[citation needed] Official North Korean biographies state that he and his older brother Kim Jong Il got along very well and played together.
North Korean sources claim that in the summer of 1946 or 1948, he accidentally drowned while playing with his brother in a pond in Pyongyang.
[2] However, Russian sources indicate that he fell in a well in Vyatskoye and drowned, prior to the family moving back to Korea.
[3] Two North Korean defectors have alleged that the young Kim Jong Il was responsible.
[5] A year after his death, in 1949, his mother Kim Jong Suk died while giving birth to a stillborn girl.