ron carson. we spotted him wh a full suit, black suit. so thejt ron carson sheer that he spent many years work flooding heartbt, or headache. keep an eye out for those.ti as menoned we are not in the clear just yet. should you feel something like that, call 911. and stay with news4 and our nbc washington app for continuing coverage for ideas on how to stay cool during this scorching hot weather. just open our nbc washington app and search "extreme heat." >>> 50 years ago tonight, one mall step changed history forever. find out how people are ng rememberi the "apollo 11" moon landing. >>> and explosive surveillance video shows the exact moment a blast rocked a california home, killing a utirkty wor. what crews were doing when the we're the slowskys. we like drip coffee, layovers- -anwaiting on hold. what we don't like is relying on fancy technology for help. snail mail! we were invited to a y2k party...'t uh, didn that happen, like, 20 years ago? oh, look, karolyn, we've got a mathematician on our hands! check it out! now you can schedule

the idea for ron carson's cool actions that came to him while sweating out presidential hit. secret service types love it. >> anyone in these hot temperatures in d.c. have to wear a suit, not necessarily because they want to, because they have to. >> swimsuits in this pool in ft. washington. they're mobilizing for the heat, offering a few free hours of pool time this weekend as well as 16 cooling centers. common sense is free too. >>please be safe. >> don't over exert yourself, stayydrated and look out for others who may be in distress from the heat. >> if you're out with the mobil it to be able to identify individuals who are in need of shelter. >> derek ward, news 4. >> heat stroke can set in pretty quickly on days like today. lack of sweating, rapid heartbeat. if you or someone with you has experienced these, you may wa to call 911. please be careful. sorry about that, folks, having a little bit of technical difficulties. >>> in otherews tonight, d.c. police need help solving the murders of a father and son, at rela discovering the bodies yesterday, their home on queen str