According to a new book, Ghosts Caught on Film 2: Photographs of the Unexplained, researchers have been unable to explain the chilling image captured in Brett Meisner's 1997 photo of Jim Morrison's grave. After extensive analysis of the picture and original negative, photographic experts believe the ghostly image is neither the result of photo manipulation nor a trick of the light. The book concludes the image is 'unexplainable.' More at Sunday Express.