his daughter probably wasn't coming home. maybe it was the afternoon, long after heather disappeared, when he was standing at his mailbox talking to his best friend. >> one of my best friends came to the house. he looked at me and he said -- "i -- i hope she didn't suffer." i can't get that thought outta my head. >> reporter: the not knowing made it worse and then stunning news. >> new developments tonight in the heather elvis case. >> reporter: two months after heather's disappearance, sidney moorer, heather's ex-boyfriend was arrested. and he didn't go to jail alone. he was joined by his wife, tammy moorer. both were charged with heather's kidnapping and murder. >> was this surprising to people? tammy and sidney moorer are parents. they have three children. and then now they're involved in this crazy love triangle, kidnapping, potential murder? >> yeah. it's something that you see in a "dateline" episode.