Zheng Yongshan KYODO PHOTO

"I stabbed sand dolls, not humans," Zheng Yongshan, a Chinese national, told the court. "They did not bleed nor scream."

Defense attorneys said Zheng cannot be held criminally responsible as she was mentally incompetent at the time of the kindergartners' deaths. They said she has repeatedly seen a doctor in connection with schizophrenia.

Prosecutors argued that she was capable of taking responsibility as her motive and the process of her action were clear.

The Japan Times Weekly: Feb. 10, 2007
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