The conflicting reports of what happened the night George Zimmmerman shot 17-year-old Trayvon Martin continue to pick up their respective evidence. The latest piece of the puzzle is enhanced surveillance footage of the police station where Zimmerman was taken afterward, which now appears to show a possible gash or injury on the back of his head. The footage was originally touted as showing the opposite. Both the video footage and the audio of Zimmerman’s 911 call have been intensely debated, and both sides have claimed them as evidence for their account of the shooting.