SANFORD, Fla. (AP) — George Zimmerman's mother says it was her son's screams that can be heard in the background of a 911 call recorded the night her son fatally shot Trayvon Martin.
Defense attorney Mark O'Mara played the 911 call in court after Gladys Zimmerman took the witness stand Friday.
When O'Mara asked her whose voice was screaming, she answered "My son."
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