In 1968, just hours after Martin Luther King Jr. was assassinated, the future Pulitzer Prize–winning author Garry Wills—then a young writer for Esquire—rushed to Memphis, Tennessee, where he watched as King’s body was embalmed at the mortuary; later, Wills traveled twelve hours by bus with mourners to King’s funeral in Atlanta. Nearly fifty years after its publication, Wills’s “Martin Luther King Jr. Is Still on the Case!” remains one of the most revealing and lasting portraits of King and his turbulent era ever written. Writer and director John Ridley—who won an Oscar for his screenplay for 12 Years a Slave—joins host David Brancaccio to discuss why Wills’s wrenching profile of King continues to resonate today, what has changed in America since it was written, and, most important, what still needs to change.