Chen Yunfei, a veteran campaigner from Sichuan province, faces 10 years in prison after travelling to the resting place of Wu Guofeng A Chinese activist has been ordered to stand trial for visiting the grave of a young photographer killed in the 1989 Tiananmen massacre. Chen Yunfei, a veteran campaigner from Sichuan province, was seized by police in March last year after travelling to the resting place of Wu Guofeng.