By Matt Dinger Staff Writer mdinger@oklahoman.comFive years ago, the dismembered body of missing 19-year-old Carina Saunders was found inside a duffel bag discarded behind a Bethany grocery store. The gruesome killing has never been solved. On Wednesday, the Oklahoma State Bureau of Investigation announced a reward of up to $10,000 for a purported video of the killing and the device on which the video is stored. “The OSBI has a strong belief that there is in existence a video of the murder.Read more on NewsOK.com