Mothers of Martin, Zimmerman take the stand


The prosecutors rested their case in the George Zimmerman trial on Friday, and the defense called its first witness: Zimmerman’s mother. She testified that it was her son screaming during the 911 call, not Trayvon Martin. Earlier in the day, Martin’s mother said it was her son screaming on the 911 tape. Zimmerman has pleaded not guilty to second-degree murder in the shooting death of Trayvon Martin. NBC’s Ron Mott reports.

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