The massacre at the boarding house for disabled people in Japan were arranged by a former employee.
The offender killed 19 people in a nursing home.
Man attacked with knife people with disabilities in the boarding house in the city of Sagamihara West of Tokyo, self-surrendered to the police hours after the incident.
It is noted that the 26-year-old man, according to preliminary information, previously worked in the same boarding house.
The police finds out the motive of the attacker.
