he received on the night. dan abrams is here. quite dramatic new evidence abc's unearthed. >> matt gutman has seen the medical records now of george zimmerman's own doctor. and the doctor's records indicate that george zimmerman appeared to have a broken nose, had lacerations on his head. just as many of his supporters have been alleging now for many months. the problem, of course, for george zimmerman is this doesn't necessarily clear him. it doesn't necessarily mean he's going to win. because the question still remains who started the altercation? >> isn't that the key question? >> it's absolutely the key. you can't start a fight, start losing the fight, and then use deadly force. that's not the way it works. >> this is george zimmerman's own doctor. >> that's right. >> so he knew him. >> yep. >> when do you think we treated him? >> this is the morning after. it was shortly thereafter. the doctor in the records talked