trayvon martin was shot and killed, could be a key piece of evidence. he had a closed fracture of his nose, two black eyes, two cuts to the back of his head in a minor back injury. i want to go to martin savidge covering the story for us. with all these new details and developments does it help zimmerman s argument he was in fact standing his ground they killed trayvon martin in self-defense? reporter: it depends on who you talk to. here s the way it breaks down. this information coming from the prosecution, the special prosecutor angela corey, they had to provide the basics of their investigation over to the defense so that s why we re starting to see this information come out this week. two reports caught her eye, the autopsy report on trayvon martin and that s the one you re referring to that says bruising on the hands of trayvon martin that would seem to support the defense s claim that george zimmerman says that trayvon martin came up to him, punched him in the nose, k