you never shoot to wound and you never shoot to kill.
...what do you shoot to do, then...?
You shoot untill the aggressive actions stop...
Stop the threat or neutralize. Many times officers began CPR after shooting individual.
Easy. You KEEP SHOOTING UNTIL THE THREAT IS OVER.
I teach in my CCW class. Do not fire warning shots, do not fire maiming shots (unless necessary), AND NEVER, EVER DO YOU shoot "to kill". You shoot to live. Only shoot enought to stop the threat. Reload, re-evaluate, when safe call the police. And yes, the DO will ask you if you shot to kill. Your answer is, "No, I shot to live......
.....and "I was in fear for my life, that person tried to kill me, had to shoot in order to preserve my life (or an innocent 3rd party)
....and I WOULD BE MORE THAN HAPPY TO HELP YOU WITH YOUR INVESTIGATION OFFICER, BUY MY CHEST HURTS, I CANT BREATH, I NEED MEDICAL ATTENTION, AND I WILL MAKE ALL FURTHER STATEMENTS WITH MY ATTORNEY PRESENT!"