Sad when a persons right to defend oneself has to be defined by lawyers. 100 years ago this would have never been questioned. Natural law over man made law, or even a rat will bite you if he is cornered.
You can bet there were be murderers who use self defense as an excuse for executing someone they hate. In the aftermath of the Trayvon race bait hoodie klan ‘protests’, jacked up black racists on the internet talked about using SYG in defense of murdering whitey.
Given the recent conviction of that retired firefighter in Texas who murdered his neighbor, it seems SYG does not accidently protect murderers/predators. Police have to be careful of this con game.