Why now?

That's one of the questions I have regarding this release of information in the Zimmerman-Martin affair.

MIAMI –  Court records show George Zimmerman had a pair of black eyes, a nose fracture and two cuts to the back of his head after the fatal shooting of 17-year-old Trayvon Martin.

The medical records were part of evidence released Tuesday that prosecutors have in the second-degree murder case against Zimmerman. He has entered a plea of not guilty and claims self-defense in the Feb. 26 shooting. A message left Tuesday evening with Zimmerman's attorney was not immediately returned.

Did the special prosecutor have this at the time charges were filed?  Did police have knowledge of these records?  Why is this being released now?  Why is court evidence being released to the public prior to trial?

My own hypothesis.  Prosecutors are going to either drop the charges or significantly reduce them.  Rather than have a Rodney King type situation erupt at that news, or a backlash against the prosecutor and police, they are trying to pave the way for the news with releases of information that shows there's no case to be made against Zimmerman.

Let's see what plays out.  Thanks to Fox News for the story.