Well, I just hope they took pictures of Zimmerman at the scene that night because they didn't collect his clothes (that was supposed to have blood on them). If there are no pictures of his bleeding injuries... it was a big mistake by the Sanford Police. There would be no way to tell the extent of the bleeding and all anyone will see is this video... where it appears Zimmerman is no where near as injured as it was made out to be.
EMT's who treated him onsite would certainly have notes.