Han dog på lördagsmorgonen av en hjärtattack, på ett tåg.
Frågan är vems som ska ta över efter honom och det kan bli hans son.
Dead: Kim Jong Il (left) died on Saturday and will now be replaced by his third son Kim Jong Un (right)
"A nation in tears: North Koreans mourn the death of Kim Jong Il... as West fears show of strength from nuclear state's new leader
- Kim Jong Il died on a train on Saturday morning from a heart attack
- Came into power in 1994, succeeding his father, Kim Il Sung
- Third son, Kim Jong Un, unveiled as successor in September 2010
- His uncle Jang Song Thaek expected to rule behind the scenes as he trains on the job
- South Korean and Japanese militaries on 'high alert'
- North Korea today test-fires short-range missile on eastern coast
- Fears of behind-the-scenes power struggle which could destabilise region
- Funeral planned for December 28 in capital of Pyongyang "
Kanske får vi se ett öppnare Nord Korea framöver.
För folkets skull hoppas jag det.
Ha det så gott.