Murder of 4-year-old second daughter and sister; sister had headache a few days before death; investigation related to chemical substances. Suspect Kenichi Hosoya (43), a company executive in Taito Ward, Tokyo, and his wife Shiho Hosoya had married Kenichi's older sister six years ago in 2018.
He was re-arrested for killing Minako Hosoya by ingesting the harmful chemical ``ethylene glycol,'' and was sent to the public prosecutor's office on the morning of the 8th.