here's keith morrison with mystery in payson canyon. >> there are people on this glorious sun-kissed planet of ours who get up each morning to the miracle of being alive and worry. not that there aren't things to worry about, of course. whether we can do anything about them or not. but some people worry a very great deal indeed and do try to be prepared for whatever. and one of those prepared people was a brilliant retired university professor named kay mortensen whose sister was a woman named fern. >> i said, kay what would happen if i'm not prepared and i'm hungry or my kids are hungry, can we come to your house? he said, no, i'm probably just shoot you. jestingly, he wouldn't have, but he was definitely willing to protect what he had. >> oh, yes, he certainly was. and sure enough, one night -- >> 911, what's the address of your emergency? >> but we're getting ahead of ourselves. what happened that night was a long time coming. it was long before that when kay became a survivalist. with attitude. >> you knew exactly what he thought about everything. even though he knew what he was