Mother of 4-year-old dies from poisoning: ''I didn't give her medicine'', explains Tokyo Metropolitan Government?. Kenichi Hosoya (43), a company executive in Tokyo's Taito Ward, and his wife Shiho Hosoya.

killed their second daughter, Miki, who was 4 years old, in March last year by making her take drugs such as the antipsychotic drug olanzapine. The cause of Miki's death is believed to be a combination of olanZapine and ethylene glycol, a harmful chemical found in car antifreeze.