I thought we were talking about strangers firing a weapon on my property,not me or a family member.Try again please.
OK...a magazine salesman,not intending to hurt anyone,arrives at your door and is greeted by the same schizophrenic son/grandson.Your kin rushes the salesman with the knife,yelling and screaming.The salesman happens to be packing (legally).Your kin gets the worst of the encounter.The autopsy shows the brain deterioration that's characteristic of early/mid state schizophrenia.
Or I could place a variation of the the Zimmerman/Saint Trayvon incident in your front yard.The evidence that I've seen certainly suggests (strongly suggests) that Zimmerman had "damn good reason".
mid *stage* schizophrenia.