This case is very serious. Chen, deputy director of Dongyang Public Security Bureau, led an investigation. At 8: 30 pm on August 13, the police cut the concrete pier in the basement of a building in Dongyang City and found the deceased hiding in two suitcases. It was confirmed that the deceased was Ms. Lu's mother and aunt.

That night, the police locked the murder suspect Zhang Haijun, 27 years old, from Wuguantang Village, Hengdian Town, Dongyang City.

A hunting team of 10 people was quickly established and tracked all the way to Laiwu, Shandong Province in August 14. On August 16, with the assistance of local public security organs, a "reward notice" was posted on the street.