Third person charged in murder of Humble mom who was brutally stabbed in her own home

HOUSTON

Mary Ann Murphy, 48, was found dead in her Humble home back in July. Her own 16-year-old daughter and a second person, Zein Ahmed, were already charged in Murphy's murder. Now, Ahmed's girlfriend, 20-year-old Rebecca Keller, has also been charged.

Keller told investigators Murphy's daughter asked her to help kill her mother.

Keller is also charged with sexual assault for having a relationship with the daughter.

She is in Harris County Jail on bonds totaling $80,000.

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