I have no desire to kill, or even do harm to, a human being. My only desire is to cause an attacker to stop attacking. Period. Preferably without causing any harm to anyone. But that may not work so....
Any and all shots that impact an attacker cause wounds. It is my goal to cause enough wounds to make the attacker to stop attacking. And it is unfortunate and tragic if the attacker expires due to those wounds but that was not my goal.
By the way... the idea of shooting to center of mass is generally accepted as torso shots but that isn't the full concept since center of mass really applies to the center of whatever mass is available. That mass could be a knee, foot, hand, elbow, shoulder, head, or leg. Hopefully folks will recognize those peripheral areas are valid center of mass if the torso is not available.