what happened to heather elvis? the 20-year-old vanished in the middle of the night. vestigators believe that heather's ex-boyfriend sydney moore had arranged to meet her at a secluded spot. they thought he may have had help. as police methodically continue to put together the puzlet. heather's family was grappling with a new reality. once again, here's andrea caning with "the landing." >> terry elvis isn't exactly sure when he realized 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 pest friend. >> one of my best friends came to the house. he looked at me and he said, he says, i hope she didn't suffer. and i can't get that thought from my head. >> the not knowing made it worse. and then, stunning news. >> new developments tonight in the heather elvis case. >> two months after heather's disappearance, sydney moore heath heather's ex .friend was arrested. he didn't go to jail alone. he was joined by his wife, tammy moore. both were charged with tammy's kidnapping and