It's bad enough being incarcerated when you're alive but just imagine what it would be like if you died, and instead of crossing over to the other side and being released from living behind bars, you're earthbound and stuck in jail for eternity.  Creepy incidents at these prisons and jails may indicate some inmates and officers never left. The amount of pain, trauma, and terror associated with these facilities makes them inevitable hotspots for supernatural activity. Author Corvis Nocturnum takes us inside 15 of the most haunted prisons in the United States to see how those restless spirits are living out their sentences in the afterlife