"There is no blood under the desk," pointed out Liu Yu Zeng as he came to stand beside Chen Zi Han and me. I followed his gaze and saw that he was right. There was no blood under the desk and only a minimal amount on the chair itself.
"Secondary location," said Liu Wei as he adjusted his glasses. I nodded in agreement. "Not to mention the door was locked, which means that the person responsible knew the code?" By the time I had finished the sentence, the statement that I was sure about transformed into a question.
If the dead man had opened the door and let the Ripper in, then that meant that there should be a lot more blood than there currently was and he wasn't threatened by the individual either. But how can he look so relaxed as if he was sleeping?