Zimmerman Trial: The Defense Calls Its First Witness

Judge Debra Nelson dismissed the defense's request for acquittal. Earlier: Defense attorney Mark O'Mara moved to have the case thrown out for lack of evidence and his client acquitted.

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Monday, July 1, 9:30 a.m. EDT: An FBI audio expert whose pretrial testimony helped keep prosecution witnesses from testifying at George Zimmerman's murder trial has been called to the witness stand, the Associated Press reports. Hirotaka Nakasone took the witness stand Monday to begin the second week of testimony in Zimmerman's second-degree-murder trial. He said that the screams on the 911 tape were not fit for analysis. But he later added that familiarity with a person's voice could help with recorded-voice recognition. 

Read our last set of updates on the Trayvon Martin case here.

Read all of The Root's news and commentary about the Trayvon Martin case here

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