Chen Shifeng, a suspect in Jiangge murder case, is on trial. Did Liu Xin appear in court out of conscience?

I have never seen Liu Xin have a conscience since I paid attention to the whole incident. Because of him, the whole case became complicated. What did Liu Xin do this year when Jiang's mother sought justice for her daughter? I didn't do anything, but I should eat and drink. I didn't visit my good friend's mother who died because of her. Instead, I deleted all my contact information. I just want to say, as a person with a conscience, shouldn't I help Jiangge's mother bring the prisoner to justice earlier? In this story, I actually didn't see that Liu Xin had a conscience at all. When the situation team found him, we had a positive chat with Jiang's mother. During the chat, all we saw was lies. He said he didn't lock the door, but the evidence provided by the Japanese police showed that he did lock the child. Besides, he said he didn't know it was Chen Shifeng outside the door, but from all the signs he said, he actually knew who was outside the door. So all this means that Liu Xin is lying. I think in the face of the victim's mother, she should tell the truth. But she didn't. I think her appearance in court this time is more because of the condemnation of netizens. She may think that her appearance in court may bring a chance to her reputation and life. As a selfish person, I think it is absolutely impossible to put myself at a disadvantage. I hope the court can severely punish the murderer and accomplice and let Jiangge rest in peace.