SACRAMENTO -- A Sacramento woman has been sentenced to 15 years in prison for a drunken driving crash that injured one boy and killed his younger brother as they were walking to school in Citrus Heights.

Tresa Bales-Sterba, 52, tried to apologize to the mother in court Monday by saying, "I am so deeply sorry for what has happened."

Bales-Sterba pleaded no contest to DUI and driving with a suspended license in the October 5, 2012 morning accident on Greenback Lane near Mariposa in Citrus Heights.

Her car ran a red light, striking two brothers, 6 and 8, who were walking to school with their mother. The 8-year-old survived his injuries but his younger brother later died.

Bales-Sterba said in court today: "I am not a bad person. I made a horrible choice."

But the mother of the boys, Maria Rocha, said outside court she didn't think justice was served because her son cannot be returned.