A Mississippi district attorney and the widow of Medgar Evers struggle to finally bring a white supremacist to justice for the 1963 murder of the civil rights leader.A Mississippi district attorney and the widow of Medgar Evers struggle to finally bring a white supremacist to justice for the 1963 murder of the civil rights leader.A Mississippi district attorney and the widow of Medgar Evers struggle to finally bring a white supremacist to justice for the 1963 murder of the civil rights leader.