terrible week in las vegas. and so many other places that lost neighbors, friends, parents, children. in just a little while anderson presents an hour long tribute to the fallen through the eyes of the people who knew them best. this is called las vegas lost. remembering the victims. it airs tonight at 9:00 p.m. eastern time right here on cnn. and coming up forth us, more on the explosives. the tannerite found in the killer's vehicle. a close r look at what it is capable of. and later we'll talk to one of the hurricane chasers in a plane in the storm itself about what he is seeing and what it means for everyone in nate's path.