In Japan, rising numbers of parents are harming their children. Why?

When police responding to an emergency call arrived at the Osaka home of Kazuya Ogawa on the evening of August 30, they were confronted with three bodies. Ogawa’s wife was lying on the floor in the bedroom of their two daughters, Risa, aged five, and Juri, three. All had sustained serious stab wounds. The two girls were rushed to hospital but were later pronounced dead. Ogawa’s 40-year-old wife underwent treatment for knife wounds to her abdomen and was reported to be in a stable condition.