as it was for kay mortensen. it was november 16th, 2009, just before thanksgiving. >> hi, this is -- we have the police on the way to help you there, are you sure your dad's cold to the touch? >> kay did not shoot some intruder as he'd long promised he was prepared to do. no, somebody killed him. without firing a shot. and the man on the phone reporting the crime? roger mortensen, kay's eldest son. >> sliced his throat? >> yes. >> it wasn't long before kay's wife darla had made it to the mouth of the canyon and was led to the command post that had been set up just down the hill from their home. that's where they gave her the news. >> your life just comes tumbling down. you know, you have it all planned out. you think you know what it's going to be. and then everything's gone. >> kay caught off guard? not kay, thought darla, impossible. but that seemed to be just what happened. at least that's what roger and pam told the police, and later us. and a very strange story it was that began, they said, when pam received

how the crooks got the drop on kay mortensen. artin's dad and kay were old friends. kay had known martin as a kid. which is why kay, armed against intruders, welcomed him in and turned his back to his killers. >> he had planned for any worst case scenario to happen. except for the one that happened to him. >> in that there are so many ironies, aren't there? >> there are so many ironies, yeah. >> the biggest perhaps? roger and pam's crazy stories about armed intruders was true all along. though sergeant knutzen still had trouble believing it. >> i can pick up the case and i can read through it and i can read through it and i can see discrepancy after discrepancy. i can see -- >> but can you see where maybe that ain't enough? >> yeah. mm-hmm. >> as for treating his possible evidence, the dream sequence of a girl on meth? >> this is evidence? >> well, it's more circumstantial evidence. it's a lead. >> you'd even call that circumstantial evidence? >> i think it's definitely something we'd follow up with. >> saying she had a dream. >>

as it was for kay mortensen. it was november 16th, 2009, just before thanksgiving. >> hi, this is -- we have the police on the way to help you there, are you sure your dad's cold to the touch? >> kay did not shoot some intruder as he'd long promised he was prepared to do. no, somebody killed him. without firing a shot. and the man on the phone reporting the crime? roger mortensen, kay's eldest son. >> sliced his throat? >> yes. >> it wasn't long before kay's wife darla had made it to the mouth of the canyon and was led to the command post that had been set up just down the hill from their home. that's where they gave her the news. >> your life just comes tumbling down. you know, you have it all planned out. you think you know what it's going to be. and then everything's gone. >> kay caught off guard? not kay, thought darla, impossible. but that seemed to be just what happened. at least that's what roger and pam told the police, and later us. and a very strange story it was that began, they said, when pam received

how the crooks got the drop on kay mortensen. it turns out, martin's dad and kay were old friends.welcomed them in and turned his back to his killers. >> he had planned for any worst-case scenario to happen, except for the one that happened to him. >> in that, there are so many ironies, aren't there? >> there are so many ironies, yeah. >> reporter: the biggest perhaps? roger and pam's crazy story about intruders was true, all along. though, sergeant knutzen still had trouble believing it. >> i can pick up the case and i can read through it. and i can read through it, and i can see discrepancy after discrepancy. i can see -- >> but can you see where, maybe, that ain't enough? >> uh-huh. >> reporter: and as for possible evidence, the dream sequence of a girl on meth? this is evidence? >> well, it's more circumstantial evidence. it's a lead. >> you'd even call that circumstantial evidence? a lead? saying she had a dream. >> it's a good dream and it's pretty close. >> reporter: and in the end, the prosecutor admitted, he and the detectives got it wrong. >> based upon the new, physical