One less scumbag, that's a good thing.
In Tennessee if they are in your house you have a reasonable right to assume they mean you or your family bodily harm, whether they are armed or not. It don't matter what direction they are facing when you shoot them. Outside the home is different you must be in fear of bodily harm from an attacker, if you draw a weapon and the attacker runs you can't shoot.
South Carolina has the best gun law I've ever seen. Any resident can carry a weapon in the the console or glove box of the car. What I don't like about SC gun laws are they do not honnor any other states carry permits.