A second Warren County Jail inmate has died behind bars this year, the 51-year-old woman found dead in her cell Friday.The woman, Sandra Lynn Akers, was pronounced dead at River Park Hospital late Friday night after attempts to administer CPR failed to resuscitate her once she was found unresponsive. Her body has been sent for autopsy, but it is believe she died from natural causes.According to Sheriff Jackie Matheny, Akers was taken into custody the morning of her death on drug charges. “At about 10 that night she was seen sitting up and drinking some water,” Matheny said.