Dotun Adebabyo speaks to Sybrina Fulton the mother of Trayvon Martin

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50 years on from Dr King's speech, the Travyon Martin case shows race is still a divisive issue in the US after the 17-year-old was shot dead by a neighbourhood watch volunteer who has since been acquitted. Dotun Adebabyo spoke to Sybrina Fulton, Trayvon's mother.