As I just answered about an hour ago this is called the T-zone used by snipers because a sniper shot to this place will instantly kill a person due to hitting the brain stem but I wouldn´t count on dying instantly or even at all if you shot yourself in the nose with a 9mm handgun but through the eye sure that is how George Hennard killed himself with a gunshot wound to the eye using a Glock 17 9mm you can easily find that picture on google.
Read this article below I am a bit tired of repeating myself again and again.
Ever wonder what it would be like to get shot in the head, or have your face smash into a car's windshield? Well, you can stop wondering, because you'll never know — even if it does happen to you.
io9.gizmodo.com