Masano Yao

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Name: Masano Yao.
Died: April 6, 2016.
Age at death: 79.
Cause of death: Murder.
Location: Kato, Hyogo Prefecture, Japan.
Disability: Dementia.

Details:
Ms. Yao was killed by her husband, who strangled her because he was tired of caring for her.

Perpetrator: Yoshiaki Yao (Husband), arrested.

Source:
Hyogo man, 82, arrested, admits strangling dementia-stricken wife