that killed two teens in north dakota because he shipped them to one of his clients in grand forks named andrew spofford. >> at any time along the way before the deaths did you consider i've got to stop this? >> i did. you know, it was the cause of probably quite a few arguments between my wife and i. she didn't want to have anything to do with it, and she didn't want me to have anything to do with it. and i should have listened to her advice. >> at one point i think she destroyed your office. >> she did. >> she had had enough. >> she had. >> she knew you were doing wrong. >> she did. and so did i. >> carlton says he was becoming paranoid. he had good reason. one of his colleagues, a man named harry george mickeles, suddenly quit, and records were missing. in grand forks federal prosecutor chris meyers got a phone call that would crack the case.