Bad logic:

I have been following this closely, particularly the reaction and arguments from the "pro gun" side. They are literally insane, in that their reasoning is entirely fallacious. One of their favorite tricks is to examine a particular case (like the one in Connecticut) and either claim that gun restrictions could have been evaded, or alternatively, that there is a scenario where Rambo steps in and stops the crime. But in life things are rarely so cleanly cause-and-effect, which is why aggregate numbers (aka statistics) are the proper way to determine what works or not. The record is clear. In places (like Australia) where semi-automatic rifles and pistols are banned - along with a substantial buy-back program - homicides decline substantially.