I don't support 'assholes carrying concealed or gang bangers with assault weapons' either, but there has to be a way to stop them, without stopping the legal gun owners as well.
http://usnews.msnbc.msn.com/_news/2012/02/25/10503430-da-mass-cop-shoots-police-officer-returns-to-scene-and-kills-self
BEVERLY, Mass. -- An off-duty police sergeant shot a police officer from a nearby town in Northeastern Massachusetts Friday night, then returned to the scene and killed himself as authorities closed in, the local district attorney said.