Dennis Dechaine has once again filed notice of an appeal of his conviction for the kidnapping, sexual assault and murder of a 12-year-old girl more than three decades ago.
Last month, Superior Court Justice Bruce Mallonee ruled that new DNA evidence did not warrant a new trial for Dechaine.
His attorney, John Nale, said the latest appeal focuses on misconduct on the part of prosecutors.
Dechaine is serving life in prison.