Since it was early Saturday evening, not many people were taking the train downtown. And unlike his usual habit of reading his textbooks while waiting on the platform, that evening Sean just stood and waited for the train, casually observing other travelers.

He noticed a little girl in a white dress nearby. She was about four years old and was holding a little wild flower. She was happily singing and dancing around a young woman who was talking on the phone. Then Sean saw headlights approaching. It was their train. "The mother should really hold the little girl's hand," thought Sean.

The next few seconds seemed to go by in slow motion. The little girl's flower flew from her hand. She chased after it. She chased it right to the edge of the platform. The train was still traveling quite fast as it pulled into the station. A loud, metallic, screeching sound came from the train. The driver tried desperately to stop the train. To Sean's horror, the little girl fell to the tracks one-and-a-half meters below. The young woman who was with the child screamed. Everyone else on the platform gasped. They could all tell. The train was moving too fast to stop in time.