Officers described him as talking incoherently and alleged that he pointed the knives toward them when asked about his family. Police noted the parents were not located in the basement, correcting earlier information released during the investigation. Prosecutors said investigators believe Fred and Judith Castiglia were killed on Friday, with Deborah Castiglia killed Saturday when she came to the home. All three victims died from stab wounds, and the Bucks County Coroner’s Office ruled each death a homicide. Deborah Castiglia worked in the Centennial School District for more than two decades.