39 911 News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Charleston floods if you get 4 inches of rain fall. elevation is zero. but the high and low tide mean everything. at 11:41, it's high tide. if this land fall is at noon, that means that surge will be four to 7 feet in. if it's at low tide, then maybe just maybe we'll only get a couple of feet. look at the inundation map in charleston where you can see how much all the rivers, anybody who lives along these water ways is looking at three to 6 feet. again, don, you know historic charleston, they are going to be inundated, and i know that emergency services are standing by because we may have many...

Incident incident. the dispatcher calls law enforcement folks on the scene. they'll add into that of the information they get from witnesses, whether thoesz are police officers or. the most critical information is from the actual child survivors. that's as you would understand as a mom incredibly sensitive thing to do to be able to sit down with some of those children and able to talk about their experiences and what they saw and what they said to each other, maybe if they made those 9 911 phone calls. you lay-in all of those information, the narrative that you get from those interviews on top...

I'm jim sciutto. >> i'm erica hill. the jury deliberating for a second day in the trial of three men accused of killing ahmaud arbery. travis mcmichael, greg mcmichael and neighbor william roddi bryan. the jury just requested to review and just reviewed three -- just wanted to see a piece of video evidence and a 9 911 call. >> a shocking moment in that courtroom to see video repeatedly of the shooting death of ahmaud arbery. let's begin in brunswick, georgia, cnn national correspondent sara sidner outside the courthouse. what are you hearing from others perhaps trying to judge the significance...

Those toxins, sign up now while your witnesses are still around, because you're going to have to prove with two witnesses that you were exposed to that dust, that you were working downtown or living downtown, and as the years go on, it's going to be harder and harder to find those witnesses. so there is so much information out there. i know we don't have a lot of time, but if your viewers go to 9 911victimfund.com. they'll learn a lot more about how to sign up for the free nationwide health program. >> they should sign up -- excuse me -- even if they don't have a 9/11-related illness right now...

Those storms that you can bring to this one? >> well, we learned a lot of lessons. we do 700 exercises across our full range of response operations every year. we pulled some lessons forward that harvey. harvey was inland and we rescued 20,000 people. we've got helicopters with realtime tracking in response areas and made some changes of how we process social media. >> what changes. you say you made changes how you process social media, more people monitoring it? >> we're not well staffed. in a surge situation like this we're paying more attention to the social media. we encourage people to us...