A guard tower at the new Iowa State Penitentiary in Fort Madison on Friday, Apr. 10, 2015. (Stephen Mally/The Gazette) ...

He is making some wild claims in leaked letters from prison that seem to show he has learned no lessons and feels no remorse.

(CBS DETROIT) - Michigan prisons are implementing new software that aims to prevent contraband like letters laced with drugs ...

The letters, marked as being from inmates ... did suspect and found 330 pages of drug-coated paper; a move that left the board "reassured the prison is diligent in tracking down illicit items".