Here is the same story from the English-language version of Choson Ilbo:
http://english.chosun.com/site/data/html_dir/2010/04/21/2010042100455.html
“Prosecutors said the two admitted to having orders from Kim Yong-chol, the bureau director, to file a report about Hwang Jang-yop’s activities including the location of his home, and to cut off his head. “
Well that certainly sounds....uh....fair.