By Jeff Labrecque
June 02, 2011 at 04:03 PM EDT

Amanda Brumfield, the 32-year-old daughter of Billy Bob Thornton, was found guilty of aggravated manslaughter in the death of her best friend’s 1-year-old child, according to the Orlando Sentinel. Olivia Madison Garcia died in Oct. 2008 from a skull fracture that Brumfield claimed was a result of an accidental fall from a playpen. In a trial that lasted less than a week, the prosecution convinced a jury that the child’s skull injury was not compatible with Brumfield’s explanation, though the accused was found not guilty of first-degree murder and aggravated child-abuse. She will be sentenced for manslaughter in July.