State Police and the Fayette County Coroner are investigating the death of an inmate at the State Correctional Institution at Fayette. Superintendent Mark Capozza says a corrections officer discovered 31 year old David Irby unconscious in his cell during rounds Friday. Irby was taken to Uniontown Hospital where he was pronounced dead. He was serving a 5-to-14 year sentence for aggravated assault with a deadly weapon on a conviction in Carbon County. He had been at SCI Fayette since August of last year. The coroner will determine the cause of death. No other information is being released at this time.