Have you read this 2012 book?
Kim Jong Nam, the late Kim Jong Il’s eldest son, provides his own frank account of North Korea’s “Dear Leader” in a book that will hit stores Jan. 20, including his reluctance to let any of his sons take power, an editor at publisher Bungei Shunju Co. said.
The book by Yoji Gomi, a senior staff writer for the Tokyo Shimbun daily, is based on his extensive interviews with Kim Jong Nam and email exchanges between them, the editor said Friday.
http://www.japantimes.co.jp/news/2012/01/08/news/kims-eldest-son-dishes-dirt-in-upcoming-book/