Authorities are investigating the death of an inmate at the Federal Correctional Institution in Terre Haute.
On Saturday, 68-year-old Robert Neal was found unresponsive at the facility. He was pronounced dead by the Vigo County Coroner.
The FBI was notified and the incident is being investigated as an apparent homicide.
Authorities say no staff or other inmates were injured and at no time was the public in danger.
Neal was sentenced in the U.S. District Court for the Northern District of Texas to 327 months for Wire Fraud and Aiding and Abetting.
He had been in custody at FCI Terre Haute since December 20, 2010.
FCI Terre Haute is a medium security facility that currently house 907 male offenders.