Washington (AFP) – A grand jury in Mississippi declined to indict a white woman whose accusation that Black teenager Emmett Till propositioned her in 1955 led to his abduction and murder, which helped sparked the civil rights movement, a prosecutor said Tuesday. The grand jury decided after seven hours of deliberation that there was insufficient evidence to indict Carolyn Bryant Donham, who was 21 at the time of Till’s killing, of complicity in his kidnap and murder, Dewayne Richardson, the prosecutor for Leflore County, said in a statement. The decision came a month after an unserved arrest w…