A judge has upheld the firing of an Edgewood-Colesburg school teacher who was involved in a party that resulted in the death of four students. The judge ruled the school board’s actions did not violate the rights of Carroll Walthart. Walthart was fired last fall, about six weeks after an alcohol-related car crash that killed four students who’d been at a party on her farm. The school board said Walthart acted unprofessionally when she allowed the students to use her property for the party in which they drank alcohol. Walthart, an 18-year veteran teacher, had claimed the board violated her right to due process.