In "Killing the Dream: James Earl Ray and the Assassination of Martin Luther King, JR.", by Gerald Posner (Harvest/Harcourt Brace, $15), the writer who attacked Kennedy conspiracy theories in "Case Closed" takes on Ray's claim of innocence in the 1968 murder of King.

Based on that paragraph can we conclude that this sentence is true?
The book needs more pictures.
It's impossible to say