Chinese billionaire businessman, Liu Han, has been executed after being found guilty of murder and running a mafia-style criminal gang. Liu was the chairman of the Hanlong Group - the biggest private company in Sichuan Province. But he was also involved in murder, selling weapons and gambling and was executed along with his younger brother and three other associates. Liu is said to have had links to Chinas former security chief, Zou Yongkang, who is under investigation for corruption
