Kentucky's poet laureate Frank X Walker has a new book out. "Turn Me Loose: The Unghosting of Medgar Evers" (University of Georgia Press) is a collection of persona poems about the life and assassination of the civil rights pioneer, who was murdered in Mississippi by Byron de la Beckwith 50 years ago this summer. Evers was the first NAACP field secretary for Mississippi, and he was instrumental in the desegregation campaign at the University of Mississippi and the efforts to bring murdered Chicago teen Emmett Till's killers to justice. WFPL's Erin Keane speaks with Walker about Evers' legacy and writing in the voices of Evers' wife and killer.