The next morning, the captain tells the other girls that Gao Ling is going to work. He tells them that since she's been working, she needs to send some money back to her family. But she fights back, saying that they're sucking her dry, and that she wants to stop the relationship with them. The captain doesn't know who this person is, but he does know that she has a bad temper. She runs away from the room, and the captain runs off to find the autopsy report. He asks the captain to send the report to him instead of sitting in the on duty room. He wakes up and finds that half the people in the room are frightened. The cause of death, he tells the captain, wasn't a skull fracture, but rather a collision wound. He also says that the murderer didn't strike her after her fall to the ground, but only the beginning of the cause. The primary cause of suffocation, he says, was the presence of rose teeth. Rose teeth can't be used as a sole cause of asphyxiation, he explains, because they don't bite down into the root of a person's tongue. He says that when the murderer strangles gao Ling, her tongue is pushed forward, and her mouth is forced shut. This pushed her tongue even further. The Captain says that he'll go to the police station and get a copy of the report for the captain. He's about to start drinking tea when the captain asks him if he'd like to have some tea. He refuses.