The man arrested last month by Newtown Police for the death of a dog has pleaded not guilty to a felony charge of animal cruelty.  David Czerniawski allegedly brought a male chihuahua to Berkshire Veterinary Hospital in Sandy Hook, where a veterinarian determined the dog was dead due to blunt force trauma.  According to police, the dog died at an apartment on Farrell Court.  The 71-year-old Florida man was released on bond for a court appearance on the 31st.