Interesting ... going over the news reports and posted audio files of the Martin-Zimmerman situation at the moment. I'm not liking what I am thinking.
Zimmerman was supposedly on neighborhood patrol and spotted Trayvon Martin walking through an apartment complex. Zimmerman called 911 to report this as he was following Trayvon. Trayvon, by Zimmerman's own words, started running away after noticing he was being followed by Zimmerman. Zimmerman was told by police NOT to pursue. He was suppose to wait by the mailboxes of the complex for a patrol car. This was at this point in time that, according to Trayvon's girlfriend, Trayvon was on the phone with her saying he was being followed and heard the confrontation starting between Trayvon and Zimmerman before the phone went dead. In another 911 call (from a female resident of the complex), you can hear a young male voice in the background screaming for help, then a gunshot.
$100 says when the tapes are evaluated, the one screaming for help was Trayvon and not Zimmerman. This audio needs to be compared to Zimmerman's voice and (if available) a recording of Trayvon's to determine who was screaming for help. At very least, this will force a full investigation into this incident instead of the sloppy mess we have witnessed over the past month. If the voice is Zimmerman calling for help, that would support his claim of self defense. If not, Zimmerman needs to be arrested and charged with murder and the police officers who failed to conduct a proper investigation need to be seriously disciplined for dereliction of duty.