His son is believed to be killed after beaten up in 2001. The local police refused to make it as a murder case, but prepared faked evidence to conclude it as a suicide. The parents tried to find justice, but they were both sent to labor camp (LaoJiao) in 2006. The father comes to Beiing again, with the head of his son, talked the case to Boxun reporter.

Full report in Chinese with video:

http://www.boxun.com/news/gb/china/2011/04/201104031325.shtml