Liu Ren, a central figure of a criminal group masterminded by Chinese tycoon Chen Zhi, has been extradited from Cambodia to China. Chinese police recently escorted Liu from Cambodia back to China, the criminal investigation department of the Chinese Ministry of Public Security said in a statement on Wednesday. The statement said Chen – who was extradited to China earlier this year and is accused by both Beijing and Washington of transnational fraud – directed Liu in 2016 to found a group called...