Joined by relatives of Robert F. Kennedy, the Rev. Martin Luther King Jr. and Malcolm X, a group of more than 60 authors and investigators have called for a new congressional investigation into the assassinations of the three men and President John F. Kennedy, saying that the four slayings were not resolved. In a public statement, they demanded a public tribunal modeled on South Africa's "Truth and Reconciliation" process to persuade either Congress or the Justice Department to revisit all four assassinations. Robert F. Kennedy Jr. and former Maryland lieutenant governor Kathleen Kennedy Townsend (D), two of Robert Kennedy's children, signed the statement, as did Isaac N. Farris, a nephew of King and former president of the Southern Christian Leadership Conference, and the Rev. James M. Lawson Jr., a Memphis pastor and mentor to King. The statement was written in part by Adam Walinsky, a former top aide to Robert Kennedy, with input from other assassination scholars. He cited the "wreckage" from the slayings as the reasons to revisit them. "What a profound effect these assassinations had on this country," Walinsky said. "These people, and the forces who were responsible for these murders, are still among us. The institutions are still there. And they're still doing all the same things. So that's the problem." A news release and the full statement with a list of signers is here.