For instance, if murder for hire was already an option, why bother having someone with Jiang Shu's face appear near and inside the manor's surveillance? Just to add physical evidence on top of having a witness?
That seems a bit foolish.
If Jiang Shu could provide an alibi for that time, proving that it wasn't him in the surveillance footage, wouldn't that directly clear him of suspicion?
Although Jiang Shu's arrival here did not conform to common sense, she could make his presence in the laboratory seem logical—simply state she brought him in, at most violating the lab's regulations.
Liu Tingruo was not foolish, but her way of thinking was not adept at handling these matters, so she inevitably got stuck when contemplating this point.
She knew Tang must have had a deeper intention, but she couldn't think of it at the moment.
