Ghosts are energy. When they get everything moving in the right direction, they can go poltergeist. Throw things, break things, write on walls, stab you. I've had a ghost throw a whole block of kitchen knives at me b'fore.

[The phantom in his cell starts fingerpainting with the blood, big roundish flowers that melt into black smears and vanish back into the floor.]

These ghosts are special. Computer ghosts. I dunno. Everyone dead here on tape.