AUSTIN, Texas — An inmate at the Travis County Correctional Complex has died.

According to the Travis County Sheriff’s Office, at approximately 9 a.m. on Saturday, Aug. 4, Arthur David Westley, 48 was found unresponsive in his cell. Officers and medical staff immediately initiated CPR. Austin-Travis County EMS responded, but resuscitation efforts were unsuccessful. Westley was pronounced deceased at 9:47 a.m..

An investigation by the internal affairs unit, the Texas Rangers and the medical examiner’s office is ongoing, as is protocol. Evidence indicates Westley likely died of natural causes. The autopsy was conducted on Aug. 5, and the final report is pending toxicology results.