Carri Williams and her husband Larry Williams were accused in 2011 of causing their Ethiopian teenage daughter’s death.
Carri Williams has maintained her innocence throughout the trial, but was found guilty of homicide by abuse on Monday, a representative of the Skagit County Prosecutor's Office said.
Larry Williams was convicted of manslaughter, a lesser charge than his wife’s. The jury could not come to an agreement that he had committed homicide by abuse and the judge declared a mistrial, according to NBC affiliate KOMO.
“There was no theory and insufficient evidence of manslaughter in the first degree," Larry Williams’ lawyer, Rachel Forde told KOMO.
Reuters reported that the couple’s daughter, Hana, died of hypothermia in the family’s backyard. The young girl was adopted in 2008 and investigators told Reuters that the young girl's parents beat her, starved her and forced her to use an outhouse.
Both parents were also found guilty of assault of a child linked to the abuse of their 10-year-old son, also adopted from Ethiopia. According to Reuters, the family practiced disciplinary methods from the book “How to Train a Child.”