OTSU, Shiga Pref. (Kyodo) The woman accused of killing two children from her daughter's kindergarten in Nagahama, Shiga Prefecture, has told police she felt she "did not fit in" in Japan, police sources said Wednesday.
Otsu prosecutors plan to conduct a psychiatric test on Zheng Yongshan, 34, after learning she had been emotionally unstable and violent at home, the sources said.
Zheng was arrested in the fatal stabbing of the 5-year-old boy and girl on Friday.
An acquaintance said the Chinese woman apparently had no major trouble with communicating in Japanese but sometimes appeared to have difficulty in conveying delicate nuances.
Her in-laws have said she may have felt out of place and under a lot of stress, according to the acquaintance.
Zheng, from the northeastern Chinese province of Heilongjiang, met her 47-year-old Japanese husband via a matching-making agency.
She arrived in Japan in August 1999 and married the man, whom she had met in China, the following July. She is known in the community by her Japanese name Mie Taniguchi.
The couple lived in the town of Kinomoto, where the man's parents lived, before moving to their current home in Nagahama about two years ago.