>> the fiber evidence that was found and the fiber evidence that i had looked at was apparently so compelling that the defendant didn't want to continue on with this case, which is quite unusual for a capital murder trial. >> so, luna changed his plea to guilty and admitted what he had done in open court. >> mr. luna, how do you plead to the charges of capital murder? >> guilty. >> he testified that he enjoyed it, that he lived for the adrenaline rush that it gave him to victimize people and to get away with it. i cannot fathom the terror that that young man went through. and really, there could be nothing worse than seeing a joe luna walk out of your closet. >> in march of 2006, luna asked the jury to give him the death penalty.