MEMPHIS (AP) — Nine newly found film reels may document the jailing and trial of James Earl Ray, the man who pleaded guilty to assassinating civil rights leader Martin Luther King Jr., in Memphis in 1968, an official said.County register Tom Leatherwood said Thursday the reels, discovered last spring in an old credenza being used for storage at the Criminal Justice Center in downtown Memphis, may contain three hours of footage about Ray's incarceration and trial.However, Leatherwood says the reels also could have deteriorated while in storage, The Commercial Appeal reports."We don't really know what's on these tapes," Leatherwood said. "Worst-case scenario, they're blank. They've deteriorated and there's nothing on them."Leatherwood wants to find out what is on the reels.