"You said that trace amounts of sevoflurane were found in Wang Yue's nasal cavity",Furthermore, the amount of sevoflurane used by the perpetrator on the victim may not have been large. The perpetrator only needed the victim to be temporarily unconscious for a few minutes to complete the murder.,Jiang Yùn didn't ask where they were going to eat, after all, these things were always arranged by Gu Yan.。