Takashi Ono, stepfather of 43-year-old Kazuya, a long time resident of the Tsukui Yamayuri-en facility who survived multiple stabbing wounds in the attack at a facility for disabled people in July 2016, hold a smartphone displaying a photo of their son Kazuya with Takashi's wife Chikiko, taken after recovering his critical condition, during an interview with Reuters at their home in Zama, Kanagawa prefecture, Japan September 7, 2016. Picture taken September 7, 2016. REUTERS/Issei Kato

Staff members aid to move people with disabilities at Murasaki-Aiikuen, institute for children and adults with profound mental and motor disabilities, at National Rehabilitation Center for Children with Disabilities in Tokyo, Japan September 13, 2016. Picture taken September 13, 2016. REUTERS/Issei Kato

A staff members (R) chats with people with disabilities at Murasaki-Aiikuen, institute for children and adults with profound mental and motor disabilities, at National Rehabilitation Center for Children with Disabilities in Tokyo, Japan September 13, 2016. Picture taken September 13, 2016. REUTERS/Issei Kato

Takashi Ono (L) and his wife Chikiko, parents of 43-year-old Kazuya, a long time resident of the Tsukui Yamayuri-en facility who survived multiple stabbing wounds in the attack at a facility for disabled people in July 2016, hold a photo of Kazuya and Chikiko as they pose for a photograph during an interview with Reuters at their home in Zama, Kanagawa prefecture, Japan September 7, 2016. Picture taken September 7, 2016. REUTERS/Issei Kato

Takashi Ono (L) and his wife Chikiko, parents of 43-year-old Kazuya, a long time resident of the Tsukui Yamayuri-en facility who survived multiple stabbing wounds in the attack at a facility for disabled people in July 2016, speak during an interview with Reuters at their home in Zama, Kanagawa prefecture, Japan September 7, 2016. Picture taken September 7, 2016. REUTERS/Issei Kato

Takashi Ono (L), flanked by his wife Chikiko, parents of 43-year-old Kazuya, a long time resident of the Tsukui Yamayuri-en facility who survived multiple stabbing wounds in the attack at a facility for disabled people in July 2016, hold a smartphone displaying photo of their son Kazuya taken after recovering his critical condition during an interview with Reuters at their home in Zama, Kanagawa prefecture, Japan September 7, 2016. Picture taken September 7, 2016. REUTERS/Issei Kato

Takashi Ono, stepfather of 43-year-old Kazuya, a long time resident of the Tsukui Yamayuri-en facility who survived multiple stabbing wounds in the attack at a facility for disabled people in July 2016, points at photos of their son Kazuya and Takashi's wife Chikiko, during an interview with Reuters at their home in Zama, Kanagawa prefecture, Japan September 7, 2016. Picture taken September 7, 2016. REUTERS/Issei Kato

Tourists stand at a promenade across the water from the Marina Bay Sands integrated resort in Singapore June 22, 2010. REUTERS/Vivek Prakash/File Photo