Better question, How long since the last one? Many "shootings" took place during the AWB with "so called AW's" including the D.C. Sniper, N.Hollywood shoot out, Columbin School Shootings, and I'm sure that there are others that I can't remember right now. The AWB did jack to stop people from getting shot and turned a bunch of otherwise law biding citizens in to wood be criminals simply because they like certain features on their firearms. ANY firearms law is not only Unconstitutional but won't work for the simple fact that criminals don't follow laws in the first place.