A officials in southern Indiana say a wood stove suspected of causing a mobile home fire that killed two children and three adults was the home’s sole source of heat.  The Crawford County Sheriff says the fire broke out this morning in the Indiana town of Sulphur, about 30 miles west of Louisville, KY.  The homeowner’s father tried to rescue his son and the others but was driven back by intense flames.  Another relative said the mobile home had a furnace that wasn’t being used, in an effort to cut heating costs.