George Zimmerman's defense attorney Don West, right, presents state witness Dr. Hirotaka Nakasone, left, a senior voice recognition scientist with the FBI, with a marked exhibit as Nakasone testifies ... more 
George Zimmerman's defense attorney Don West, right, presents state witness Dr. Hirotaka Nakasone, left, a senior voice recognition scientist with the FBI, with a marked exhibit as Nakasone testifies in the Zimmerman's trial in Seminole circuit court, in Sanford, Fla., Monday, July 1, 2013. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.(AP Photo/Orlando Sentinel, Joe Burbank, Pool) less 
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Associated Press | Photo By Orlando Sentinel, Joe Burbank, Pool
Mon, Jul 1, 2013 5:54 PM EDT