Here in Washington they are very liberal about using deadly force. If they are inside the house its completely justified. If someone has made a verbal threat against you and you feel immediately threatened you are allowed to use deadly force. I've had 2 opportunities to use deadly force and elected not to. One was a break in of a business and I happened to be there with my 45. The guy chased me with a 2X4. I just got in my truck and dialed 911 and blocked the driveway. The 2 guys were stealing food and I just didn't think stealing food was a death penalty reason.