Absolutely comes down to "right to defend law" and wether you have the right to defend yourself against an aggresor. This case comes down to who is the percieved aggresor. Our society needs to address what is right when using deadly force. Many have guns and it is a fine line when to use and not to use. It can literally be a split second decision. Glad I have never had to make that choice. Could you? Where is the line, your family, your stuff, inside your house? Until you are faced with a situation like this you may not know what you will do.
I am licsensed to carry and stilll it is a choice you have to make in a split second, hope I never have to or if I do that I make the correct decision, as it could mean my life.