A New Fairfield man was arrested Tuesday on child pornography charges following an investigation into a fatal house fire last April. Police say 66-year-old John Fairchild was charged after investigators found child sex abuse material on a tablet recovered from his home. The investigation began after his wife was found dead in the fire, and investigators now say she died before the fire started. Fairchild was taken into custody and is being held on a $10,000 bond.