evidence: GBI: Glennville man was killed as result of mistaken identity TATTNALL COUNTY, Ga. (WTOC) - A Georgia Bureau of Investigation agent testified in court that a Glennville man was killed as a result of mistaken identity. [...] Defendants Christopher Sumlin, Aerial Murphy and Keisha Jones sat in court as an agent for the GBI described the murder of 88 year old Bobby Kicklighter.