matt jablo joins us live. >> reporter: it happened right where i'm standing. when it was over, an eight-year- old boy was dead. five hours later the reconstruction team were still trying to piece together details of a terrible accident. according to police a fairfax county man was driving near i- 395 in his honda accord. police say for some reason the accord suddenly went off the side of the road and hit a woman and her son. tragically the eight-year-old boy died at that time scene while his mother was taken to a nearby hospital. the driver of the accord, meanwhile, who remained at the scene, was not injured. police have not released the name of the driver or of the eight-year-old boy who was killed. they're also not saying if they believe drugs or alcohol played a role in the accident. >> matt jablow, thanks a lot. >>> that missing howard university student that we've been telling you about for the past couple days, a spokesperson says the university and prince george's county police have located arianna carr at an undisclosed location in hyattsville, marylan

>> matt jablo, thank you. >>> an update on a body found down deep in a well in fort washington. prince georges county police say they won't be able to remove the body until tomorrow. now, somebody called police, tipped them off to the location, in the 11900 block of old fort road. officers lowered a camera where they found the remains. they haven't released anymore information about that victim. alexandria city police were also on hand but with not say what their role is in todays investigation. >>> tonight the fbi releases chilling video of a man firing shots at the national museum of the marine corps. we now know who that masked man is. investigators say in a two week span he fired at that museum twice as well as a coast guard recruiting office in woodbridge. a marine corps recruiting station and the pentagon. we were in courtroom when he plead guilty to these crimes. >> blasting music, the 23-year- old makes his way to the marine corps museum in virginia. >> it's a military building and that's a building of target. >> seconds later he turns the camera on himself, and he gets

matt jablo, cbs news. >> now, that will be the lead agency in this investigation. derek? >> well, leslie, you know this. today is just another example of how mild our winter has been so far, but up to the north and the west, forget about it. this is what it looks like in massachusetts today. and this storm, they really hit at the height of the morning commute and another storm that is hitting the midwest right now. >> reporter: i'm here in south bend where 8 to 15 inches of snow is expected to hit portions of our viewing area. but the crews, they are not waiting for the snowflakes to fall. we want to show you the video now. road crews, they were out on the roadways this morning, putting down the prime solution to make the erodes easy to travel on, and to make the snow easier to plow. >> if you are sort of chuckling a bit, you might want to think again. he has been down and he says that the cold and the reality is headed our way as well. topper? >> reporter: yeah, i mean, not the 8 to 16 inches of snow, unfortunately, but yes, the cold air is about 12 hours away. not even