news 4's meagan mcgrath is live at the chesapeake bay bridge at the toll booth. how is traffic looking right now, meagan? >> reporter: well, you can see behind me live here at the toll booth this can often be a choke point, and right now everything is looking pretty good. you can see that we have a slight -- a little bit of a slowdown here especially in the lanes where people are paying cash. but the ez pass, only lanes in the far left, those folks pretty much going right through. we have a slowdown once you get through the toll booth itself because we have 11 lanes going into three lanes. so there is a little bit of drag, but once you get that merge taken back up on the bridge. so great time to leave. that's what the experts had said. they predicted actually yesterday would be the peak travel day for a lot of people leaving town and that today would not be as bad. and that's what we're seeing out here this morning. they say that the best time to leave today is 11:00 a.m., so really right now if you're going to be crossing the bridge that's your best time. in term

also interesting when we think back that meagan mcgrath reported earlier that reporters insight that they had some clue that he was not far from the shooting scene. what you're seeing here is what's left over from that deadly shooting scene outside the giant shopping center. we are at connecticut avenue at aspen hill road. after shooting three victims allegedly at the montgomeryville mall, he drove here and shot and killed a woman. that woman has not yet been identified. chief manger doing his press conference did not indicate the victim, who she was, where she's from. that's one thing we're hoping to find out. we did see that the victim was shot apparently right outside of her car, and that car was towed from this area a short time ago. police are still here collecting evidence, doing some it's a much s scene than we've seen today. you're going to hear from the man i interviewed while this was still happening. he had a little sister who was in school on lockdown. >> well, i'm kind of quite shocked. i have a little 12-year-old sister still in school. they just called my mom saying ev

news 4's meagan mcgrath has a look. >> reporter: aquatic gardens, a park teeming with wildlife. >> lotserent small fish. >> reporter: and it's the job of the national park service to keep an eye on things, to document what's in the parks and make sure everything is thriving. >> you know, we're over here in kennelworth in d.c., and in this magical garden. >> reporter: it's not an easy task. it requires a lot of manpower, so the national park service is enlisting the help of volunteers, folks willing to get in boats, grab nets and other tools and count the critters. >> we're on a quest to discover everything, so we're looking for spiders and dragon flies, we're going to be doing some acoustic sound monitoring to bats in constitution gardens on the national mall. >> reporter: it's called bioblitz, volunteers will fan out in national parks around the country, 13 in our area. don't worry if you don't know anything about wildlife. >> you can take a picture of what you see, so even if you don't know what it is, a scientist can help identify it. >> it's kind of nice we can get out today. >> tod