While I've not ever cared much about gun control, the latest tragedy has me thinking about the issue in a different light. Much like Islam being the choice of most religious terrorists, guns seem to be the weapons of choice for lunatic mass murderers. Automatic weapons enable any reasonably motivated to murder dozens of innocents. It is just too simple, too easy, and too convenient. The argument that guns are just a tool used to resonate, but you never see mass casualties with the other weapons of violence. My conclusion is that guns are particularly suited to these lunatics, and enables truly effective murders on their rampages. No other commonly available weapon fits the bill. Much like we all agree that that WMDs should be kept out of the hands of religious extremism, I think we all can agree that semi-automatic weapons should be kept out of the hands of monsters.
This could have been much worse. This guy was better armed than the police, and may have been better trained. Had he shot it out, we'd likely be mourning one or more police officers and a larger death toll. My motivation to defend the right to own these weapons has disappeared.