Funeral services for Robert “Bob” Riggen, age 67 of Knoxville will be held Wednesday, October 11th at 10:3am at Bybee & Davis Funeral Home. Burial will follow in Graceland Cemetery. The family will receive friends from 6:00-8:00pm Tuesday at the funeral home. Memorials may be made to the family to be designated at a later date. Online condolences may be left at bertrandfuneralhomes.com.