The author you mentioned is Li Yang. We know each other, and our parents know each other as well. He published his piece before I did. Since the person involved was his classmate, he was able to provide more first-hand details, such as the part about riding a bicycle to see that boy.

When we had safety education at school, the teachers would still use examples from twenty years ago—like someone getting hit by a car. This is how it was in the plant: once something happened, people would keep talking about it for twenty years.