let's go scott macfarlane at the live desk. >> aaron alexis 'em ployer revoked his access to informationpened six weeks before the navy yard shooting. the report said the company never informed the navy. aaron alexis was a computer contractor at the navy yard. his employ year, the experts based in ft. lauderdale, florida. at the live desk, i'm scott arnow, to the wicked weather. >> an incredibly huge drop in the mercury is on the way. we are talking as much as 40 dgsz. meteorologist, veronica johnson is tracking this arctic blast. when is it going to hit us, veronica? >> it really hits saturday evening. a lot of re going to say what cold air are you talking about? you can be assured, it is coming. high clouds, yes, overcast and rainshowers coming down right now. so, some wet roads, a few drops hitting your windshield if you are heading out. in terms of temperatures here, as we take a look and head into your neighborhood, our temperatures are dropping down into the 40s. it's not going to get all that cold, even for tomorrow morning. i have chilly conditions as we drop to 43 to 44 degrees.