derek woodford: he was there in the room with jan when this happened. the word divorce being thrown around. steven groschen: from the beginning, they had one suspect. it was chris. there's another person here that could have done this, and it's jeremy. that would be a motive for murder. he was a concern. you see it on tv happening to other people. didn't ever think that this would be something that we would go through. keith morrison: two shots in the dark, and then 1,001 questions in the light of day. kay king: i guess, you just don't think bad things will happen in a small town to good people. and it did. keith morrison: it was-- this was where happiness lived. happiness and memories and desire. the wishes of dreams just out reach. its name is spider lake, one of those thousands of lakes that filled up the rocky gouges the glaciers left behind. maybe that's why they sparkle the way they do. why this one in minnesota spread out every which way. and here, near the tip of its northern arm is, the spider lake resort. family cabins by the day or week. call

derek woodford: i actually drove that at speed limit to the shop and back. o the shop, it was only three minutes. keith morrison: woodford broke the gun news to chris. keith morrison: but his mind may not have raced for long. even though they were clearly suspicious of him, they still had more investigating to do. so chris was free to go. and nothing happened for months, for years. the whole family tried to let it go as they settled into the hard business of learning to live without jan. and without knowing who killed her, except that they were sure it wasn't chris. there is nothing to think that chris had any involvement in this. nobody could fake anything that much and not slip up. keith morrison: what's more, they all said they never saw chris get violent or be mean to jan ever. i mean, they truly loved each other. and he never had a harsh word about jan ever. and the same with jan towards chris. keith morrison: so maybe, they'd just never know who killed jan. did you have an expectation that this was just going to go away and they'd never find out who did

derek woodford: to me, almost like she saw it coming. yeah. and so that was a concern based on what chris had told me the first time, that she was shot when they were laying down. keith morrison: and here, chris seems to alter the narrative. says he awoke to find his wife sitting up beside him. keith morrison: so was this man changing his story? keith morrison: then agent woodford asked chris again, about what he heard jan say that night. keith morrison: chris was not under arrest, of course. though, he had to know he was under a microscope. so the answers he was giving, was he just confused? what was going on here? agent woodford was all too familiar with the worst of human behavior. very aware, too, that he was talking to a grieving husband. but aware also that grieving spouses and relatives and friends are fully capable of the most determined mendacity when hiding culpability for the worst thing they've ever done. so he and his fellow investigators were certainly not finished with chris kruse and things that seemed, to them, odd. keith morr