Photos confirm George Zimmerman's head was actually bleeding:

The image shows blood trickling down Zimmerman's head from two cuts, and a possible contusion on the crown of his head. It was released right before Zimmerman's attorneys attended a bail hearing, which could result in his release from a Florida jail while he awaits trial. Zimmerman, 28, is being held on second-degree murder charges for shooting 17-year-old Martin on Feb. 26, if convicted, he could face up to life in prison.
This of course points to imprudence of drawing conclusions from grainy video-tape. And even still, it's probably not worth drawing too much from the photo. I speak only for myself, but it's always been my contention that I could very easily see how Martin, fully within his rights to walk back to his father's home, could judge a strange man following him to be possessed of ill-intent.

What always shook me about this case, was not the belief that Zimmerman ruthlessly slaughtered a 17-year old child, but the act of putting myself in that child's place, and seeing how I just as easily have ended making a decision to defend myself.

A word on comments. Please save us your career retrospective on Al Sharpton. It just isn't very interesting. Or relevant. Don't expect them to stick around.