WATCH: Trayvon Martin's mother identifies her son's screaming voice
Sybrina Fulton takes the stand in George Zimmerman's murder trial
Trayvon Martin's mother, Sybrina Fulton, testified early Friday morning in George Zimmerman's murder trial. The defense played a chilling recording of the 911 call placed the night Martin was killed. When asked who was screaming in the background, Fulton replied, "Trayvon Benjamin Martin."
A voice recognition expert had said that only a family member would be able to identify the voice on the 911 call.