SourceKim Jong-nam (R), the son of North Korean leader Kim Jong-il, sits beside his father in this file photo thought to be taken around 1981. A man believed to be Kim Jong-nam was detained at Tokyo’s Narita airport this week after trying to enter Japan illegally. At rear is is Sung Hae-rang (L), the sister of Kim Jong-nam’s mother, and her two children, neither of whom are named. REUTERS / JoongAng Ilbo Handout
