On November 29, 1995, Yang Changlin, who lived in Dongfeng Street, Shengfang Town, Bazhou City, and his two sons, Yang Shan and Yang Xuesong, were killed, and Yang's wife, Zhang Jinping, was injured. Pen, fun, pavilion www. biquge。 The Bazhou City Public Security Bureau found two threatening letters at the scene, a pickaxe and a kitchen knife stained with blood, a nylon rope used to bind the corpse, and a palm print. Yang's wolfdog died.

The threatening letter shows that the wolf dog of the Yang family "offended" the killer, and the killer asked the Yang family to kill the wolf dog themselves, otherwise they would kill everyone in the Yang family. A bone at the scene was tied with a black thread in a plastic bag containing white powder, which was made of ***, or was intended to poison dogs. But the police investigated, and the wolf dog eventually died from the blow of the pickaxe.

After the technical appraisal of the police, the palm prints found at the scene were mutilated and did not meet the conditions for identification. No handprints were found on the wooden handle of the pickaxe. Due to the repeated renovation and relocation of the technical room, and the fact that the internal staff at that time has now died, key physical evidence such as kitchen knives, pickaxes, and threatening letters have now been lost. Since only copies of the threatening letter remained, it was not possible to conduct a technical appraisal through technical means. Due to the loss of a large amount of physical evidence, the case of Yang Changlin's family's three deaths and one injury has not been solved for more than five years.

In 2000, Liu Decheng's family of three on Shengtang Road in Shengfang Town was tragically wiped out. The Bazhou police successfully "cracked" the case this time, and arrested Yuan Weidong, Tang Fengwu, Chen Ruiwu, Shang Zhihong, Yang Hongyi and others in 2001. After a series of interrogations, Yuan Weidong and Tang Fengwu became suspects in the murder case of Yang Changlin's family, and Yuan Weidong, Chen Ruiwu, Shang Zhihong, and Yang Hongyi became suspects in the murder case of Liu Decheng's family. The murder case of Yang Changlin's family was announced to be solved.

On November 12, 2009, the Hebei Provincial High Court pronounced a verdict that the facts of the murder of Liu Decheng's family by Yuan Weidong, Chen Ruiwu, Shang Zhihong, and Yang Hongyi were unclear and the evidence was insufficient. Chen Ruiwu, Shang Zhihong, and Yang Hongyi were acquitted and released in 2011. (This newspaper has reported)