“I would think that 99% of people with or without training would know not to shoot to someone given the same situation.”
Intellectually knowing and emotionally panicking are two different things. The military spends a lot of time training soldiers, trying to de-sensitize them to the reality of battle, but when soldiers are faced with a real situation some will panic and run away, some will panic and kill civilians or even their own troops in a friendly fire incident (like what happened to Pat Tillman).
If someone is panicked, they are in a flight or fight mode and training can’t always contain that. In cold light of day it seems obvious (ie the woman was outside the car, wasn’t armed, the partner wasn’t panicking in the driver’s seat, this wasn’t exactly the South Bronx in 1977). but something may have triggered the guy to shoot her, maybe firecrackers went off and he thought it was gunfire. That doesn’t take away from what he did, obviously, panic as a defense shouldn’t be allowed for cops (though it often is, they call that “he had reason to fear for his life”, as in “the officer heard sounds that sounded like gunshots and reacted”). The irony is if you as a citizen panic and shoot and kill someone because you were startled, they likely would charge you with manslaughter, even though you likely haven’t been trained, cops who are supposed to be trained IME often get off with “officer had reason to fear for his life”.
@ucbalumnus :
You are correct that other countries have higher gun homicide rates, but you are also comparing apples to oranges. The countries with worse murder rates are third world countries where the rule of law is not always present and where they have things like armed resistance movements and the like, not to mention many of them are poor where crime is rampant at rates that are way above the US.
What is startling is if you compare the US to peers, like Canada, the UK, and the rest of industrialized Europe and Eastern Europe, and there it is glaring, we are many, many multiples removed from the other countries (Canada which is similar to the US in some ways, is 5 times less on total homicides and a little over 4 times in homicides (like most countries, the US and Canada have as the largest component with gun deaths suicides, but the murder rate in Canada is around 4 times smaller than the US). A lot of that is likely the access to guns, people talk about access to guns in Switzerland, for example, but the gun ownership rate is about a 1/5 of the US.