Calls for Lee Wan - sung to resign began after South Korean tycoon ng dong - sung was found hanging from a tree in 2008 . Sung , who was under investigation for fraud and bribery , left a note listing names and amounts of cash owed to top executives .
Calls for Lee Wan-koo to resign began after South Korean tycoon Sung Woan-jong was found hanging from a tree in Seoul . Sung , who was under investigation for fraud and bribery , left a note listing names and amounts of cash given to top officials .