TERRE HAUTE, Ind.  – An inmate at Terre Haute’s federal prison has been found dead Thursday morning.

Prison staff found 35-year-old Arthur Wheeler was found unresponsive.  The staff reportedly performed life-saving measures, but where unsuccessful.

No employees or other inmates were hurt. His cause of death was not immediately clear.

Wheeler was sentenced in the Central District of Illinois to 240-months for distribution of child pornography and impersonating an officer and employee of the United States.