Kim Jong-chul's older half-brother was thought to have fallen out of favour after embarrassing the regime in 2001 with a failed attempt to visit where?
Kim Jong-chul: Kim Jong-chul (born 25 September 1981) is a son of North Korean Kim Jong-il. Kim Jong-nam: Kim Jong-nam (Chosŏn'gŭl: 김정남 ; Hancha: 金正男 , ] or ] ] ; 10 May 1971 – 13 February 2017) was the eldest son of North Korean leader Kim Jong-il.
i don't know