Speedy recover for the woman who was injured.
I agree with others who have said this was a situational awareness issue first, and an issue of being armed second. Most violent crime that happens outside of the home will tend occur when you are coming or going from somewhere (hence all the threads on Wal-Mart and other parking lots). This is why its always a good idea to take an extra microsecond to look around before entering or exiting a building, home, or vehicle. People tend to develop tunnel vision at these times, which can be exploited by the bad guys.
I agree with others who have said this was a situational awareness issue first, and an issue of being armed second. Most violent crime that happens outside of the home will tend occur when you are coming or going from somewhere (hence all the threads on Wal-Mart and other parking lots). This is why its always a good idea to take an extra microsecond to look around before entering or exiting a building, home, or vehicle. People tend to develop tunnel vision at these times, which can be exploited by the bad guys.