Anytime someone asks "what caliber should I use for big game?" The response is "shot placement is the most important factor. Shoot accurately and any of the popular calibers will work." If that's our answer for big game, why should it be any different for a two legged animal?
That said, that Mom in GA put five .38 special in that dudes face and neck and he lived...he stopped attacking, which is the goal, but he lived. Great shot placement if you ask me. However I have a hard time believing he would have lived with five 9, 40, 45, etc. in the face region.