A Newtown man who allegedly assaulted his parents has pleaded not guilty to a number of crimes and is due in court today.  The victims told police that their son, 24-year old James MacDonald, flew into a rage for some unknown reason and began to damage the house, including lighting a pillow case on fire.  He also allegedly pointed an air rifle at the victim and pulled the trigger, but it failed to fire.  He then allegedly struck the victim in the head with the rifle.  Both victims were treated on scene.  A judge ordered referral to MCCA, the addiction treatment center.  Newtown Police found MacDonald crouching near a fence in the rear yard on August 10th.