Yang ZhiyaReal name apparently "Wang Ganggang", aliases include Yang Zhiya, Yang Liu, and Yang Xinhai. Convicted rapist and robber, for which he spent time in a labor camp. Yang would enter houses and kill all the the occupants. Operated in Henan, Anhui, Shandong, Hebei provinces, travelling by bicycle between towns. Known to have killed two in Shijiazhuang. Sometimes commited necrophilia on his victims.
Very little information is available on this case, as the Ministry of Public Security has ordered a gag.