The action involving Esteban Nuñez, who had pleaded guilty to participating in the killing of a college student, comes amid a flurry of final-day pardons and appointments by Schwarzenegger.On his final night in office, Gov. Arnold Schwarzenegger reduced the prison sentence of the son of former Assembly Speaker Fabian Nuñez, Esteban Nuñez, who had pleaded guilty to participating in the killing of a college student.