He is the Chief of Twin Hills Fire Department and the Twin Hills Principal and Friday morning he saw his school burn.  Heavy smoke could be seen pouring out of the main building of Twin Hills School in Okmulgee County.  The fire reported early this morning heavily damaged that building said to be about 100 years old.  Twin Hills is a dependent district and serves students kindergarten through 8th grade.  Officials say the school was empty because students are not in class today.  Firefighters from Beggs, Okmulgee and Twin Hills responded to the fire.  Initial reports from the scene suggest the building is a total loss.  The cause of the blaze has not been determined but officials say it appears to have started in the principal's office.