No. Sorry, it's may be the prosecutor's choice, but all choices assume the act was unlawful.
Well, no they don't. That's why I posted these definitions.
Involuntary manslaughter: "recklessness or criminal negligence": the guy shot into the dark, apparently knowing only that a motion sensor had registered something.
It could have been a child. Maybe even his own. Do you shoot at things you can't see?
Murder 2: "1) an intentional killing that is not premeditated or planned, nor committed in a reasonable "heat of passion"; or 2) a killing caused by dangerous conduct and the offender's obvious lack of concern for human life." -- certainly "dangerous conduct and the offender's obvious lack of concern for human life" apply.
Voluntary Manslaughter: "The circumstances leading to the killing must be the kind that would cause a reasonable person to become emotionally or mentally disturbed" -- the guy shot into the dark. That sounds "emotionally or mentally disturbed" to me.
Obviously when I say "prosecutor's choice" I'm saying that any of the above may be applied, from what we know here.
Montana law says a homeowner can use deadly force against an unlawful intruder if he believes himself or others to be in danger. The onus is on the state to prove he was NOT in fear for his life and well being. They can go ahead with the case, if they like, but #1, it will be nearly impossible to find a jury in Montana willing to convict and #2, any conviction is 100% sure to be overturned on appeal. The law is quite plain. The homeowner was within his rights to protect his self and family.
Once again, as already stated, in order to "self-defend" you must have something to self-defend against. If you're shooting into a dark garage and you don't even know who or what you're shooting at, then you're not gonna be able to make a case that you believe anybody to be in danger.
You can't have it both ways; either there's a known threat or an unknown unknown. For a known danger, you defend; but for an unknown there's only one defense, and that's to determine what you're dealing with. That's what this guy failed to do. The man SHOT INTO THE DARK. Literally. Therefore what he was shooting at was his own imagination. Rotsa ruck making a case for self-defense against one's own imagination.
If you know there is a person in your darkened garage, you have to assume he is armed because if you don't and you are wrong, YOU are the victim. I refuse to be a willing victim.
I have to question just how dark WAS the garage? The home owner had enough light to hit the perp twice. It was likely light enough to see a person clearly enough to aim.
"If you assume and you are wrong" isn't an argument. You need evidence that whoever/whatever was in there posed a threat. Imagination and fear of the dark isn't evidence.