With no other option, Gu Fan and the others decided to contact the police. After receiving the emergency call, the police arrived quickly. They found the descriptions provided by Gu Fan and the others to be suspicious, so they immediately contacted the hotel to review the surveillance footage.
According to Jie's recollection, he estimated that Sun Yi had left around 5:30 in the morning. But he was too tired, so he didn't pay much attention at the time.
Basing on Jie's clue, the surveillance video of the corridor on Sun Yi's floor was pulled up. As the camera was relatively far from Sun Yi's room, they could only see a figure leaving the room. Judging by the attire, height, and silhouette, it was likely Sun Yi.
Sun Yi seemed to be heading towards the elevator, the surveillance video only showed his back getting farther and farther away, until he almost reaches the corner.
