>> when confronted with lucy's confession, joe snodgrass angrily denied any involvement in the murder of his wife and he called his former housekeeper a liar. to prove it, he permitted investigators to search his house. >> they found these insurance policies under a mattress. and they said, what are these insurance policies under the mattress? and he said, i really didn't want you to find those, you know. a little suspicious looking, i didn't want you to find that. >> the policies revealed something troubling. joe had recently increased the amount of his wife's life insurance from $200,000 to over $400,000. and on joe's desk at work, investigators found even more potential evidence. >> they came up with a bunch of floppy disks, you know, those big 5 1/4 disks that we used to use. >> but just as the investigation was starting to take shape,