Daughter charged in senior living stabbing death

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Athina Sumi Rivera, 43, is suspected of murder.
Athina Sumi Rivera, 43, is suspected of murder.

Police have charged Margaret Machiko Yamaguchi's daughter, following her stabbing death Monday at a California senior living community. 

Officers found the 61-year-old resident lying on the floor of her room suffering from numerous stab wounds, according to local reports. Yamaguchi was pronounced dead at the scene, according to a police report.

Athina Sumi Rivera, 43, has been charged with murder. Rivera had reportedly stayed with her mother the previous night. She remains in custody on more than $1 million bond.

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