By Nuria Martinez-KeelStaff writer nmartinez-keel@oklahoman.comA volunteer wrestling coach has been charged with six counts of rape from a reported sexual relationship with a 15-year-old girl, authorities said Tuesday. Joseph Dion Martinez, 27, was charged Friday in Oklahoma County with an additional four counts of forcible oral sodomy and one count of manufacturing child pornography. Edmond police arrested Martinez on Feb.Read more on NewsOK.com