He was 25 when he drove a truck into a lunch-time crowd of pedestrians at Akihabara shopping district, killing three people. He then stabbed passers-by with a dagger, killing four and wounding eight.
Akihabara, Tokyo has transformed over the years. In its present form Akihabara emerged from the ruins of a devastated Tokyo after World War 2 when the entire district was burnt to the ground.