In the office not far away, the guard was chatting with the nurse, and only then did he realize something was wrong. In a panic, he quickly rushed to the patient’s room. The emergency doctor worked on Lucien for a while, then shook his head and said: “The patient suffered from acute heart failure suddenly. The resuscitation was ineffective, and he has passed away." The guard checked Lucien's breath, his face grim as he called Captain Ward to report the situation. Ward arrived and checked the scene. He immediately ordered the surveillance video to be reviewed, but it turned out that Lucien’s room video had malfunctioned. Although the situation seemed strange, Lucien was dead and there were no clues, so Ward reluctantly agreed to have Lucien’s body temporarily sent to the morgue. After

