At around 21:00 on March 1, a woman surnamed Zhang in her 40s was going home from work as usual. When she passed the Wugong Mountain area of West Second Ring Road in Yuelu District, an ice-cold dagger was held to her neck. After being robbed, Zhang was dragged into the culvert under the Wugong Mountain overpass where she was almost raped. Fortunately, there were passers-by at that time. The nervous suspect fled when he heard voices. The next day, another similar robbery case occurred in the Wugong Mountain area of West Second Ring Road.