I'm not sure if a broken nose can be "100% diagnosed without xray," but what difference does that make? I've been around sports enough to know what a broken nose looks like. And the doctor said he had a broken nose, so who cares what you or I think anyway?
You're saying Martin used "minimal force" to punch Zimmerman in the nose and break it. What the heck is "minimal force"? It's not like they were slap boxing. lol You can't just tap someone on the nose and break it.
So you are disagreeing with the doctor's diagnosis of a broken nose. And yes, the fact (it is a fact) that he had broken nose and cuts on the back of his head makes a huge difference. It supports his story. So do the pictures. So do several witnesses.
But hey you are free to disagree with his doctor:
"A medical report compiled by the family physician of Trayvon Martin shooter George Zimmerman and obtained exclusively by ABC News found that Zimmerman was diagnosed with a "closed fracture" of his nose, a pair of black eyes, two lacerations to the back of his head and a minor back injury the day after he fatally shot Martin during an alleged altercation."
http://abcnews.go.com/US/george-zimmerman-medical-report-sheds-light-injuries-trayvon/story?id=16353532
Reading your posts I'm actually beginning to wonder whether or not English is your first language.
Where did I say Trayvon used "minimal force" to break Zimmerman's nose ? I said it does not take a great deal of force to break the nose, which is true, go look it up, the nose is one of the most fragile structures in the body as it is mainly made up of cartilage and is renowned for being easy to break.
And as I said in last post, no it doesn't make much difference whether his nose was broken or not because from the very clear pics from the police station we can see that Zimmerman did not look more than a little bumped and bruised. Did not look like a guy who had just been a fight that would make a reasonable person fear for their life.
But then again nothing Zimmerman did that night appears to be the actions of a reasonable person, more like the actions of an unstable vigilante who had watched one too many TV cop shows.
I think I have seen it reported that Zimmerman was on prescribed medication for some sort of mental condition and insomnia, that would possibly shed some light on why this guy was acting in such an unhinged fashion.