UPDATE: Numerous sources are now citing an Arkansas Department of Corrections spokesperson as saying the three convicted inmates in this case left the maximum security unit "with all their possessions."
WREG is reporting two of the three will be released tomorrow. Their source is reportedly the father of one of the victims. WMC is reporting all three convicted men are in custody of Craighead County deputies.
There is a lot of single-sourced reporting happening and a LOT of speculation on Twitter. My advice would be to wait and see what develops tomorrow.
The best local source for developments in my book is the Arkansas Times.
Also worth a look, if you're willing to pop for $15, is Mara Leveritt's site. Leveritt has covered the case since its beginnings and has written the definitive book on the subject.