An Alabama inmate was stabbed to death Sunday. A Department of Corrections statement says DeMarko Carlisle was stabbed to death during an altercation at Elmore Correctional Facility. The agency has a suspect, but officials aren’t releasing the prisoner’s name. Carlisle was serving a life sentence after being convicted of robbery in Jefferson County in 1999. Carlisle is the second inmate killed at the Elmore prison in 10 days. Lawmakers are considering a plan to construct new prisons and close older ones.