was found guilty on one count of paying a bribe to an agent of an Indian tribal government. Sentencing is scheduled for Sept. 9. The indictment:Mashpee Wampanoag Tribal Council chairman indicted …was found guilty on one count of paying a bribe to an agent of an Indian tribal government. Sentencing is scheduled for Sept. 9. The indictment:Mashpee Wampanoag Tribal Council chairman indicted …