Murderer

Du Jianing reprimanded Cheng Zinuo with deliberate anger, "Cheng Zinuo, my mom is still lying in the ICU. You actually want me, Mr Jinnian, to follow you to transfer the surveillance cameras? I can tell that's not your mom! "

In fact, even if Cheng Zinuo had pulled Du Jinnian along to adjust the surveillance, it would have been of no use because Du Jianing had pushed Ann Huilan down the stairs without any surveillance at all. Therefore, Du Jianing bit the bullet and died because Cheng Zinuo pushed Ann Huilan down the stairs. No one could prove Cheng Zinuo's innocence.

Furthermore, since Ann Huilan was injured and had entered the intensive care unit, Du Jianing couldn't help but feel overjoyed. She wanted Ann Huilan to die in the intensive care unit, so that she would have one less stumbling block to prevent her from being with Du Jinnian. All of Du Family had to be hers, no one had the qualifications to fight with her.