Agreed. In a deadly force situation killing is only an unfortunate side effect. The idea is to neutralize the threat immediately. A shot that is not to the center of mass A) may miss B) May give the offender a chance to return fire. Anyone who kills a suspect has to carry guilt with them for the rest of their lives justifed or not but at the end of the day it's about going home to their wife and kids.
If I had found deer hunting in high school, I'd never have gone to college!