A 10-year-old girl who was found dead at her home in Chiba Prefecture last month had been deprived of sleep by her father in addition to being underfed and confined at home by her parents, investigative sources said.
Mia Kurihara's mother, Nagisa, 31, has told investigators there were times Mia's father, Yuichiro, 41, woke the girl up to make her stand and that he prevented her from sleeping from around Jan. 22, two days before she was found dead with bruising to her body in the bathroom of their home in Noda, Chiba Prefecture, the sources said.
The father was arrested on Jan. 25 for allegedly assaulting Mia the previous day, including dousing her with cold water from a shower. Mia's mother was arrested Monday for her alleged failure in stopping the assault.