Several commenters at different sites are speculating if Zimmerman, the so called watchman who murdered Tryvon Martin, uttered a racial slur.
They want to wait for a forensic specialist to enhance the 911 call. We don't need to wait. In five minutes using off-the-shelf Audacity recording software I enhanced the key snippet enough for you to hear what the scumbag said during the 911 call. I reduced the noise and then put the file through a compressor. I increased the gain to make it easier to understand. Listen carefully.
I recognize that it will take a court recognized expert witness to do the same thing, but it's pretty obvious to me.
Zimmerman is no "watchman" as the media dubbed him. Watchman invokes a kind of security specialist that monitors empty buildings at night to provide security.
He is just a simple racist thug, trying to be a hero to others of his ilk. I hope the local sheriff doesn't help him get away with it. Self-defense, my ass.
This is what I hear:
Zimmerman, (almost whispered) "...______"
911 Operator, "are you following him..."
I cut off the digital file at that point to keep the wave file small. I first wrote in the blank what I heard, but then thought that might prejudice you. You know, the power of suggestion; so listen for yourself.
I'm sorry you have to download the file, it was the best I could do to get this out quickly. Click on this link and listen to the wave file. You be the judge.