@Plykiya tbh i'm not sure what's up with her pants in the cover image, but I agree with @VooXoo in saying that it's likely just a fanservice thing. There was nothing sexual involved in her murder, if that's what you're worried about. That I'm sure of. That would make Wu Ming a very different kind of character ?
You recognize miles aways the difference between a manga and a manhua and why chinese manhua are always a pile of crap since they also have heavy law restrictions. ?
Just so you know, those policemen aren't doing their job properly. By watching the stab wound carefully, a competent doctor can usually deduce due to the entrance angle, that the wound was self inflicted.
@isekaijin while that may be true and I am certainly no CSI expert, I believe that kind of analysis is usually done in an autopsy. like, if emergency medical services are called for a surviving stab wound victim, they'd likely be less focused on examining the wound and more focused on quickly treating it instead. again, I am not an expert, but this is just how I figured it happened.