You know, if someone has broken your nose and is repeatedly smashing the back of your head into a concrete sidewalk without any apparent intention of stopping, I would seriously say that your life is in immediate danger. A skull crushed into fragments will do it every time. Imagine that your assailant is between 6’ and 6’ 3” and fit, you are 5’7” and out of shape.
What is being said, however, is that Trayvon threatened to kill Zimmerman and went for Zimmerman’s gun. These elements, in addition to the pummeling, justify Zimmerman firing his weapon in self-defense. Still, if it were possible, Zimmerman should have shot to wound. Under these circumstance’s, Trayvon’s death is a tragic accident. Remove one or two of the elements of self-defense, and we’re talking manslaughter. Remove enough of the elements, and we’re talking murder. The police on the scene that the wasn’t enough elements to arrest Zimmerman on the spot and the District Attorney has empaneled a grand jury to see if there is probable cause. The system is working the way it should.