Covina woman fatally stabbed; daughter arrested - Los Angeles Times
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Covina woman fatally stabbed; daughter arrested

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A woman allegedly stabbed her 61-year-old mother to death early Monday in a Covina assisted living facility, police said.

Covina police received a call about an unresponsive woman in the 800 block of West San Bernardino Road around 5 a.m., said Sgt. Gregg Peterson of the Covina Police Department.

Police found Margarent Machiko Yamaguchi lying on the floor; she had been stabbed several times, Peterson said. She was pronounced dead at the scene.

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Police arrested Yamaguchi’s daughter, Athina Sumi Rivera, on suspicion of murder. Rivera had been spending the night in her mother’s room, Peterson said.

Rivera is being held in lieu of $1,015,724 bail. She is scheduled to be arraigned Wednesday, Peterson said.

Twitter: @byjsong

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