RIVER FALLS, Wis. (MCT) — The three girls found dead in their River Falls home this week had their throats slashed, according to a criminal complaint Thursday charging their father, Aaron Schaffhausen, with first-degree intentional homicide.

Each of the girls was found lying in a bed with what appeared to be dried blood on their faces, the complaint said. Each had a blanket covering them up to their necks. According to preliminary autopsy results, the two older girls, Amara, 11, and Sophie, 8, died from having their throats slashed. The youngest, Cecilia, 5, had her throat slashed and was strangled.