we're looking for mary alice. i don't know where she is. you know? i even made a pretense of anything i can do to help, let's do flyers, let's do this, let's do that. >> clapsy's offer to help, however, fooled no one. four days later he and his roommate were arrested. both confessed. >> i usually review inmates' records. i realized during the interview that i was actually talking to him on the anniversary date of the murder. and he had been so unemotional and almost cavalier in his telling of his crime, so i decided to ask him what day he committed the murder. >> august 4th, 2001. >> you know what today is? >> yeah, i know what today is. >> what happens to you on august 4th? >> well, now that you've brought it up, something is probably going to happen to me that i get to deal with all by myself, but usually nothing. it's not an anniversary i celebrate or don't celebrate. i can't posture and say, you know, i think about her all the time. i don't. she's dead. now, how i feel about what i did is a different story. i feel horrible. i mean, i can't believ