Is Zhang Hao the murderer?

Zhang Hao, a 37-year-old motorcycle salesman, was divorced just like Zhang Yuqing. Zhang Hao likes Zhang Yuqing, so she often goes to the cake shop where she works in Zhang Yuqing to talk more and enhance her feelings. In the eighth episode, the human body tissue left in the newspaper was found in the library. Feng Yulin finally said that Song Rui killed the man. Feng Yulin was exposed to using Zhang Yuqing's account to collect money. Song Rui said that if he didn't want to be known, he would put an end to future trouble. Feng Yulin picked up an axe and cut off Xu Wanxia's head. In order not to let Zhang Yuqing know of his existence, Feng Yulin sneaked into Zhang Yuqing's mother's house at night and killed them. Song Rui likes Feng Yulin and thinks she can resist all crimes. Song Rui doesn't understand that she, like Zhang Yuqing, is just a tool of Feng Yulin.