ORLANDO, Fla. — The estranged daughter of actor Billy Bob Thornton has been found guilty in Florida of aggravated manslaughter of a child.

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

She was found not guilty on first-degree murder and aggravated child abuse charges.

Brumfield claimed the girl hit her head 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.

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