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Scripps Ranch teen sentenced to 16 years-to-life for murdering mother

(SAN DIEGO) 16 year-old Heather D’Aoust has been sentenced to 16 years-to-life in state prison for the May 2008 murder of her adoptive mother, Rebecca D’Aoust.

Heather D’Aoust, who has a history of mental illness, was 14-years-old when she attacked her adoptive mother in the head with a claw hammer in the kitchen of their Scripps Ranch home on the morning of May 25, 2008. She then attacked her adoptive father, Jim D’Aoust, when he came to his wife’s aid.

The defendant told a San Diego County Probation Officer that she had planned to kill the whole family that morning, including her adoptive parents, her sister and the sister’s boyfriend.

D’Aoust pleaded guilty in December 2009 to second degree murder and assault with a deadly weapon.

“This was a tragic case for everyone involved,” said San Diego District Attorney Bonnie M. Dumanis. “Hopefully, Heather will get the mental health treatment she needs while serving her sentence.”

The defendant will be eligible for her first parole hearing after serving 16 years.