The mother of Nobuyuki Satō, then 73 years old, consulted the Kashiwazaki public health center in January 1996, because her son had been acting strangely and was violent to her. She called again on January 12, 2000, and again on January 19, requesting a visit to her home. Officials finally visited the home on Friday, January 28, 2000. Subsequently, Satō caused a disturbance that resulted in police being called to the scene. On this occasion, Sano, by then 19 years old, approached the officers and identified herself. She reportedly said: