A Marine explains why the 'mythical head shot' is so lethal

We Are The Mighty This post originally appeared as an answer by Jon Davis to the Quora question: What can kill us so quickly that we wouldn't even know it? Firing just about any caliber round in this area will pretty much kill someone instantly. This is called the “T-box” by police and military security forces because of its obvious shape. When these individuals are placed in lethal force encounters, this area is emphasized as a vital target area, second only to the center of the chest. It i...