and then hit or miss storms. Imo hopeful we will be drying out in time for the show. Brianne coming up the two Big Health Insurance companies now joining forces and a surprise on the way. Brianne aetna has agreed to buy rival Health Insurer humana for 37 billion dollars. This would create the secondlargest managed care company. Analysts say a big deal has been expected for weeks. A cargo ship is headed to the International Space station with a muchneeded surprise. The Russian Rocket blasted off this morning placing the cargo ship into a designated orbit. Two americans and a russian have been anxiously awaiting the supplies after the failures of two previous missions. Talking is expected saturday. A landing in honolulu after a fiveday journey over the pacific ocean. Two swiss pilots are attempting the First Solar Powered around the world flight. This is the longest leg of the voyage. It landed in honolulu just moments ago. A burglary suspect and a south florida judge have an unexpected emotional reunion. Did you go to nautilus for metaschool . Middle school . I always wondered what happened to you, sir. My goodness. My goodness. Police say arthur booth was spotted leaving the scene of a burglary. His bond was set at 43,000. We want to get brianne i have the two people of the hour. What does the road look like and what is the forecast . Sunday is the better of the two days but fireworks are not on sunday. They are on saturday. I do think by late in the day rain should be tapering off. By 4 00, i will be back with new model updates. I will bring you a fresh forecast. Jamie it is going to be crowded on the roads. Pack your pati [dramatic music] yeah yo whoo. [cheers and applause] i am terry crews, and im ready to start making people rich right here on millionaire. [cheers and applause] todays contestant is a young physician whos had to prove herself time and time again. Shes hong she wont need to explain herself after she wi the milli. From san francisco, california please welcome mandy armitage. [cheers and applause] how are you . Nice to see you. Nice to see you. All right. Now you say that you have a hard time convincing people youre