Assassination of Martin Luther King Jr. disagrees with William F. Pepper's claims that the government killed King. He is supported by author Gerald Posner. Posner wrote "Killing the Dream: James Earl Ray and the Assassination of Martin Luther King, Jr." (1998), concluding that Ray killed King, acting alone, likely for the hope of collecting a racist bounty for the murder. On the other hand, conspiracy theorists bristled at "Killing the Dream", criticizing Posner for in part basing it on "a psychological evaluation of James Earl Ray, which he [Posner] is not qualified to give, and he dismisses evidence of conspiracy in King's murder as cynical attempts
Martin Luther King III 2006 sale of some of Martin Luther King Jr.'s documents. In response, Dexter King accused his siblings of continuously using their parents' legacy for their own benefit and "to further their own personal and religious agendas." Although critics said the lawsuit was at odds with their father's message and legacy, King III maintained it was in keeping with his history of negotiation and nonviolent direct action, claiming, "My father also used the court system." Dexter filed a similar countersuit against Martin and Bernice on August 18, 2008, claiming they breached their duties to the King Center and their father's estate,