Never know what the law Will say about this.
I want to be the devils advocate here for the Family of the dead member.

Family " Our little Billy had a problem, he was born With mental problems and got into trouble all the time. We in the family were helpless to help him, we hated his acts but loved him anyway. We have been advised by Pastors and mental health experts to love the person even as we hated his actions.
Billy was not in a right mind when he broke into this woman's house, he carried only a knife and when the woman shot him the first time he tried to run, to escape. This woman shot him in the back as he tried to run, he was at that time no threat to her, he had dropped the knife and was now running for his life.
As family we have now suffered the loss of a family member and feel he was executed for a simple breaking and entering, we have just the word of the home owner about what they thought his intentions were. How did the home owner read his mind and decide he was about to rape her.???? "
You can see where I am going here, the home owner over reacted and after the first shot hit him and he tried to get away, the home owner shot him in the back, emptied her gun into a helpless man as he tried to escape.
This is now over kill, he was murdered with fore thought and malice. The young man was no longer anykind of threat yet the home owner kept shooting him until he was dead.
Her own words she admits to shooting him all she could.
So now a liberal court has to decide if a Civil Court should award them damages and make her pay them for the rest of her life for their being deprived of the company of their family member.
Moral of my story is that only a fool has a 22 for self defence. Had the first shot killed him, say she had a higher power weapon, up to a 50 odd Buffalo Gun no problem.
Shit like this happens every day somewhere. People that defend themselves in all situations are penilised for their actions.
Check out your work policy about fights, horrid in most places non union, if a stranger belts you in the chops and you do not react both of you can be fired for fighting. Some States are insane on laws, we had a case up here when some dude in a bar kept taunting a man for being gay. The Bully kept it up and when his target ignored him, the Bully began to poke his finger hard into the targets chest and the target smaked the bully in the nose. Both were arrested for fighting, the court concluded the picked on man should have just walked away and found another bar to drink in. The picked on man had to pay the bullys medical bill for a broken nose.
This is New Hampshire Sparkys neck of the woods. Bullys win if their target fights back, good way to raise sons, if picked on, Run Away, Run Away.