[Rick Lee]

In AZ if someone is trying to forcibly enter an occupied car, it's called carjacking and you can legally kill them. If I saw it happen to someone else, I'd be a good witness. I'm not risking financial ruin or a prison sentence to help an unarmed stranger. Besides, unless you were involved in the incident from the beginnng, it'd be pretty hard to know who the victim is and who the aggressor is. Let the cops figure it out.