bridge. of course, police didn't know then who had done it. jeff davis says he slipped into dispair and depression that destroyed his marriage and worse. >> i would go to bed every night for the better part of five years and i prayed to god that he'd let me die. >> reporter: colors davis' driver's license and social security card had gone missing. that was certainly the kind of. btk did to his murder victims. there were other assets that strayed from his usual m-o. until rader was caught and police announced dolores davis as the tenth victim, her son was left to wonder. >> i guess there was the remote possibility that there was some phantom serial out there, but honestly, i never connected it with btk. >> how dennis rader led police straight to his door. >> we said, we got him "confessions of btk" continues in a moment.