liant. set your own goals. figure things out. so if i had any words of advice, don't wait for the praise. go do it. i don't know, figure it out. (orchestral music) (orchestral music) that video snowballed into this big mystery, and your family is right in the middle of it. kelsey would never, ever have abandoned her baby-- never.

i'm trying to find a missing person. a supervisor asked me to interview a girl named krystal. we didn't really have any idea who she was. she told us everything. this woman knew about a murder, covered it up. she could have stopped this from happening. he had a hold on her that he totally exploited. this whole thing is crazy. took my breath away. [theme music]

andrea canning (voiceover): you're witnessing something highly unusual-- a woman at the center of a murder investigation reconstructing the scene of the gruesome crime. andrea canning (voiceover): her name is krystal lee kenney, a former nurse and one-time rodeo queen, a mother of two small children. andrea canning (voiceover): and a key player in the murder case of another young mother. andrea canning (voiceover): watch carefully. is she a witness, an accomplice, or something else? and was the sentence she received fair and just or just the opposite? you called this making a deal with the devil. i did. andrea canning (voiceover): we'll take you inside the investigation and hear from the investigators who cracked the case.

it was horrific. andrea canning (voiceover): and from family members living through it all, giving their first ever interview. i still wait for her to call. really? our kelsey can't be gone. andrea canning (voiceover): our story begins with a most unremarkable scene. november 22, 2018, a mother with her baby was captured on security camera at a local store in colorado buying last minute groceries for thanksgiving dinner. but this video would go viral, because it was the last time she was ever seen in public. her name-- kelsey berreth. more than a week after that thanksgiving day, kelsey's mom cheryl was home in idaho with a nagging feeling. she'd last spoken to her daughter on the phone thanksgiving morning. kelsey was preparing to have dinner with her fiance, patrick frazee, and their daughter kaylee. small talk, basically. she'd fix kaylee cinnamon rolls,

celebrate thanksgiving. and kaylee didn't like them. she wanted the honey nut cheerios. andrea canning (voiceover): two days after that, cheryl received a text from kelsey's phone saying, i'll call you tomorrow. but kelsey didn't call. at first, that wasn't surprising. kelsey juggled motherhood as well as looking for a home so she and patrick, who lived on a ranch with his mom, could move in together. she also had a demanding job as a flight instructor. she's a busy lady. she works long shifts. she spends a lot of time with kaylee. it takes a lot to be a mom, a working mom. andrea canning (voiceover): still, kelsey rarely went this long without calling. so after about a week, cheryl called kelsey's fiance patrick. he told her he'd last seen kelsey on thanksgiving day, when he'd picked up their daughter. and then he said something that took cheryl completely by surprise. he told her kelsey had called and had broken up with him, and seemed to have taken off. i can't think of anywhere she's ever gone that she hasn't told me this is the plan.

it's just not in her character to just take off and be gone. cheryl called to ask if we've heard from kelsey. and we hadn't. andrea canning (voiceover): scott and kim morin are kelsey's aunt and uncle. the family was growing more anxious by the minute. i remember laying in bed just calling kelsey's phone, leaving a message to have her call me. andrea canning (voiceover): it was now 10 days since cheryl had last spoken with her daughter. she called the police. what happened on day one of this investigation? december 2 was day one, and cheryl berreth called in a missing person for kelsey. andrea canning (voiceover): chris adams went on to work with the colorado bureau of investigation. but back in december 2018, he was with the woodland park pd and led the investigation into kelsey's disappearance. this was his first time speaking out about the case. and officers were dispatched. they initially went out to her house, tried to make contact, were unable to. no one answers? correct.

andrea canning (voiceover): cheryl's anxiety turned to panic. she and kelsey's brother set off for colorado. she calls us back and says, clint and i are flying down. pray. it's chilling even just hearing you say that. yeah. andrea canning (voiceover): as kelsey's family agonized over her whereabouts, investigators went back to her condo. we're just trying to find evidence of where she may have gone. did she leave behind her phone, her purse, anything that would be out of the ordinary? we never found her phone, her purse, or her keys. both vehicles were out in the driveway. she's got a black sedan and a red chevy truck. andrea canning (voiceover): also in the condo, investigators found kelsey's makeup bag, something her family said she never traveled without. on the stove, cold cinnamon buns. it was that evening i realized certain things weren't adding up. the car's there, but not the keys. she's a young mother. she's not with her kid. so i requested assistance from the fbi and cbi.

greg, that's when you enter the case? yes. andrea canning (voiceover): greg slater is also an agent with the colorado bureau of investigation. he's been in law enforcement for more than 35 years. this, too, was his first time speaking about the investigation. and what are your initial thoughts? you know, first you're thinking, all right, we have a missing mom. check inside the house to see if there's any type of a struggle that may have taken place in the house, that there had been know a burglary or something of that nature, that that box had been checked. we recommended that they start calling around to local hospitals to see if she was there. andrea canning (voiceover): by now, investigators had found a grocery store receipt on kelsey's kitchen table. it was dated november 22, thanksgiving day. they pulled the security footage from the grocery store, and there was kelsey. they started to build a timeline of her whereabouts. we knew that kaylee was with her.

we knew that she had made purchases. those purchases, the receipts had been found in the house. there was some bread that was found in the house. she had talked to her mom earlier on thanksgiving day about a bread recipe. there were other food articles that she had purchased that were consistent with the conversation she had with her mom. so we did know that she had not been abducted from the safeway. so that was one thing that we could eliminate. andrea canning (voiceover): meanwhile, cheryl and kelsey's brother arrived in woodland park and stayed at kelsey's condo. they spoke with investigators, cheryl recalling her last conversation with kelsey thanksgiving morning. she's been happy. she's been wanting to decorate for christmas and excited about that. she was planning her christmas list and calling people wanting to know what was on their list for christmas. her job was going well. yeah, i just don't see any issues in her life at this time. andrea canning (voiceover): investigators also spoke with kelsey's fiance, patrick.

was patrick cooperative? he was. andrea canning (voiceover): patrick told investigators the same thing he told cheryl. he had last seen kelsey thanksgiving day. he said he picked up baby kaylee in the alley by kelsey's home. he also went to the local credit union and walmart and tended to his cattle in the afternoon. sure enough, security camera footage showed him at the credit union and walmart. patrick also gave the investigators his cell phone. what do you find on patrick frazee's phone? oh, we find the text message exchange between patrick and kelsey. andrea canning (voiceover): investigators found texts that backed up his story, that kelsey had broken up with him on the phone two days after thanksgiving. patrick had messaged. "if this is truly what you want, i'll respect your wishes and give you space. let me know if you change your mind." "i'll leave you alone now. you can call me when you decide what you want to do." text messages the day after show kelsey in distress. one read, "do you even love me?" and patrick replied "why would i bend over

backwards and stand behind you through everything if i didn't? so to answer your question, yes, i do." he told investigators that was the last time he heard from her. kelsey's manager at the flight school said he also received a text from kelsey's phone. what did it say? not to expect her in, that she's going to visit her grandmother. andrea canning (voiceover): and investigators had to consider kelsey's profession as a pilot. did you look at airports, that maybe she had taken a plane somewhere to get away? personally, i did. no flight plans were filed? no sightings of kelsey? no. andrea canning (voiceover): to find kelsey, the investigators needed to know more about her. they dug deeper and uncovered a complicated life. coming up, where was kelsey? we are treating kelsey's disappearance as a missing persons case at this time. kelsey, we just want you home. and we won't quit looking. andrea canning (voiceover): the mystery was just beginning, and one woman would hold the key.

we didn't know how vital she was going to be to the entire story about what happened to kelsey berreth. i think that she knew that we had plenty of evidence against her. she was smart enough to realize that i can't hide this anymore. part of me wants to strangle her. part of me wants to hug her. andrea canning (voiceover): when "dateline" continues. - bye, bye cough. - later chest congestion. hello 12 hours of relief. 12 hours!! not coughing? hashtag still not coughing?! mucinex dm gives you 12 hours of relief from chest congestion and any type of cough, day or night. mucinex dm. it's comeback season. why just give a gift, when you can give a gift with meaning? shutterfly, make something that means something. enjoy 40% off your order with code gifts40. order now for holiday delivery. when you sleep more deeply, you wake up more energized. introducing purple's new mattresses.

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us continue the life-saving research and treatment these kids need now and in the future. speaker: cancer makes me feel angry, like not in the feel on the outside, just the inside. i'm angry at it. speaker: when your kid is hurting and there's nothing you can do about it, that's the worst feeling in the world. [music playing] narrator: 1 in 5 children diagnosed with cancer in the us will not survive. speaker: those that donate to st. jude, i hope that you will continue to give. they have done so much for me and my family. [music playing] narrator: join with your credit or debit card for only $19 a month, and we'll send you this st. jude t-shirt, or, for a limited time only, join for $39 a month to receive this exclusive st. jude jacket you can proudly wear to show your support.

speaker: are you ready to go have some fun? speaker: yeah. speaker: when we came here, we didn't know what tomorrow would hold. st. jude showed us that tomorrow, there's hope for our little girl to survive. narrator: let's cure childhood cancer together. please donate now. [music playing] fearless, determined, always up for a challenge-- that's what kelsey's mom cheryl was telling investigators about her daughter who'd vanished on thanksgiving day. she's a good person. she's very dedicated, very loyal, reliable. she loves god. i couldn't ask for a better daughter. andrea canning (voiceover): kelsey grew up on her family's farm near moses lake, washington about 100 miles from spokane. kelsey was a light. she lit up a room.

she lit up your heart. andrea canning (voiceover): kelsey's uncle scott is a pastor at the homedale friends community church near boise, idaho. he and his wife kim had a very close bond with kelsey. this was their first interview about the case. she was smart. if she was determined to do something, she fought. she put it all in. she was an incredible woman to watch. you wanted to be with kelsey. you wanted to hang out with her you wanted to hear what she had to say. and at some point, she's going to make you laugh. what made her happiest? being on the farm. she loved being on the farm. she wanted to live there. and i think she enjoyed this little girl driving this big tractor. watching her cut hay just made her happy. andrea canning (voiceover): kelsey discovered her lifelong passion at a very young age. she loved being a pilot. she loved thinking about flying,

from watching crop dusters on the farm to in high school going flying with her friends. she actually wanted to be a crop duster? yes, for a time. that would have been her dream job, for a time, was being a crop duster. you don't hear that every day from a little girl. no, i think it was exciting. she was fascinated with it. she loved a challenge. andrea canning (voiceover): after high school, kelsey enrolled in a flying program at her local community college. kelsey graduated and eventually landed a job as a flight instructor in spokane. she also dipped her toe in the world of online dating. and around christmas 2015, someone piqued her interest. his name was patrick frazee. we knew he was a rancher. we knew he was successful at the time. we knew that he was a farrier. andrea canning (voiceover): as a farrier, patrick trimmed and shoed horse hooves. he lived on his family's ranch more than 1,500 miles from kelsey in florissant, colorado.

but the distance didn't seem to matter. over the next year, their relationship flourished. i think they were online interactions for months. he came down, and they met each other in person. it was-- i don't know-- a few months later, we found out that she was heading to colorado. andrea canning (voiceover): in 2017, kelsey found work with doss aviation, a flight school for us air force trainees. she was sort of getting the best of both worlds, being able to fly, being able to have a ranch. she loved being outdoors. so this was good. this was good news. so you must have been happy for her. yeah. andrea canning (voiceover): and there was more good news. kelsey and patrick learned they were expecting. she always wanted to be a mom. she always wanted a family-- pilot and family. andrea canning (voiceover): that october, they welcomed daughter kaylee. she's always grown up loving family. to have her own family or to start a family

was something she, i think, wanted. as soon as kaylee was born, she was loved. and nothing was going to stop that. andrea canning (voiceover): in may 2018, kelsey moved into a condo in woodland park. it was a 20-minute drive from patrick's family ranch, and the flight school was about an hour in the opposite direction. it was a stressful situation, as the new parents took turns caring for kaylee. patrick was a hands-on dad, often taking kaylee with him on farrier jobs while kelsey was away at work. he had these little wool socks that he put on on top of her other socks. andrea canning (voiceover): clint klein, a longtime client of patrick's, saw firsthand how patrick doted on his daughter. he had this little jumpsuit for her, and he kept her where he could see her. and he took very good care of that little girl. while one was working, the other one had her, and vice versa. they seemed to have that going pretty well. so everything's coming together for kelsey. right. andrea canning (voiceover): perhaps not everything.

as investigators put together their timeline, they found that by thanksgiving, kelsey appeared run down. the day after the holiday, patrick received a text from kelsey's phone saying, "actually do you mind keeping kaylee tonight? sorry. i'm really tired and stressed out. call me in the morning when you guys wake up." patrick replied with concern. "sure. i don't mind. what's going on? are you ok? do you need anything, or can i do anything?" the response seemed to come from an exhausted kelsey. "no, i'm fine. just worn out. talk to you guys tomorrow." not long after that, those texts dried up, and no one seemed to know where kelsey was. but patrick's friend clint had an idea. he said he knew of another side of kelsey altogether. coming up, new questions surrounding kelsey. had she vanished before? she disappeared for some time frame.

disappeared? he didn't know where she was. what did he think happened during those days? he didn't know. andrea canning (voiceover): and where was her gun? does that concern you at all, that the gun's missing? it does. andrea canning (voiceover): when "dateline" continues. when i was diagnosed with h-i-v, i didn't know who i would be. but here i am... ...being me. keep being you... ...and ask your healthcare provider about the number one prescribed h-i-v treatment, biktarvy. biktarvy is a complete, one-pill, once-a-day treatment used for h-i-v in many people—whether you're 18 or 80. with one small pill, biktarvy fights h-i-v to help you get to undetectable—and stay there whether you're just starting or replacing your current treatment. research shows that taking h-i-v treatment as prescribed and getting to and staying undetectable prevents transmitting h-i-v through sex. serious side effects can occur, including kidney problems and kidney failure. rare, life-threatening side effects include a buildup of lactic acid and liver problems. don't take biktarvy if you take dofetilide or rifampin. tell your healthcare provider about all the medicines

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♪ you gotta give the people ♪ ♪ you gotta give the people ♪ ♪ you gotta give the people ♪ ♪ what they want ♪ wait till you see this. as police stepped up the hunt for missing mom kelsey berreth, her disappearance made the news. we are treating kelsey's disappearance as a missing persons case at this time. i'd just like to talk to you a little bit about kelsey. she's not the kind that runs off. this is completely out of character. kelsey, we just want you home. call us if you can, and we won't quit looking. andrea canning (voiceover): patrick did not attend the news conference about his missing fiancee. four days later, police served a search warrant at his ranch. a lot of developments over the weekend in the search for that young colorado mother who vanished mysteriously more than three weeks ago now.

andrea canning (voiceover): on patrick's ranch, they took these photos, including this one-- patrick's list of what he did the day kelsey disappeared. he had written down, picked up kaylee, ran errands, went to walmart. then he puts, check cattle. and it has him home having thanksgiving dinner. they had come in. they had checked his place, and they didn't find anything. they were moving on. did he sound upset at all? sounded concerned. andrea canning (voiceover): but patrick's friend clint wasn't especially concerned that kelsey was missing. he says patrick had already confided to him kelsey had issues and sometimes just took off by herself, leaving patrick and the baby. she disappeared for some time frame. disappeared? he didn't know where she was. she left. and then the next thing he knew, she had checked into a rehab. what did he think happened during those days? he didn't know. he just said that after she got out of the rehab that first time, she went into rehab a second time

is what he had told me. alcohol, drugs? what i gathered was is it was alcohol. andrea canning (voiceover): clint believed maybe kelsey's thanksgiving disappearance was another relapse of some kind. when you first heard that kelsey had disappeared, did your mind go back to those times that patrick had told you about, the fact that she would disappear? yeah, that's what my first thought was is, well, she's in rehabilitation again somewhere. and she'll show up. you know, that 20 days or so, whatever the rehab time frames are, that she'll show back up. andrea canning (voiceover): but kelsey didn't show back up. you don't know anything about this woman. so is that one possibility that you have to consider, that she willingly disappeared, or that she took her own life? it is. andrea canning (voiceover): as the investigators delved into kelsey's past, they didn't find any evidence of drug or alcohol abuse, but did find about three months before thanksgiving, kelsey had been to a clinic that treats depression. it's a facility in california, where clients pay

to go to get over some depression, sleep deprivation, anxiety, things of that nature, in more of a holistic approach as opposed to using medication. it was a 10-day clinic. so it's just more to give kelsey an opportunity to get some rest and get back to a position where she felt that she could function better, both as a mom and as a pilot. kelsey is not in the best frame of mind she's ever been. to go away from your child and to go to a facility like that says to me she needed to clear her head. i think she was just worn out. and she's trying to figure out why am i tired? why am i feeling maybe a little depressed? andrea canning (voiceover): 1,000 miles away near boise, idaho, kelsey's family knew she had bouts of fatigue, but said her problems weren't bad enough to make her run away. i don't think she suffered from depression

more than anyone else does. especially when you're so tired. and new baby. kim: and new baby, yeah. i would say she'd have a down day. there was times she was more tired and needed some rest. i would never put her in that category of depressed. yeah, she definitely had a lot on her plate. she did. andrea canning (voiceover): patrick had already told police he and kelsey broke up over thanksgiving. he said in the days that followed, they continued texting to tie up loose ends. he and kelsey have decided to end their relationship. but other than him returning property that belonged to kelsey, her car keys, her gun, that was the extent of it. there was nothing out of the ordinary. he didn't mention any issues or concerns that he had with her at that time at all. andrea canning (voiceover): the whereabouts of kelsey's gun was a cause for alarm, especially when investigators recalled one of the text messages from kelsey's phone to her mom on thanksgiving.

it read, "we went shooting today. was so much fun shooting my gun again. patrick is going to let me keep it." but when police searched kelsey's home, there was no sign of it. there's no gun in the condo. correct. does that concern you at all, that the gun is missing? it does. it was one of the things we looked for once we learned about it. but that could also lead to a possible suicide scenario. that she might have used the gun on herself? yeah. you had to seriously consider that? we did, yes. andrea canning (voiceover): but then something completely unexpected happened that would change the trajectory and tone of the investigation. kelsey's brother made a worrying discovery in kelsey's condo-- a smudge on the bottom of the toilet that looked like blood. police hadn't noticed it when they'd been in the condo because they hadn't been looking for forensic evidence. the initial search, we were just looking for evidence of a disturbance, obvious, anything

that could lead us to where kelsey is at the moment. no, we don't get on our hands and knees, lift things up, look at the bottom of a toilet. we don't do that. andrea canning (voiceover): after finding the smudge on the toilet, cheryl and kelsey's brother took a closer look at the rest of the condo and found suspicious smears on the furniture and appliances. does this now spark a full blown search of the condo? yes. mm-hmm. andrea canning (voiceover): they sprayed kelsey's bathroom with blue star agent, a substance that glows on contact with blood. suffice to say, the bathroom glowed pretty well. so the bathroom lit up like a christmas tree. correct. andrea canning (voiceover): kelsey's home was now being treated as a crime scene. the experienced investigators began to suspect she'd been murdered, and teams of local, state, and federal law enforcement agencies descended on the condo. then, suddenly, 800 miles away, there

was a baffling new development that would break the case wide open. coming up, a startling clue from kelsey's cell phone. kelsey's phone gave a location near gooding, idaho. are you thinking maybe she's in idaho right now? absolutely. andrea canning (voiceover): and an intriguing new lead. enter the rodeo queen of magic valley. you're really starting to connect dots now. yes. andrea canning (voiceover): when "dateline" continues. go-friends, gather! keke! chris! jason! boop! friends. let's go, let's go, friends! hold onto your dice. woohoo!! -nice frosting, pratt. -thank you! how we doin', keke? tastes like money to me. i can't go back to jail! wait, did you rob my bank? -hehe. -are we winning!? -ha ha ha! -oh boy! yeah! money, power, friendship. let's go!

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and jessica layton with the hours top stories. hundreds of thousands of ukrainians are without power after russia attacked the country's energy infrastructure. temperatures in ukraine are already below freezing. thousands protested in georgia after that prime minister announced the country would halt its european union

ascension bid and rain did not keep crowds from attending the macy's thanksgiving day parade in new york city. about 30 million tuned in at home. and now, back to dateline. . and now, back to dateline. the trail led unexpectedly to idaho. kelsey's phone gave a location near gooding, idaho on november 25, at about 5:13 in the afternoon. andrea canning (voiceover): kelsey's phone had pinged off a cell phone tower near this idaho gorge. so even though her condo was being treated as a crime scene, investigators had to consider the possibility that kelsey might still be alive and on the move. are you thinking maybe she's in idaho right now? maybe she decided to get away and didn't tell anybody. absolutely. any idea where she would have been going? is there any theories about what was in idaho? her parents live in idaho. andrea canning (voiceover): the news reached kelsey's aunt and uncle, kim and scott. when you heard that kelsey's phone had pinged in idaho,

did that give you just even a glimmer of hope that maybe our instincts are wrong, maybe she's ok? it did for just a minute, yeah. but it pinged in the wrong part of idaho. andrea canning (voiceover): kelsey's parents lived in northern idaho; her phone pinged in the southern part of the state. when you leave colorado and you head to northern idaho, you go through montana. you don't go through southern idaho. kelsey had no reason to be in that part of the state. it doesn't make sense. that was not the route to her parents' house. that was not the route, no. andrea canning (voiceover): investigators asked the local sheriff's department to check out the location of the ping, but they didn't find kelsey. so that dashed your hopes right there? - yep. - yep. andrea canning (voiceover): but there was an idaho connection. when patrick turned over his cell phone to police, they found an idaho number in his call history, and they learned the number belonged to a woman. why did she stick out, this woman in particular? the timing of a phone call after the last ping

on the 25th, it was i want to say 10 minutes had gone by between when kelsey's phone last pinged in idaho that patrick's records showed this 208 area code phone number. andrea canning (voiceover): the woman's name was krystal lee kenney. so it's just this bizarre timing of and this idaho connection. correct. and krystal lives in idaho. yes. andrea canning (voiceover): krystal and what she might know about kelsey's disappearance suddenly became the most important lead in the investigation. are you now learning more about krystal? who is she? yes, we knew that she had a family. that was about it. she didn't have a criminal history or anything like that, active on social media to an extent. into horses, ranching, that lifestyle. what was her personality like? very loving, very caring. andrea canning (voiceover): laura stutzman

is a friend of krystal's and has known her since she was 10 years old. she really is the type of girl who would give you the shirt off of her back. andrea canning (voiceover): krystal worked at a local hospital as a senior registered nurse. she wasn't just a nurse; she was a good nurse. anything krystal did, she did it very well. andrea canning (voiceover): in her early 20s, she was even crowned rodeo queen of magic valley, a title awarded for beauty, horsemanship, and good character, which made her something of a local celebrity. is it a really big deal? would she be like julia roberts in twin falls? i don't know. she-- oh, well, she would probably be bigger than julia roberts. because everybody knew and loved krystal. andrea canning (voiceover): laura said rodeo queens embody tradition and what local people call the cowboy code. the cowboy code is living life correctly. it's helping your fellow man. it's helping your neighbor.

it's just being a downright good person. honesty, integrity, community, god? you betcha. andrea canning (voiceover): in short, krystal seemed like the last person who'd be mixed up in the disappearance of kelsey berreth. nevertheless, investigators had to check her out because of what they found in patrick's call history. what are you seeing between their two phones, krystal and patrick? a lot of phone calls. i couldn't put the number on it, especially from that november 22, 25 through december 4. this critical time period. the critical areas, yes. you're really starting to connect dots now. correct. what does that tell you right there? we need to talk to krystal and find out what's going on. andrea canning (voiceover): by now, the feds were involved in the case. an fbi special agent was about to give krystal a call. coming up-- i identified myself as the fbi, said we are looking for a person named kelsey berreth. she says, i have no idea who kelsey berreth is.

andrea canning (voiceover): krystal tells her story. and one thing becomes crystal clear. she lied, and we could refute those lies easily. is krystal realizing she's in a whole lot of trouble? yes. andrea canning (voiceover): when "dateline" continues. billy: one second, grandma. this guy is going to buy my car. okay? grandma: you need carvana... entering plate number... grandma: no accidents, right? billy: no. grandma: generating offer... carvana can pick it up tomorrow! billy: that's an amazing offer. announcer: sell your car the easy way with carvana. - bye, bye cough. - later chest congestion. hello 12 hours of relief. 12 hours!! not coughing? hashtag still not coughing?! mucinex dm gives you 12 hours of relief from chest congestion and any type of cough, day or night. mucinex dm. it's comeback season.

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and i'm keeping the weight off. i'm reducing my risk. wegovy® is the only weight-management medicine proven to reduce risk of major cardiovascular events such as death, heart attack, or stroke in adults with known heart disease and obesity. don't use wegovy® with semaglutide or glp-1 medicines, or in children under 12. don't take if you or your family had mtc, men 2, or if allergic to it. tell your prescriber if you are breastfeeding, pregnant, or plan to be. stop taking and get medical help right away if you get a lump or swelling in your neck, severe stomach pain, or any of these allergic reactions. serious side effects may include pancreas inflammation and gallbladder problems. call your prescriber if you have any of these symptoms. wegovy® may cause low blood sugar in people with diabetes, especially if you take medicines to treat diabetes. call your prescriber about vision changes, if you feel your heart racing while at rest, or if you have mental changes. depression or thoughts of suicide may occur. common side effects include nausea, vomiting, diarrhea, constipation, stomach pain, flu, or upset, headache,

feeling tired, dizzy, or bloated, gas, and heartburn. some side effects lead to dehydration, which may cause kidney problems. with wegovy®,... ...i'm losing weight,... ...i'm keeping it off,... ...and i'm lowering my cv risk. check your coverage before talking to your prescriber about wegovy®. john grusing, then an fbi special agent, had joined the investigation into kelsey berreth's disappearance, and was now dialing the number of the idaho nurse named krystal lee kenney. when he reached her, she was with a group of friends in las vegas attending the national finals rodeo, the super bowl of rodeo. i identified myself as the fbi, said we are looking for a person named kelsey berreth. she says, i have no idea who kelsey berreth is. andrea canning (voiceover): the fbi agent kept probing, asking krystal if she knew anything about kelsey's cell phone that had pinged off a tower near an idaho gorge. i ask her, are you aware of the phone?

the phone had already been on national news, and it was even the people in twin falls were aware that a phone had pinged off that gorge. and she says that she heard about it from the news. and i said, ok, well, the gorge is only about 20 miles from your house from what we see. and she quickly said, no, i live at least an hour. i don't live near any gorge. andrea canning (voiceover): he sensed krystal was hiding something. if you had nothing to do with this, why are you distancing yourself from a gorge? what did any of that make any difference? and so i asked again, you had no relationship with kelsey? you didn't know who she was? have you ever met her? and it's absolutely not, no. andrea canning (voiceover): the more they talked, the more suspicious he became. her story was not solid, to start out with. and then it got worse as we went on. andrea canning (voiceover): the investigators wondered what krystal might be covering up. she initially said that she didn't know patrick, but when confronted with, well, we saw your phone number in his phone, at that point, well, we have a business relationship.

and she said she had last talked to patrick a month or a month and a half ago. she couldn't be sure. andrea canning (voiceover): the agent asked if krystal had seen patrick in person. she said, well, they texted each other happy thanksgiving on thanksgiving. and krystal decided that she would drive down from twin falls. andrea canning (voiceover): krystal told agent grusing she made the trip because a few months prior she and patrick had bought a horse together, and krystal wanted patrick to buy her out. they both paid $4,000, and krystal decided she wanted to use that $4,000 to find a new home. andrea canning (voiceover): but when she arrived in colorado, patrick wasn't available. so she said she went and slept at a gas station until he was ready to meet her. andrea canning (voiceover): she told the agent that in the early afternoon, she finally met up with patrick to talk business. they talked about her selling her half of the horse. he said it's not a good time because he hurt his back. so at 5:00, she gets back in her car,

and she drives 13 hours back home. andrea canning (voiceover): grusing put himself in that situation. something about her story didn't add up. i would be very upset that i drove 13 hours, he spends four hours with me, and i have to drive 13 back. i said, weren't you upset about that? oh, absolutely not. i was just happy to see patrick, and he sent a thank you note, a thank you text, and everything's good between us. andrea canning (voiceover): the agent wondered if krystal's relationship with patrick was more than just professional. i said, ok, do you have a personal relationship with patrick? absolutely not. and i said, ok. andrea canning (voiceover): investigators had also gathered cell phone data showing not just calls and texts but locations too. we knew that there was a lot of communication between krystal and patrick. and we also knew that kelsey's phone may have been also with krystal. do you confront krystal with-- we do. andrea canning: --with what you know now? we do. and i say, you traveled the same time

basically that kelsey's phone winds up in that gorge. i'm just having a hard time figuring out-- i said, did patrick ever get in your car? maybe he dropped the phone in your car. trying to give her a reason about this phone. and she said that's highly unlikely. andrea canning (voiceover): it looked like krystal had taken kelsey's phone to idaho. but why? the investigator pulled his net tighter. i said, are your texts, krystal, between you and patrick only dealing with horses? what are they? and she goes, they're only dealing with horses. i said, good. would you mind if we verified that on your phone? and she said no. so at this point, she felt uncomfortable, wanted to end the interview. and that's about where we stopped. andrea canning (voiceover): by the time she finished her call with the fbi agent, krystal was the focus of the investigation. investigators knew they had to confront her in person. because she lied and because we could refute those lies easily. andrea canning (voiceover): they traveled to idaho, we meet first with the police department there, twin falls police.

we meet with fbi. we have a big briefing that evening. we talk about the case. there's a lot of uncertainty right now, but one thing is certain is that krystal lied on a lot of different things by then. and so it was enough for us to draft an affidavit, get a warrant for her house. so the fbi, myself, and twin falls police department go up to krystal's door, and we knock on the door, and she comes to the door. and we introduce ourselves and say we want to talk to her, and krystal voluntarily says, yeah, come on in. we step inside and talk to her at the couch as police officers are around and say, we have a search warrant here. and i say i'd like to talk to you again. i'm the one that talked to you on the phone. andrea canning (voiceover): as they stood in krystal's home, the investigators realized they had leverage. i still remember her daughter with huge eyes looking to see what's going on. she was such a family person. she was a charge nurse, head nurse there, small town, nice house. she had so much to lose by lying.

and i tell her those things. you have a lot to lose. we know you lied. how is she reacting to this? she's just sitting there very attentive, not saying much, shaking her head, agreeing. and at that point, we just say to her, we know you have a story to provide. and we want to hear your story. andrea canning (voiceover): in the end, krystal decided to get herself a lawyer, and the investigators left. is krystal realizing she's in a whole lot of trouble? yes. andrea canning (voiceover): krystal told friends about her situation, and it wasn't long before word got out. you get word that the police have zeroed in on a woman in idaho who may have knowledge about what happened to kelsey. this is a big moment in this case. mm-hmm. what are you learning? we learned about her taking the phone and transporting the phone, and it finally clicked. oh, that makes sense why it's in idaho. and so the first question is why?

why would you be involved in this? andrea canning (voiceover): soon, krystal met again with investigators. with her new lawyer present, it was confession time. coming up-- this is a very important interrogation. yes. yes. andrea canning (voiceover): krystal and patrick. she craved his approval. she craved his approval. she talked about that. patrick had some sort of hold on her that it's rare to see it out there. andrea canning (voiceover): love and secrets. she learns that patrick has a daughter, and she's dumbfounded by the whole thing. krystal was incensed that patrick had a baby that he didn't tell her about. andrea canning (voiceover): when "dateline" continues. why just give a gift, when

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we knew that there was some information that she was going to share with us. we didn't know the exact specifics. this is a very important interrogation. yes. yes. andrea canning (voiceover): and that gave krystal some leverage. before she talked, krystal told them she wanted to make a deal with the local district attorney. before her statement, we didn't know anything. andrea canning (voiceover): jennifer viehman is one of the prosecutors who got the case. she had to provide a full and complete statement about what happened. tell us everything, tell the truth, and come back and testify when it's needed. andrea canning (voiceover): krystal promised to do all that. and in return, prosecutors offered a plea deal, a charge carrying a maximum sentence of three years in prison. did you go into it knowing that it might be unpopular? i don't know that we did. i think we didn't know the extent of how vital she was going to be to the entire story about what happened to kelsey berreth.

andrea canning (voiceover): but they were about to find out. plea deal in place, krystal started to spill. first of all, she confessed her relationship with patrick frazee was about a lot more than buying horses. and this has been an ongoing, on again, off again relationship since 2006. andrea canning (voiceover): krystal said she first met patrick at a dance when she was 20, that he was her first true love, and she fell hard. obsessed with him? twitterpated i think was her term. what was that? twitterpated. that was the term she used. what does that mean? boy, he's like a-- she's just pittertated seeing him. the world's all great. here i am. this is rico suave walking in here. handsome guy, she says. she says to us that he appreciated her. hey, it's nice to have you out here with me herding cattle and fixing fence. she craved his approved. she craved his approval. she talked about that. she truly felt at times that he approved her, and approved

her to be in his life. he seemed to have a real power over women. i think that the women that he went after shared that same lifestyle he did, though. yeah, they liked the cowboy life, ranching lifestyle. andrea canning (voiceover): as smitten as krystal was with patrick, he didn't reciprocate. they fell out of touch. she got married and had two children. but krystal said she never forgot her first true love. in 2015, she rekindled her relationship with patrick, and they started an affair. she got pregnant by him and ended the pregnancy after she says he got angry at the news. after another pause in their relationship, krystal reconnected with him when she made a trip to colorado in 2018 after she was divorced. she wanted to be with patrick. she wanted him to totally have love for her. it's not even like she lived down the street. she's driving 13 hours each time to do this one way. patrick had some sort of hold on her

that it's rare to see it out there. andrea canning (voiceover): but patrick had a secret. krystal had no idea he was engaged and had a new baby. krystal did not know about kaylee, did not know about kelsey. so there's no mention at all of kelsey or kaylee. andrea canning (voiceover): that all changed a couple of months later. fast forward to june of 2018, when krystal is having breakfast with some friends, she learns that patrick has a daughter. and she's dumbfounded by the whole thing, but she plays it off like wow. didn't know anything about it, and no big deal. andrea canning (voiceover): but about three months before kelsey went missing, krystal led on to patrick that she knew. and she simply tells him, i know about the baby. i know about kaylee. you don't have to tell me anything about it if you don't want to, but you've got to know that i know about her. at first krystal was incensed that patrick had a baby that he didn't tell her about. and then she came around to started giving him

baby toys and baby clothes. and she saw what a good dad he is, and they talked about the baby. andrea canning (voiceover): she said that's when patrick confided to her that his fiancee was a deeply troubled woman. he tells krystal kelsey has got all these problems. she's this alcoholic. she's a bad mother. she beats the baby. he started telling krystal that kelsey was an abusive mom, that he had people watching kelsey, and that he was concerned that kelsey was going to hurt the baby if not worse. andrea canning (voiceover): krystal claims she told patrick to report kelsey to the authorities. she said that patrick said he did go to the police, but that kelsey's family is influential, and the police won't do anything. he's filed complaints with department of human services over the abuse, has gone to the hospital with her, has tried to file police reports, but nobody will take him seriously. andrea canning (voiceover): krystal said patrick seemed beside himself. you know, i can't trust her.

she's a drunk. she's not working. she's not doing anything. she would tell us in the interview, no, i was trying to protect the baby. i didn't want her to hurt the baby. so that's how this whole plan hatches, if you will, with krystal killing kelsey to get rid of her to protect kaylee. andrea canning (voiceover): coming up-- she says i can get some valium and some ambien. maybe i can get those things and stir it in. andrea canning (voiceover): poison coffee? a deadly plot to kill. she goes and buys a caramel macchiato from starbucks. and then she goes up to kelsey's door and knocks on the door. andrea canning (voiceover): some terrifying turns lie ahead. andrea canning (voiceover): when "dateline" continues. there he is. wherever i go they always ask “where's waldo?” ah, you found me. never “who's waldo?” sometimes it takes someone who really knows you to make you feel seen.

gifts that say i get you. etsy has it. ♪ ♪ have you always had trouble with your weight? same. discover the power of wegovy®. with wegovy®, i lost 35 pounds. and some lost over 46 pounds. and i'm keeping the weight off. i'm reducing my risk. wegovy® is the only weight-management medicine proven to reduce risk of major cardiovascular events such as death, heart attack, or stroke in adults with known heart disease and obesity. don't use wegovy® with semaglutide or glp-1 medicines, or in children under 12. don't take if you or your family had mtc, men 2, or if allergic to it. tell your prescriber if you are breastfeeding, pregnant, or plan to be. stop taking and get medical help right away if you get a lump or swelling in your neck, severe stomach pain, or any of these allergic reactions. serious side effects may include pancreas inflammation and gallbladder problems. call your prescriber if you have any of these symptoms. wegovy® may cause low blood sugar in people with diabetes,

especially if you take medicines to treat diabetes. call your prescriber about vision changes, if you feel your heart racing while at rest, or if you have mental changes. depression or thoughts of suicide may occur. common side effects include nausea, vomiting, diarrhea, constipation, stomach pain, flu, or upset, headache, feeling tired, dizzy, or bloated, gas, and heartburn. some side effects lead to dehydration, which may cause kidney problems. with wegovy®,... ...i'm losing weight,... ...i'm keeping it off,... ...and i'm lowering my cv risk. check your coverage before talking to your prescriber about wegovy®. ying] andrea canning (voiceover): krystal lee kenney was sitting face-to-face with investigators about to make an extraordinary confession.