The murder trial of George Zimmerman, the man who shot and killed unarmed teenager Trayvon Martin, is set to begin. A judge's ruling on expert analysis of 911 calls made by neighbors that night could ... more 
The murder trial of George Zimmerman, the man who shot and killed unarmed teenager Trayvon Martin, is set to begin. A judge's ruling on expert analysis of 911 calls made by neighbors that night could have a big effect on the trial's outcome. Terrell Brown reports. less 
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Sat, Jun 22, 2013 7:40 PM EDT