His wife , artist Xu Na , is sentenced to 3 years in prison for possessing Falun Gong literature .
2008 -- On 6 February , popular folk musician Yu Zhou is tortured to death 11 days after being taken into custody in Beijing .
Yu Zhou 's wife , artist Xu Na , is sentenced to 3 years in prison for possessing Falun Gong literature .
2008 -- On 6 February , popular folk musician Yu Zhou is tortured to death 11 days after being taken into custody in Beijing .