Residents of Sanford are still outraged over the killing of 17-year-old Trayvon Martin by neighborhood watch captain George Zimmerman. Zimmerman says he shot the Martin in self-defense, but many are saying that he racially profiled the teen.

An audio engineer from CNN has enhanced audio of the call that George Zimmerman made to 911 and it sounds like he may have used a racial slur. We can’t say whether he did or didn’t, but you can judge for yourself.

CLICK HERE TO LISTEN TO THE 911 AUDIO OF GEORGE ZIMMERMAN