(Agence France-Presse) North Korea’s late leader lost his temper because of sloppy work on a crucial power station before he suffered a fatal heart attack a year ago, a South Korean newspaper said on December 25.

North Korea said Kim Jong-Il had died aboard a train on December 17 from a heart attack brought on by pressure from work, but the exact cause has been veiled in mystery.

Chosun Ilbo, a conservative national newspaper, said Kim’s indignation might have caused his sudden death.

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