In an unopened park in City B, a female body was found drowned in shallow water. When the police were collecting evidence at the scene, Officer Lin saw a woman standing next to the crime scene. He walked over and scolded her. The woman raised her head and said to him: "This is not a homicide. I committed suicide."
Officer Lin was stunned. What was the whole case about, why was the woman drowned in shallow water, and who was this mysterious woman who suddenly appeared?
Conception: