the bright yellow highlighted areas. southern fairfax, central parts of prince william county. these are capable of producing some 50 to 60-mile-per-hour winds and small hail. you can see a lot of lightning along route 50, out on the bay bring and that thunderstorm is headed out towards the mt. vernon section of fairfax county. storms are moving off to the east at 20 to 30 miles per hour and a larger line in southern pennsylvania we'll be keeping an eye on that would be arriving around 8:00. >> all right. thank you. now to a developing story in arlington. a jeweller murdered inside his shop and police think this man might be the killer. take a good look, if you can. the suspect wearing a neon traffic vest. darcy has more on the search for the man police are calling dangerous tonight. >> reporter: i want to set the scene for you first. we're live along columbia pike. this is the store why this incident happened yesterday afternoon. you can see a woman is walking up here i believe to place flowers here at the scene. a man was killed inside the establishment as it turns out yesterday afternoon. police are still here on the scene because business at this point is unsecured. because he had to break into the business to gain access, there's still jewelry inside, so police are making sure no one is able to get inside. you showed some of the pictures, very good surveillance photos and there's some lettering on that vest. police are hoping this will be a key to making an arrest. arlington county police want you to take a close look at these photos taken from surveillance video. they show a man in a bright colored traffic vest, wanted in connection with a robbery and murder here on columbia pike. police say a 52-year-old herndon man who works at the store was killed around 4:00 friday afternoon. his bodice covered around midnight last night. his relatives got concerned when he didn't return home or answer repeated phone calls. police had to get the fire department to break through the locked front door. that's when the victim was found. he was pronounced dead at the scene. while reviewing surveillance video, police saw the crime being committed. they're not saying exactly how the victim was killed or what weapon was used. police say they could see the attacker taking jewelry on the video. they're conducting an inventory to see what was stolen. they're hoping the fact that the suspect was wearing a brightly colored vest may lead to his arrest. >> i'm in shock that this happened. i just found out and i was back here earlier this morning and i saw the police here in force and i've never seen them here before. i'm just disturbed and whoever did this, i hope they're caught. whoever did this, i hope they turn themselves in. >> reporter: police at this point are not releasing the identity of the victim. they say they do need help with this case. again, with the surveillance video, there's some lettering on the back of that vest. they say they could not make out what the lettering was on the surveillance video. so if anybody recognizes that vest with the lettering, it may spell out a company or something like that. you are asking to call arlington police. the maryland man accused of threatening to shoot up his workplace is undergoing a psy psychiatric evaluation. police say he threatened a rampage. on thursday, police arrived at prescott's apartment on crofton and found an arsenal of two dozen weapons. prescott has. been arrested or charged at this oinlt. police are waiting until the evaluation is finished before deciding on charges. a police officer is recovering after being shot outside a nightclub around 1:00 this morning at the galaxy nightclub in langley part. three people were kicked out of the club, they got into a car and started shooting as they drove away. one of the officers -- one of the shots hit officer rachel jacob in the leg. she's a four-year veteran of the force. police caught one the car and arrested everyone a short time later. costco is coming to the district this fall. that means some jobs and this morning, an overflow crowd tried to attend a job fair. these long lines outside the church as people waited to fill out applications and talk with company gamesyy÷átives. officiz s, ia27 idn't happen.a27 wonzy at the op z2ght's btmzi00"p teamh l. útc e/09eugk in,&'sl.1ia2 >> reporter: for londoners, the wait is over and the game is on. the u.s. women's soccer team advanced today. they shut out colombia 3-0. they'll face the north koreans on tuesday. that's the latest at the olympic games. i'm phil rogers, news 4 in london. jim, back to you. >> and jill sorenson will have highlights of the soccer match in sports. here's a look at the latest metal count. china is on top with six. four gold. italy and the u.s. both have five, but italy has one more gold so far. brazil has three. one of each color. coming up tonight on nbc primetime, watch michael phelps and ryan lochte go head to head in the pool. in gymnastics, the u.s. men are going for the first team gold since 1984. and one of the most popular events, women's beach volleyball as the u.s. women begin their quest for another gold. coming up, one of the city's most restricted institutions opens its doors. plus, a chick-fil-a controversy. d.c.'s mayor steps into a debate that is raging over social media. ♪ and what sparked a huge dance ♪ dancing the day away on the national mall. it was part of the third annual national dance day. the celebration featured celebrity guests from the show "so you think you can dance." the public had a rare opportunity to check out the st. elizabeth's campus in southeast washington today. the psychiatric facility hosted a community event that offered tours with live music, art and a farmer's market. the area is slated for a redevelopment project. ground breaking is scheduled for next year. coming up next, d.c.'s mayor weighs in on the chick-fil-a controversy. why he's calling it hate chicken. and chuck will tell us when the storms could a i'm barack obama and i approve this message. [romney singing]: oh beautiful, for spacious skies, for amber waves of grain, for purple mountains majesty, above the fruited plain, america, america, god shed his grace on thee, and crowned thy good, with brotherhood... gunfire broke out along d.c.'s busy u street corridor, leaving two women injured. they were short around 1:00 a.m. near the intersection of 12th and u in northwest. one woman was shot in the face. the other in the neck. officers don't believe the women were intended targets. d.c. mayor vincent gray is stepping into the battle over chick-fil-a's stance on gay marriage. the president of the fast food chain says he believes marriage is between a man and woman. that led to mayors in chicago, san francisco and boston saying the company was not welcome in their cities. yesterday, mayor agree competed he wouldn't support a hypothetical expansion of chick-fil-a into the district, calling it "hate chicken." >> there's no place for people who are homophobic here in the district of columbia. i have been a supporter of gay, lesbian and transgender rights and people who don't support marriage equality, it is the law here in d.c. people who don't support human rights to everybody, there is no place for them in the city. >> the debate has caused a firestorm on social media, same-sex marriage supporters plan to hold a so-called kiss-in to protest the chain next friday. supporters have planned an appreciation day coming up wednesday. let's go to chuck watching some storms moving into the area. >> another blazing hot day today. 97 our high at national airport. we're down to 91 now with a north wind at 12, gusting to 18 miles per hour. you can see in the distance, the thunderheads out over annapolis. 88 in manassas. 94 down the road in fredericksburg. severe thunderstorm watch for everywhere east of the blue ridge mountains. the active warnings now until 6:30 in southern fairfax county, southern prince william county for this storm right here. we'll zoom in here. the storm out by annapolis was severe. the weather service has just taken that down. but an intense thunderhead going over the chesapeake bay bridge out towards the eastern shore. this storm still severe now, moving into downtown woodbridge, lorton, springfield area. in mt. vernon, be on the lookout. this may very well produce some small hail and wind gusts of 50 or perhaps 60 miles per hour. so be on the lookout. that strong to severe thunderstorm will be grazing into southern portions of prince george's county in the next 45 minutes to an hour. upstream from there, another band of thunderstorms about two to four hours away from the area. scattered storms around here for the remainder of this evening. temperatures back down to the low 80s by 11:00. the london forecast for tomorrow, clouds and rain showers moving in for the second half of sunday over in london. for us, evening thunderstorms will fade away. we may have to contend with a lit t bit more in the way of rain chances tomorrow. sunday, monday, tuesday looks pretty nice, a little chance for showers on tuesday. but better beach weather than not. tonight, passing clouds, overnight lows 70 to 76. for tomorrow, a little lower chance of rain. it doesn't look like a big deal like today. and then rain chances off and on for monday. best chance of rain will be on tuesday. when they fizzle out towards wednesday and highs up near 90 degrees. >> same old same old. in terms of storms, they just keep moving through. coming up, the nats get a wakeup and the redskins enduring the heat. >> yes, as usual. they are saying goodbye officially to a long-time red skin, mike sellers. he will announce his retirement on monday. according to chick hernandez, he played 11 of 12 years in the nfl in washington and was a fan favorite. the club released him last march. meanwhile today, the skins practiced in shoulder pads for the first time this camp. still 12 days until the preseason opener on august 9. they get tired of hitting each other. left tackle trent williams is looking for redemption after violating the league's drug policy and being suspended without pay for the final four games of the season. williams failed multiple drug tests and one more of those would mean a year-long suspension. as arguably the most important protecter of robert griffin iii, it's time to show he's straightened out. >> i always had a great deal of respect for the game. i just never had fathomed myself not being able to play, you know, due to a mistake that i made personally. you know, not due to injury or anything. yeah, it just -- i ain't going to say it gave me a new found respect, but it put things in perspective. it's here today and could be gone tomorrow. as long as i have a good season, that will probably wouldn't be the topic of interest anymore. so that's all i'm focusing on, just coming out and being the best tremt williams that i can be for this team. >> good luck to him. all good things must come to an end, including the national six-game win streak. he got into trouble after three scoreless innings, and the nats were having issues finding their offense and it's an equation that was destined to doom washington. fans checking out their team in milwaukee. got to love that. last night, wondering if they could get a refund, though, because it wasn't pretty. debtwiler facing cory hart. this is out of there. it's 2-0, milwaukee. bernie brewer loving that one. bottom of the fifth, craig stamon didn't do much better. another two-run home run. this one by ramirez. nats finally threatening with two on, but livon hernandez gets the double play that ends the inning and the nats fall 6-0, shutout for just the third time this season, but the second time in one week. davy johnson, though, was happy with his starter. >> i was pleased with the way det threw the ball. he only made a couple bad pitches with his breaking ball. he hung a couple of breaking balls that -- and that was going to be a game where i'm not going to let him throw a lot of pitches where it doesn't look like we're going to mount much of an attack. i have no complaints with det. he threw the heck out of the ball. >> for three innings, at least. the u.s. women's soccer team kicked off the olympics with a come from behind win over france wednesday. second match, they got ahead early and stayed there, which allowed another unique celebration and a record breaking goal from abby womback. some good footwork by alex morgan. this is launched over the keeper for the goal. usa goes up 1-0. ripino with a birthday message. abby womback with the give and go. she slides past two defenders to knock in the goal. her sixth olympic goal, sets a u.s. record. team usa wins 3-0 to advance to the quarterfinals. the men's basketball team tips off its olympics tomorrow as they take on france. this team, of course, has been repeatedly compared to the famed dream team 20 years ago. kevin durant figures to have a prominent role. a few of the players are seasoned olympic vets, but this is the first olympic games for many of the guys and their first opening ceremonies was an experience to remember. >> beautiful, beautiful moment. very prideful moment just to walk through the field. hear usa being called, just mingling with all the other athletes, talking, hearing some of their stories, just enjoying that moment. >> just walking in the stadium for the first time, hearing people chant "usa" is a humbling feeling. it's something i can't describe with words. so i'm just excited i'm here. >> yeah, a lot of people saying that matchup against france tomorrow is going to be a huge test for them. >> you walk in there and you get choked up thinking about what's ahead. that's the news for now. "nightly news" is next. we'll be bac