Sikivu Hutchinson: When a little white girl goes missing, online news, supermarket tabloids and cable network stations bombard us with up-to-the-minute dispatches on the crime, the victim, her shattered family and anguished community. When a little black girl is murdered in cold blood by a big city police department it is up to the community and those who care about social justice to ensure that the case doesn’t fade into the national obscurity that is usually reserved for the lives of people of color.