david camm made a public plea asking the person responsible for taking the lives of his wife and two children to come forward. but soon, he would be making a very different plea. after police arrested him for the crimes. as the trial approached, the prosecution felt their case was strong. focusing on the timeline. dna evidence and a marriage in trouble. but david remained unwavering. sure there had to be some kind of mistake. here again is dennis murphy. >> i want my babies back. >> david camm, once an indiana state trooper was now locked in the floyd county jail charged with the murder of his wife and children. >> reporter: tell me about your emotions. >> every time i heard a key jingle outside my door, i would think to myself. oh. this is it. they've figured it out and they're going to come let me out and say, dave, we messed up. >> but that never happened. david's uncle and boss sam