The instructor was an idiot who got what was coming to him.
The parents are idiots for letting their 9 year old near that thing to begin with.
Sterilize the parents so they can't pass their idiocy on to another generation. Sterilize the girl so she can't either.
Hopefully Darwin will work his magic in the long run and our country will be rid if these idiots for good.
Why? Clearly she didn't mean to and this will haunt her for the rest of her life. I would think she would learn from this and rebel against (what in my opinion is) her gun nut parents.