Yasuko Uechi

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Name: Yasuko Uechi.
Died: December 18, 2015.
Age at death: 82.
Cause of death: Murder.
Location: Kihocho, Japan.
Disability: Unspecified physical disability.

Details:
For some time, Yasuko had been asking her son to buy her a powered wheelchair; eventually she bought one for herself. Yasuko’s son, angry she had bought a wheelchair he said he couldn’t afford, suffocated her to death.

Perpetrator: Norio Uechi; arrested for murder.

Source: Mie cops: Man killed disabled mother over wheelchair purchase
Man kills his mother because she bought a wheelchair without his permission