The Indiana Supreme Court has thrown out the murder convictions of a former state trooper in the deaths of his wife and two children and ordered a new trial.

David Camm has twice been convicted for the killings, but the court in a 4-1 ruling released Friday said the judge in the retrial improperly allowed prosecutors to raise the prospect that he had molested his daughter despite not presenting evidence he had done so.

Camm's wife, Kimberly, and their children, 7-year-old Bradley and 5-year-old Jill, were killed in 2000 at their home in the southern Indiana town of Georgetown.

His first conviction was overturned by the state appeals court in 2004. Camm was convicted again in 2006 and sentenced to life in prison without parole.

Another man was also convicted in 2006 in the killings.