Well, the drift of this article is clear. Here are two apple-pie mom's, just out to do right by their families, and now one is dead because of a gun. It could happen to anyone, they infer. This could be you or your wife - none of us can be trusted with guns, they're way too dangerous. This wasn't the fault of Henson or Foster - there are just toooooo many guns. The police chief is singing the tune they all sing - too bad they so seldom talk with their beat officers.
Now, as a lesson in self control, as an encouragement for training and knowledge, and as an example of the importance of maturity, then the story is fine. But, that isn't the tone of the story, is it?
This altercation went on for miles, and was fed by each of them. I don't buy the line that Foster approached Henson to 'straighten everything out', unless that includes verbally abusing Henson, at best. If Foster had anything in her hands, or made a furtive move, then Henson may have had a difficult decision. After all, she had stayed in her car, and was blocked by Foster. OTOH, it sounds like Henson didn't have enough training to think fast enough in this situation.
If we keep passing laws in the country to fit the lowest common denominator, then we'll all be treated like children. And, then we can all claim a defense for all of our actions like Henson probably will - I was scared, I didn't mean to, I didn't know the gun would go off, I'm just a nice mom, blah, blah, blah. What a pitiful waste. I'm sure the anti-self defense crowd has already added this one to their quiver.