This affidavit is the functional equivalent of a grand jury indicting the proverbial ham sandwich. While some of it makes no sense ("Martin was trying to run home"), some of it is just laughable (Martin's mother identifying the voice on the tape as Martin's.) Just what the hell would anyone expect her to say? "No that's not my kid screaming it must be Zimmerman?"
Gimme a break. This is Nifonging at its worst.