As in MMJ laws people need to educate themselves with the gun laws in there state.
Here in Washington you can shoot an unarmed person outside of your house but you have to be sure to know what to say when the cops show up and the best bet would be to say nothing when the cops show up. But in court all you have to say is that the perp threatened to kill you or your family. Then your covered for the right to use deadly force. Do not get into discussions with the police when they show up. It will just be used against you.