Billy Bob Thornton's daughter found guilty in tot's death

(CBS/AP) ORLANDO, Fla. - Amanda Brumfield, the estranged daughter of actor Billy Bob Thornton, has been found guilty in Florida of aggravated manslaughter in the death of her best friend's daughter.

The Orange County State Attorney's Office says the verdict against the 32-year-old was returned Friday. She had faced murder charges in the 2008 death of 1-year-old Olivia Madison Garcia.

After a week-long trial, Brumfield was convicted of manslaughter, but found not guilty on first-degree murder and aggravated child abuse charges. She is expected to face sentencing in July.

Brumfield claimed the girl hit her head and aggravated an old injury after falling while trying to climb out of a playpen. Prosecutors said it was "impossible" that a fall from that height would cause a three-and-a-half inch fracture on the girl's skull.

Brumfield is the oldest of five children of the 55-year-old actor, who has been married five times. Her mother is Melissa Lee Gatlin, who was married to Thornton from 1978 to 1980.

The trial took place in the same courthouse where Casey Anthony is on trial for the death of her 2-year-old daughter, Caylee.