saturdays 11:00 p.m. eastern on msnbc. and msnbc films presents my generation. how cultural and political events shaped four generations. this week it is all about millennials. samantha will know all about that. narrated by kristen bell, who i am already obsessed with. it is like the greatest show. i might watch it a third time, but now you can see her narrating this documentary, and you definitely should. you can see my generation tomorrow 9:00 p.m. eastern right here. from all our colleagues across our network have a great night! see you monday. . braden hoefert: nothing had been missing from the house. this was clearly, a premeditated murder. keith morrison: why would anybody want to shoot jan?

kay king: it makes no sense to me. 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. calls itself one of "northern minnesota's best kept secrets." secrets, a word that will certainly apply to what you're about to hear, one way or the other. kay king: i went with them a couple of times up there. keith morrison: them being chris and jan kruse. this is jan's sister, kay.

kay king: they would like to go fishing. just stay at a cabin. just relax. it was just quality time together. and they did. they both enjoyed being there. keith morrison: in fact, they had a fantasy, chris and jan, a dream to live here all the time. to buy this resort and make it uniquely their own. that was brought up a lot, yeah. keith morrison: jan's dad terry could see how they loved being here. terry pigman: about every evening, jan and chris would take the boat. and jan liked to take pictures of the loon and the wildlife along the lake and the sunsets off of the lake. that was the kind of life they would have liked. keith morrison: and if they owned it, said jan's mom mary jean, frugal jan could use her accounting skills to keep the place in business. and chris? mary jean pigman: chris is, very much, an outdoors person. jan is a people person with the people coming in and out all through the week and keeping them all content, happy, busy. all of those things. keith morrison: chris's brother, josh.

josh kruse: it wouldn't have worked out good for chris and jan because chris is a really good handyman, construction guy. he could have take care of the resort. and jan is pretty business smart. it would have fit them. keith morrison: would have. until-- until the events of the summer of 2015. by the time all this happened, chris and jan kruse had been married for two decades. had lived here in a tiny place called brewster, population 473, the rural southwest corner of minnesota. a good, apparently happy marriage. a happy life. what they had was what i hoped to have someday. i loved our family. keith morrison: isaac, their eldest, was 20 then. his sister bailey was 15 that summer. that was the year, spring of 2015, when isaac's parents discovered that spider lake resort was for sale. and a buzz of excitement filled the house.

did you ever fantasize about the family owning that place? isaac kruse: absolutely. when i found out that they were talking about buying it, i was starting to look for my line of work up in that area. and i thought it would be really fun to help own and help work out on the resort. that's the sort of place that comes multigenerational, too. i mean, you can look forward to an association with it for your whole life. yeah. keith morrison: so come august, chris and jan drove the six hours from brewster to spider lake to engage in some serious negotiating. and there were obstacles-- of course, there were-- as jan told her sister kay. kay king: it was just the timing with bailey having a couple of years left in school. so it wasn't that she-- yes she, did want to buy it. there was just a lot that went into that whole decision. keith morrison: mostly, of course, the money. jan, the bookkeeper, ran the numbers. they offered as much as their bank would allow, but it wasn't enough.

was it jan who faced it first, that they'd have to move on? chris would never own the resort he'd set his heart on. what they said to each other on the long drive home is not recorded, nor is what happened two nights later middle of the night in jan and chris kruse's bedroom. woman: 911 emergency. my mom told me jan had been shot. and i said, ok, i'll-- i'll be there. am i going to the hospital? and mom was quiet. and i said she's going to be ok, right? she's going to be ok? mom said no. she was dead. and i think i just kind of collapsed on the floor and screamed and. why would anybody want to shoot jan?

it mustn't make any sense to you. it doesn't. it makes no sense to me. keith morrison: no. i know what you might be thinking, but maybe it wasn't that at all. coming up-- derek woodford: there was a hole through the wall of the bedroom. and so it appeared one round had been fired and missed. it went through the headboard along the wall where their heads would have been laying. keith morrison: and was this the sine of a possible intruder? i noticed a broken window in a bedroom downstairs. keith morrison: could somebody have gotten through the window that way? someone could have got through the window. it was broken and opened. keith morrison: when "dateline" continues. getting older is part of the journey, even with worsening heart failure. so when i had carpal tunnel syndrome, lower back pain, and shortness of breath, i thought that's what getting older felt like.

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all in one place? my favorites. get xfinity streamsaver with netflix, apple tv+, and peacock included, for only $15 a month. what happened to jan kruse in the early morning hours of august 19, 2015 was dreadfully

obvious at first look, as chris kruse told the 911 operator. keith morrison: jan had taken a fatal shotgun blast to the chest while in bed beside her own husband, chris. keith morrison: as chris called 911, he checked on 15-year-old bailey in a downstairs bedroom. she had heard the gun, of course, but she was unhurt. then the rush of first responders and police and terrible emotions. chris and bailey huddled in the garage while deputies secured the scene. and then as dawn was approaching, chris himself spread the news to the family. he called his son, isaac, off in south dakota. isaac kruse: he said that mom had been shot, and he didn't really know how to tell me that. and i just said, ok, i'm packing my stuff.

i'm on my way. did you know that she was-- that she was dead? assumed, i guess. i assumed it wasn't good from the tone of his voice. keith morrison: he called his in-laws, terry and mary jean pigman. mary jean pigman: chris called us early morning and was extremely broken up/ i couldn't understand what he was saying. i could tell he was in tears, which wasn't a usual thing for chris. pretty-- pretty stoic. and he's telling me, she didn't make it. we lost her. i didn't protect her. keith morrison: but of all the people in the world and especially, this tiny world-- brewster, minnesota, population 473-- why would jan need protecting? why would someone shoot her, the least likely murder victim? she was just a very-- very true and very genuine person. she just enjoyed spending time with her family

and her kids and her husband. and when she interacted with people, it was real. like, she cared. and you wanted to spend time with her. keith morrison: isaac, a young man of few words, said a lot with a little. isaac kruse: she was pretty amazing. i was probably a pain in the ass growing up, but she was always really nice about it and understanding. mary jean pigman: jan's always been outgoing, friendly. she was the one that brought soup to somebody that was sick or baked the cake for whatever was going on. took part in community things. they were both very community-minded. keith morrison: jan had run a daycare in their home years earlier, but the time of the murder had a front office job in a local plant. and here's the thing, said jan's younger sister, vonnie, she was just a regular person. uncontroversial. nobody didn't like her.

vonnie ericson: she's great. just a good person. loved to quilt with her neighbors. loved her family. that was definitely, very important to her. keith morrison: now, she'd never see her children get married, or welcome grandchildren into the world, or be with chris at spider lake. and so, to say her family was in a state of shock would be to profoundly understate the feelings of that awful morning. unaware of the activities of this man. derek woodford: i believe i received the call at about 3:00 am. keith morrison: derek woodford is a senior special agent with the state bureau of criminal apprehension, the bca, in southern minnesota. i know most of the local investigators. when they have a violent crime or homicide or death investigation and need assistance, they call me. keith morrison: so he got dressed and drove to brewster. and before dawn, agent woodford was staring intently at the carnage in chris

and jan's bedroom. derek woodford: what i found was the victim on a backboard. she was deceased. what was the nature of her-- of her injury? derek woodford: it was a shotgun slug that had entered kind of the lower right shoulder and exited out her back. was it your sense that she would have died very quickly? we want to know, obviously, was it right away or could it have been minutes? and i spoke to the medical examiner. and he had thought that she could have stayed alive for three to five minutes after the injury. keith morrison: it was as he approached that bedroom when woodford found two spent shotgun shells. derek woodford: right outside the door. obviously, those i don't pick up at that point. they'll stay for crime scene team to process. but i noticed, they looked to be 12 gauge shot shells that were spent. two of them. two of them. keith morrison: so two shots. two loud shots. one obviously hit jan, but the other one?

derek woodford: there was a hole through the wall of the bedroom. and so it appeared one round had been fired and missed. it went through the headboard along the wall where their heads would have been laying. and then it went out the wall of the house outside. keith morrison: well that was strange, given where the bullet holes were. looked like the person sleeping on the side of the bed closer to the door would probably have been hit. would it be possible for him to have been lying in the bed beside jan and not be hit by whatever this bullet was that went flying past? i thought that bullet could have hit him prior to going through the headboard. keith morrison: preliminary, of course, but he thought about it as he looked around the house. nothing obviously missing. this did not appear to be a robbery. but had somebody broken in? derek woodford: i noticed a broken window in a bedroom downstairs. keith morrison: could somebody have gotten through the window that way? someone could have got through the window. it was broken and opened.

but it had rained pretty heavy off and on, and so the ground was wet. there was a little bit of dirt or a leaf that had blown in, but there were no muddy footprints below that window. keith morrison: so probably, no entry through the window. but somebody was in here. not to rob, not to rape, but to kill jan kruse in cold blood. why would anyone want to do that? derek woodford got in his car, drove to the local sheriff's office. someone he needed to talk to right away. no idea then, how often they'd be talking, or how confounding their conversations might be. coming up-- keith morrison: --an enraged husband with his family

apparently under attack-- derek woodford: their garage burned down. and he had said that he was concerned, could it have been part of now jan being shot? keith morrison: --when "dateline" continues. if you're living with moderate to severe plaque psoriasis or active psoriatic arthritis, symptoms can sometimes hold you back. but now there's skyrizi, so you can be all in with clearer skin. ♪ things are getting clearer ♪ ♪ yeah, i feel free ♪ ♪ to bare my skin yeah, that's all me. ♪ ♪ nothing is everything ♪ with skyrizi, you can show up with 90% clearer skin. and if you have psoriatic arthritis, skyrizi can help you move with less joint pain, stiffness,swelling, and fatigue. skyrizi is just 4 doses a year after 2 starter doses. serious allergic reactions and an increased risk of infections or a lower ability to fight them may occur. tell your doctor if you have an infection or symptoms, had a vaccine, or plan to. thanks to skyrizi,

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use with caution in dogs with a hisman: this is seniorders. special agent derek woodford with the minnesota bureau of criminal apprehension. keith morrison: the man sitting with agent derek woodford in the county sheriff's office was chris kruse. and this is how they began these perplexing interviews. the investigators repeated efforts to match what they had seen to what they were hearing in here. our task too, in a way, as we watch and listen to chris's many interviews and those of the others to try to piece together what happened to chris's wife, jan. who made it happen? and why?

keith morrison: what happened, said chris, was confusing. he was in bed asleep, curled up in the way he always slept with jan. he described it as kind of like spooning. like where she's laying on her side, and he's laying on his side kind of next to her. i guess, the front of his body would be alongside the back of her body. keith morrison: the bang? but, as woodford knew, there were two loud bangs, two shotgun blasts.

keith morrison: and again, on fire? what fire? that was two months earlier said chris in june, just before he and jan and the family were due to depart for their annual trip to spider lake. their garage burned down. and he had said that he was concerned, was it the same or could it have been part of now jan being shot? keith morrison: at the time, said chris, the insurance inspector said it looked like the fire may have been deliberately set. but by whom? nobody could say. keith morrison: interesting. but it was something else about the fire story that occurred right away to agent woodford. it was concerning to me because a fire in a garage smells a lot different than a spent shotgun shell in a house.

he would know that, would he? he does a lot of trap shooting and hunting. and so he would know the difference between a shotgun and smoke from a house or a garage fire. keith morrison: woodford made note of that and went on with his questions. what happened after chris heard what he said was a single, loud bang and saw that his wife had been shot?

keith morrison: everyone reacts to disaster, grief, stress in different ways. but though chris was clearly distraught, woodford was listening very carefully to the words he was using. descriptions of the incident that woodford already knew were not accurate. keith morrison: chris seemed to be saying

that jan was shot as she was lying down in bed, and then she sat up. keith morrison: but if he did lay her down, thought woodford, surely his hands would have been covered in blood. and they weren't.

keith morrison: did he have any idea who that might have been? no, not at that time. because he didn't see anybody, didn't hear anything, but that one shot. and then just notice the back door being wide open. keith morrison: but the idea that a stranger had walked in, killed jan, and just walked out again didn't make sense. in fact, that morning after, nothing about the murder of a loved local in a tiny hamlet in the middle of america made any sense at all. coming up, questions for the other person in the house that night. keith morrison: a story begins to emerge, teenage tensions and maybe troubles--

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