With Sunday having marked seven years since a woman and her daughter were killed by the driver of a runaway car in Tokyo's bustling Ikebukuro district, the officer who lead the police investigation at the time is urging people to remember the lessons learned from the incident.'We should not let this accident fade away,' said Akira Takahashi, 58, now head of the Traffic Investigation Division at Tokyo Metropolitan Police Department.Shortly after noon on April 19, 2019, Takahashi rushed to Ikebukuro from the MPD's headquarters after receiving a report that a car had hit multiple people. He described the scene as gruesome and unlike anything he had experienced before, with a garbage truck on its side and a bicycle split in half. The driver of the car was an 87-year-old man.