A&E Network will delve into O.J. Simpson’s Las Vegas conviction in a new documentary special premiering Sept. 21.

The special, O.J.: Guilty in Vegas, reveals new details about Simpson’s arrest in 2007 that led to his conviction for armed robbery, according to A&E. The special features previously unreleased tapes including interrogation audio from the case and voicemails from O.J. himself as well as never-before-seen files and exclusive interviews.

This past July Simpson was granted parole and is expected to be released from prison in October. 

O.J.: Guilty in Vegas is produced for A&E Network by Outpost Entertainment in association with Martin Literary Management. Executive producers for the special are  Jodi Flynn, David George, Simon Thomas, Brent Jacoby, Michael Maloy and Sharlene Martin.