George Zimmerman says he never followed Trayvon Martin. He says repeatedly in interviews that Trayvon punched him in the nose, knocked him backward to the ground, held him down and beat him. Zimmerman was walking on an east/west sidewalk back to his truck. Trayvon came from the south. So if Zimmerman shot Trayvon south of the sidewalk, then he was fearlessly chasing Trayvon with a loaded weapon instead of walking40ft. PUNCH?