door and there was old sparky. and it was unforgettable. >> this is the electric chair, which is maintained by the kentucky state penitentiary in order to complete executions by electrocution. it was originally built somewhere in the 1900s. >> it's just leather and wood and metal like any other chair, but there's this unmistakable feeling. you know people died there. >> some of kentucky's death row inmates can choose between the electric chair and lethal injection. that's also the case in the neighboring state of tennessee. when we visited there, we met a death row inmate who soon would face that decision. and as far as darrell holton was concerned, the sooner the better. >> convicted of four counts of first degree murder. my children. >> throughout the entire interview, holton spoke in a calm, coherent manner about what led to his nightmarish actions. >> got out of the army.