In Oklahoma the law states:

"F. A person who uses force, as permitted pursuant to the provisions of subsections B and D of this section, is justified in using such force and is immune from criminal prosecution and civil action for the use of such force. As used in this subsection, the term 'criminal prosecution' includes charging or prosecuting the defendant."

This means that the defender can't be sued by the dead bad guy's family if the shooting or other use of force meets the criteria of the law.

OSCN Found Document:Physical or Deadly Force Against Intruder

One of the first cases where this law applied, a home invader was beaten down with a can of vegetables and subsequently died of his injuries. I don't thing the police seized all the canned goods in the house.

ECS

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CPT, Armor (Ret)
Luke 22:36

From what I understand, when it comes to law(s), is not how it's written, it's how it's interpreted, which I'm sure has a lot to do with how, or when, it's applied.

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Ogy

"The police also seized Fleming’s collection of firearms including seven rifles and a .38-caliber handgun."

Grandfather Gets Arrested for Holding Burglar at Gunpoint While Waiting for Police to Arrive | The Stir

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Centennial Every Day

It ain't often ol Iggy is speechless, but I am now.

... "not always but often" is true, but look no farther than O.J. Simpson who was found not guilty in his criminal trial, but found liable for wrongful death in his civil trial. Of course, that was merely an expensive nuisance for him until his most recent screw-up. Anyway, if you're found not guilty in a criminal trial, you may find yourself getting sued in a civil trial. It will depend a lot on how the laws are written by the legislature in your state. I would not be thrilled about NY, for example. I wouldn't trust that system any farther than I could throw Chuck Shumer.