At 49 years old, Dennis Skillicorn no longer looks like the picture on the ID clipped to his starchy, prison-issued shirt. His mustache and hair have gone from brown to gray. Blurry tattoos set into his arms have faded to the same slate blue as the eyes magnified behind his glasses. Skillicorn lives on death row at Potosi Correctional Center, a maximum-security prison near rural Mineral Point, Missouri. He is scheduled to die just days from now, on May 20. Skillicorn believes he's going to heaven. "Absolutely, I do," he says. "Yes. Thanks to Jesus Christ, and only because of Jesus Christ, can I go to heaven." Of his execution by lethal injection, he says, "I believe that it's just a doorway. It's not an end." In 1996, Skillicorn was convicted of murdering Richard Drummond, an AT&T supervisor who pulled over to help Skillicorn and 2 other men whose car had broken down near Kingdom City, Missouri. Skillicorn, Allen Nicklasson and Tim DeGraffe