I'm from Liangshan County next door. I didn't exist then. I listened to my elders. 1989, from several counties around Yuncheng, there were police in public toilets, railway stations and places with large population movements during the day and night. Go up and check if you meet someone suspicious, but you can't catch this person. I dare not go to the public toilet. Students' dormitories have their own urinals, and teachers bring collective bathtubs. Anyway, everyone was scared to death at that time because the modus operandi was too cruel. Why didn't you know about such a big case? There are two reasons. First, the crime occurred at the county level. To put it bluntly, the ability to solve crimes in rural areas was limited at that time. The other is that they are afraid of causing more panic, you know.