and with kay mortensen gone, roger is set to inherit a fortune. what happened that night. continuing with mystery at payson canyon. here is keith mo@rison. >>> within days of kay mortensen murder, members of his family began hearing deeply troubling reports from the utah county sheriff's office. the investigation was leading detectives told them to his own son roger and roger's wife pam. darla said she couldn't believe it at first. >> i was adamant they could not of done it. i was there biggest defender. >> then detectives asked her to listen to the recorded statements, and she too started to wonder. >> they told lies in the put were suspicious on them. >> gradually the conviction grew. the same for kay's sister. >> i could buy the fact that they were thinking of roger's involvement. >> there were too many things ■ç about their story that did not make sense to fern. there was something else too. a possible witness. remember the woman who suspected her husband was involved? when police found him in salt lake city after drug binge with some friends,