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.

i think that she knew that we had plenty of evidence against her. and i think that she was smart enough to realize that i can't hide this anymore. andrea canning (voiceover): and this time, it was about so much more than a longtime love affair with patrick frazee. it's like every turn in this case, you're getting a new clue. correct. andrea canning (voiceover): krystal told them it all began in the summer of 2018, when she became convinced that kelsey berreth was unstable, cruel, and a danger to her daughter. she said she was determined to help patrick. so in september, she traveled to colorado, and together, they hatched a plan to get rid of kelsey. they talk about how people can die from overdosing on drugs and whatnot. andrea canning (voiceover): their plan? krystal, the nurse, would use prescription drugs to poison kelsey's coffee. she says, i can get some valium and some ambien.

maybe i can get those things and stir it in. andrea canning (voiceover): krystal went to starbucks and bought a caramel macchiato for kelsey. investigator 1: that's her favorite coffee drink. so that's what krystal does. she goes and buys a caramel macchiato from starbucks and parks in a little alleyway. investigator 2: and then she goes up to kelsey's door and knocks on the door. she introduces herself as cassie johnson. she already has an alias. she goes, i'm new to the neighborhood, and you put my dog back in the yard. i just wanted to thank you with this coffee. kelsey takes the coffee, but says, i didn't help with your dog. she gives-- krystal gives kelsey her phone number and says, i'd love to have a play date with you, and i have a nephew. and kelsey's like, my daughter is only 10 months old. i don't think we're going to do a play date. andrea canning (voiceover): krystal left, but kelsey didn't die. patrick calls and says, what happened?

he was very angry. he said much angrier words than that. and she says, what are you talking about? he said, she's fine. did you not poison the coffee? and she says, well, maybe she didn't drink it. andrea canning (voiceover): krystal said a guilt trip followed. and so he said, if you're going to let her kill the baby, then that's on you. but that wasn't the end of it. no, there was a second attempt. andrea canning (voiceover): this time, krystal said the plan involved beating kelsey with a metal pipe. investigator 2: he hands her a metal pipe and says, this is not that hard. when she comes out of the house, you hit her in the back of the head so there's not a lot of blood. she's to beat her and put her in a dumpster and push it down the road. krystal takes the metal pipe. she drives to kelsey's place. she tells us that she parks the car. inevstigator 1: she's getting out of her car at kelsey's place with the pipe, and she hears a dog bark. and she gets scared and jumps back in the car and goes and takes a nap at the conoco. investigator 2: and then patrick calls her, and she says, i'm not the right person to do this.

and then again, he goes, maybe you don't love the baby. but this still isn't the end of it. no. andrea canning (voiceover): krystal told them a third murder plot took shape. when kelsey returned to her condo after handing over kaylee to patrick, krystal was supposed to ambush her. the third attempt i can, unfortunately, still see in my brain from krystal describing it so well, because he tells her to use a baseball bat and, quote, "just go to swinging." so krystal takes an aluminum bat from her house in twin falls. she drives and she goes and sits in kelsey's front yard with a bat in her hand, waiting for kelsey to come home from a baby exchange. and she gets out of her car, and she's sitting on a planter, sees a police car drive by, hears some people, and again, leaves. this whole thing is crazy. yeah. just a picture, a head nurse sitting with a baseball bat, waiting to hit someone in the back of the head. i just still have that image in my mind.

it's bizarre. andrea canning (voiceover): she said patrick had the same angry reaction after she failed on the third attempt. he gave her a litany of reasons of why she failed, putting more guilt on her. andrea canning (voiceover): krystal claims she acted only because patrick forced her to. it was patrick who devised the three schemes to murder kelsey. and she told the investigators she tried to push back. she claims she asked patrick if he wanted to kill kelsey so badly, why didn't he do it himself? she asked, well, why aren't you taking care of this? and he said, are you kidding? everybody would know it's me if something happens to her. andrea canning (voiceover): she said patrick countered with threats against her and even her children. investigator 2: she said she was scared of patrick. if she didn't do it, if patrick's willing to kill kelsey, what would happen to krystal? andrea canning (voiceover): when the outlandish story filtered down to kelsey's family, they, too, were dumbfounded. the story is so crazy when you think about krystal

driving to woodland park, and first, it's going to be, she shows up at the door with coffee. then it's a lead pipe. then it's a baseball bat. yeah. how do you wrap your head around that? i don't think we can. no. i'll never be able to understand it. andrea canning (voiceover): investigators believed they had an inkling. investigator 2: she was madly in love with patrick, and that overruled all her common sense and her judgment. andrea canning (voiceover): even so, the fbi agent believed krystal was still responsible. investigator 2: each of us have that choice, whether we decide, do i have to do this? andrea canning (voiceover): but according to krystal, she didn't have a choice. coming up. the call basically is, you need to come now. you have a mess to clean up. andrea canning: does he explain what the mess is? no. andrea canning (voiceover): a horrifying discovery at kelsey's condo.

what does she say that she saw? inevstigator 1: she just walks into this house. in her own words, as soon as she opens the door, it was horrific. 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. our unique gel flex grid draws away heat, helping you fall asleep faster. it relieves pressure for less "ow", and more "ahh".

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there's hope for our little girl to survive. narrator: let's cure childhood cancer together. please donate now. [music playing] mr. clean magic eraser... wow - where has this been my entire life? having to clean with multiple products is a hassle. trying to figure out okay - what am i going to use on the shower, what am i going to use on the bathtub? i don't have to think about that. with magic eraser... i use it on everyday messes. i even use it on things that i think are impossible to clean. you just add water, and then i'm good to go. i can go from the countertop, to the stove, to the microwave, and just use one magic eraser. if you're a mom, you need mr. clean magic eraser in your life. it gets the job done. krystal lee kenney had given investigators the incredible account of how, three times, she had planned to kill kelsey berreth. as bad as that all sounded, it was about to get even worse.

she told them on thanksgiving day, while at home in idaho with her family, her phone lit up with a message from patrick. she waits until late in the day to finally call him. and then the call basically is, you need to come now. you have a mess to clean up. andrea canning: does he explain what the mess is? no. no. andrea canning (voiceover): the following day, krystal said she continued to follow patrick's orders, just as she'd been doing all along. she got ready. she brings supplies, cleaning supplies. he asks her to bring those supplies? he doesn't specifically ask her to bring supplies. he just says, come prepared. andrea canning (voiceover): krystal gathered what she thought she'd need. she brought a coverall outfit that they would wear at the hospital to prevent bloodborne pathogens and blood staining their uniforms, booties, a hairnet, and a box of gloves,

along with trash bags and some bleach. this sounds like it's out of an episode of "dexter." yeah, that's a good analogy. yes. so she thinks that i might be going to clean up a crime scene. she doesn't really say it. i mean, you don't bring bleach, and-- that's not what you're taking on vacation. andrea canning (voiceover): krystal borrowed a friend's volkswagen passat and once again drove the 13 hours to colorado. investigator 2: i don't think she was certain that kelsey was dead because he had told her, i can't be the one to do this. and so he had had her try to do it for three times. then why would he go ahead and do it now? so she was very conflicted in her drive down there. andrea canning (voiceover): but she told the investigators, when she got to colorado, patrick removed all doubt. she said he confessed he'd killed kelsey and had hidden her body. she said patrick told her where to find keys to kelsey's condo. she picked them up and went inside. what does she say that she saw? in her own words, as soon as she opens the door,

it was horrific. andrea canning (voiceover): and she didn't just tell the investigators. they brought her to kelsey's condo, so she could show them on video. andrea canning (voiceover): stepping inside the condo again, this time, dressed in a law enforcement hoodie and cap, krystal was transformed into the kind of witness investigators could only hope for, as she led a tour of the crime scene with agent slater. did she see a body? no. she doesn't see the body at that point. she doesn't know where kelsey is. she just walks into this house that she, again, says is just a horrific scene. andrea canning (voiceover): and then, she said, she got to work, hanging towels over the kitchen window

so she couldn't be seen by passersby. andrea canning (voiceover): she used a broom handle to show how high the blood spatter was on the walls. at times, she seemed emotional, apparently fighting back tears. andrea canning (voiceover): she told investigators among the things she discovered as she cleaned was a tooth.

andrea canning (voiceover): and as she cleaned, she said patrick called with more instructions. inevstigator 1: specifically saying, make sure you pick up this stuff, that stuff. he tells her to wash stuff if she can. she can't do that. so she's got trash bags, her own trash bags. and she used trash bags of kelsey's to remove debris that's soaked in blood or has blood on it that they can't clean. some of kaylee's stuffed animals had blood on them. drapes, the drapes, several other items. andrea canning (voiceover): krystal said the cleanup took about four hours. then she drove to sonic and, captured on security camera, bought food for herself, for patrick and the baby. her day wasn't nearly done. there was much more dirty work ahead. coming up.

andrea canning (voiceover): krystal leads investigators to another crime scene, more disturbing than the last. she kept wanting to go. she kept asking to go. he's like, no. we started this. we're going to finish it. andrea canning (voiceover): when "dateline" continues. ♪♪ imagine checking your own heart with medical precision from anywhere. introducing kardiamobile 6l, the fda-cleared ekg that provides six-times more heart data than any smartwatch. and it detects three of the most common arrhythmias in just 30 seconds, including atrial fibrillation, bradycardia and tachycardia. check your heart with the most advanced personal ekg outside the hospital. our $99 black friday deal is here now, our lowest price of the year. my moderate to severe crohn's symptoms kept me out of the picture. now i have skyrizi. ♪ i've got places to go and i'm feeling free. ♪ ♪ control of my crohn's means everything to me. ♪

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is a beautiful thing. krystal lee kenny's story was stranger than fiction. andrea canning (voiceover): the nurse from idaho

had turned on her longtime boyfriend, patrick frazee, telling investigators she'd cleaned the bloody condo after patrick murdered kelsey there. andrea canning (voiceover): now she would tell them what she and patrick did with kelsey's body. she said he'd hidden it inside a black plastic tote box on a stack of hay bales at a local ranch. they both drive out to the nash ranch and recover kelsey's remains, bring it back to patrick's place, where they burned the body. andrea canning (voiceover): krystal took investigators on another video tour, this one of patrick's ranch where she and patrick took the tote box. andrea canning (voiceover): krystal said she and patrick placed the box into a makeshift burn pit. at which time he uses a gas can, opens up the lid of the tote, and pours gasoline and oil inside, and then ignites the fire.

andrea canning (voiceover): she said the fire raged with vicious intensity, the flames leaping as high as some of the trees. krystal gathered the trash bags of bloody items she'd taken from the condo. and they throw the trash bags in. so they're very evidence conscious. andrea canning (voiceover): even some of kelsey's most precious books were tossed into the flames. she said that she stood there for hours, as patrick was churning the fire and making it burn. andrea canning (voiceover): even so,

not everything burned. investigators' most chilling discovery at the burn site was this-- a tooth fragment. as she stood with patrick watching the flames, krystal said she didn't want to be there. she kept wanting to go. she kept asking to go. he's like, nope. we started this. we're going to finish it. so obviously, he's bringing her in as partner in the homicide. andrea canning (voiceover): and their partnership continued. patrick directed krystal to take some of kelsey's belongings with her to idaho and help create a false trail of evidence. andrea canning: what does he tell her to do with these items? initially, according to krystal, he said, well, you're going to take the gun. you're going to get rid of it. you're going to get rid of her phone. you're going to get rid of the purse. andrea canning (voiceover): krystal confessed she took kelsey's phone and turned it on as she drove home. that's why kelsey's phone pinged near the gorge in idaho. she also sent text messages, like the one saying, "do you even love me?" to make it appear kelsey

was in some kind of distress. then she burned the phone. andrea canning (voiceover): so that was krystal's story. driven by love and fear, she cleaned the crime scene, helped burn kelsey's body, and destroyed crucial evidence. but krystal wanted to make one thing clear. she said it was patrick who murdered kelsey. and to prove she was telling the truth, she pointed to more evidence that would turn the tables on patrick because as thoroughly as she mopped and wiped kelsey's condo, she told investigators she deliberately left spots of blood for them to find. andrea canning (voiceover): after about

12 hours of questioning, the investigators were astonished. krystal had drawn in vivid detail the anatomy of kelsey berreth's murder. do you believe that patrick frazee was really the mastermind? that he was the puppeteer-- yes. andrea canning: --with krystal? yes. patrick is the one who is manipulating her the whole time. patrick's the one that wanted kelsey killed. patrick is the one who actually killed kelsey. i believe krystal was a fool. i believe patrick was the murderer. andrea canning (voiceover): about a month after that thanksgiving day when kelsey went missing, patrick frazee was arrested and charged with first-degree murder, solicitation to murder, and tampering with a deceased body. andrea canning: is this a big sigh of relief, knowing that there had been an arrest? yes, it-- relief because there was hope that he wasn't going to get away with it. at the same time, sadness that her death

was a little more real. was this kind of that moment that it really hits you? it's starting to hit. that she really isn't coming home. andrea canning (voiceover): in november, almost one year after kelsey went missing, patrick frazee would go on trial for her murder. and a jury would decide if krystal was telling the truth or if she was lying. coming up. andrea canning: did you feel like anything was weak in your case going in? krystal lee, i think, would probably be the biggest concern that we would have. the whole case rested on her shoulders. the concern was, is she believable? andrea canning (voiceover): what really happened the day of the murder? i'll bet he thought that would knock her out on the first blow, and it didn't. he is beating her and beating her and beating her. andrea canning (voiceover): powerful new details from the prosecutor's star witness.

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i'm jessica layton with the hour's top stories. president biden was at a fire house in nantucket where he was asked about president-elect donald trump's plans to impose tariffs on the other hand mexico and canada. >> i hope he reconsiders. >> and it will be a busy holiday travel. the tsa says it expects to screen more than 3 million passengers on sunday alone. and now back to dateline. in november 2019, here at the old county courthouse in the mountains of colorado, after months of pretrial hearings, one of which was videotaped, patrick frazee went on trial for the murder

of kelsey berreth. this one probably had more twists and turns than almost any case i've ever seen. this one had more emotion to it than almost any case i've seen. andrea canning (voiceover): dan may was the district attorney. he led the prosecution team with jennifer viehman and beth reed. they'd assembled an arsenal of evidence against patrick and dozens of witnesses, including their star witness, krystal lee kenney, whom they recorded on video. andrea canning: did you feel like anything was weak in your case going in that you had to worry about? krystal lee, i think, would probably be the biggest concern that we would have. the whole case rested on her shoulders and phone records. so i think the concern was, is she believable? andrea canning (voiceover): they thought they could make krystal credible by explaining how patrick manipulated her. for example, krystal said patrick told her kelsey was abusing their baby, and he'd reported her to police. in fact, there was no police report.

it was all a lie. he's claiming she was an alcoholic, an abusive mother. that she wasn't showing up for work. all of that is untrue. andrea canning (voiceover): then they would try to prove krystal's story with hard evidence, like forensics and digital records, starting with kelsey's condo. police photos showed smears where krystal said she wiped away blood from furniture and appliances. and it kind of gives you some inkling because you're seeing all kinds of blood in the floorboards of her wooden floor. andrea canning (voiceover): a dna expert testified it was a match to kelsey's blood. cbi agent greg slater took the stand. krystal claims that she left some blood on the baby gate and on the fireplace. did you believe her? well, i can't doubt her because the evidence speaks for itself. it does show that that's kelsey's blood. and without her telling us that, we would never have known it was there. andrea canning (voiceover): krystal also told law enforcement, later that day, she

met patrick at a gas station. when she tells us we met at the conoco station in florissant, let's go to the conoco station and let's see if we can find video. lo and behold, we find video. andrea canning (voiceover): in the video, krystal can be seen driving up in the black volkswagen. 20 minutes later, patrick pulled up to a pump in his red pickup truck. he filled a canister with gasoline, which krystal told investigators he used to burn kelsey's body. a gas canister just like the one in the video was found on patrick's property. andrea canning: things are matching up. things are matching up. andrea canning (voiceover): but things weren't matching up for patrick's thanksgiving day alibi. his story consistently was, on the 22nd, i picked up kaylee around noon from kelsey's apartment, and i left. and that's the last time i saw her. and consistently, he says, i never went into kelsey's house. andrea canning (voiceover): his story was that he was tending to his cows

at the time kelsey was believed to have been murdered. he puts himself out with the cattle that afternoon, miles away from woodland park, when the murder happened. andrea canning (voiceover): but prosecutors presented images that showed patrick was lying. a security camera caught patrick's truck passing by a furniture store near kelsey's condo around the time of the murder. and shots from a neighbor's security camera captured patrick at kelsey's home multiple times also during that period. he is walking in and out because we have the photos from the next door neighbor from that scene carrying kaylee several times, as he's going in and out of that scene. andrea canning (voiceover): in one frame, kelsey is visible, her hair tied in a neat bun and carrying a poinsettia plant, the last image of her alive. as the prosecutors continue to press their case, they told the jury patrick's cell phone also placed him near kelsey's condo at the time she was murdered. patrick made two phone calls around 4:30

on the afternoon of the 22nd, when he was supposedly not even there. and those phone calls are being made on the tower that served-- the cell phone tower that services kelsey berreth's house. andrea canning (voiceover): cell phone records from the following day exposed more of patrick frazee's lies. consistently, all day on the 23rd, kelsey berreth's cell phone and patrick frazee's cell phone were together. and remember, he said he hasn't even seen her. andrea canning (voiceover): further cell phone analysis bore out krystal's story that patrick had given her kelsey's phone. and it's only when krystal lee comes to town, and patrick frazee provides krystal lee with kelsey's cell phone, do you see the patterns then change, and kelsey's cell phone travels along with krystal lee back to idaho, where she ultimately destroys it on november 25. when she's telling us that, yes, i turned kelsey's phone off; i turned it on at this point on my trip back; i turned it on at this point on my trip back;

i sent a text message at this point; i sent-- or patrick called me at this point, that matches all the information that we have. andrea canning (voiceover): as for where krystal said patrick stored kelsey's body after murdering her, a cadaver dog trained to sit when it scented human death did exactly that. krystal's walkthrough of patrick's ranch was also played in court. in graphic detail, she testified how they burned kelsey's body. did that yield any clues that you felt were really important? krystal goes straight to where that burn area was and says, this is where she was burned. and they, essentially, excavate that area and remove all the dirt. and there you see what i would almost describe as a burn scar. there's melted plastic in the ground. andrea canning (voiceover): as for the murder itself, the courtroom fell silent as krystal described what patrick told her about kelsey berreth's horrific last moments.

once inside her condo on thanksgiving day, according to krystal, patrick told kelsey he wanted to play a game with some scented candles. so he comes up with this ploy of smell the candles and tell me which one is which scent on the candles. and then he blindfolds her with one of her own sweaters. so she's now bent over smelling those candles when he pulls the bat out. andrea canning (voiceover): a baseball bat. i'll bet he thought that would knock her out on the first blow, and it didn't. he is beating her and beating her and beating her. the spray-- andrea canning (voiceover): prosecutors played the video of krystal pointing out the blood spatter. all of a sudden, the jury understood these little spots are bat blows to her head. and each time he's pulling the bat back above him, it is throwing spots of blood all the way back into the kitchen as he's coming back down for another blow. the courtroom was getting, sadly, a real visual-- a real visual of what's happening. --of what happened in this condominium. andrea canning (voiceover): a blood spatter expert witness confirmed the worst.

and then i asked him how many times do you think he beat her with that bat, and he said his estimate would be 10 to 15 times or more. andrea canning (voiceover): another sickening moment in the trial came when the prosecution showed the jury the tooth fragment found at the burn site. and krystal added one more heart rending detail she said patrick described to her. the hardest part of the entire time watching krystal testify-- here's the question-- do you know what kelsey's last words were? and in tears, krystal said the words, "please stop." that was-- [sighs] that was the blow that rocked my world again. so to hear that those were the words and that he continued, took my breath away.

i don't know that i'm breathing yet. andrea canning (voiceover): all during the murder, krystal testified, baby kaylee was in the condo. that just tore at everybody. there were times that you saw jurors crying. there were times you saw people in the audience crying. i know we were, at times. andrea canning (voiceover): the prosecution's case was clear. patrick frazee had killed kelsey in the most sadistic manner, torched her body so that her remains would never be found, and then covered it up. at least, that was krystal's story. now the stage was set for patrick's defense team to go after her. coming up. this is a woman who has admitted to covering up a murder. we didn't ask the jury to like her. we just asked them to listen to her. andrea canning (voiceover): would they? i just could not believe that she was persuaded or manipulated.

it's inconceivable. you can get into that position. this one's hard to understand, though. it's totally-- everything about this is hard to understand. 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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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®. the colorado courtroom had heard shocking evidence. patrick frazee had bludgeoned to death his fiancée kelsey berreth and burned her body now it was the defense's turn to try and shred the prosecution's case

by targeting krystal. the more guilty she appeared to a jury, the less guilty patrick might appear. if you believe krystal's story, then the evidence was overwhelming. if you don't buy off on krystal's story, then the evidence is not overwhelming. plain, simple, done. andrea canning (voiceover): patrick frazee's friend, clint cline, attended the trial. the only time krystal finally so-called told the truth was when she was approached by the fbi and the colorado bureau of investigation and told that they had enough on her that she was going to go away for probably the rest of her life. andrea canning (voiceover): he says krystal told her story to investigators only after law enforcement caught her lying. she got honest after she got caught. andrea canning (voiceover): under tough cross-examination, krystal, again, admitted how, three times, she drove 800 miles from idaho to colorado and back with plans to kill kelsey. if krystal was telling the truth,

the defense team said, it was an outrage that she had never once told law enforcement about the murder plans she was part of, not once until she was caught. andrea canning (voiceover): neither did she tell a soul about the pools of blood she had cleaned up, the spattered walls she bleached, the blood soaked evidence she got rid of. patrick's defense pointed out how callous krystal was, laying a false text message trail and taking kelsey's phone to idaho, where she burned it. andrea canning: you sat in court every day. - mm-hmm. - you heard all the evidence. mm-hmm. if patrick frazee didn't kill kelsey, then who did? you can come to your own conclusion on that. you either bought krystal's story or you didn't buy krystal's story. and you didn't. and i didn't. andrea canning (voiceover): krystal's credibility had been the main concern of the prosecution team. this is a woman who's lied before. this is a woman who has admitted

to covering up a murder. she's done a lot of bad things. so it would be easy for the jury to not like krystal lee. sure. and to maybe not trust her. we didn't ask the jury to like her. we just asked them to listen to her and to match up what she says with the other pieces of evidence that we had. andrea canning (voiceover): bob, kristy, and dennis, who want us to use only their first names, sat on the jury, as krystal described how patrick instructed her three times to murder kelsey. some of the things that went through my mind when krystal was testifying was-- i was thinking, she could have stopped this. what were you thinking? right. i just could not believe that she was persuaded or manipulated. she seemed like a very intelligent person. it's inconceivable you can get into that position.

this one's hard to understand, though. it's totally-- everything about this is hard to understand. andrea canning (voiceover): the jurors also blamed krystal for covering up the murder, instead of calling the police. how chilling was it to see the video of krystal in kelsey's condo, doing that walkthrough? i think her saying, you know, she put towels over the kitchen window was probably one of the harder things for me because, you know, that's really-- you know what you're doing. you know you're hiding. that showed me she was complicit. when she walked in that condo, she could have called the police right then. andrea canning (voiceover): to some in court, krystal artfully minimized her own role to make sure all the blame would fall on patrick frazee. do you think krystal told the whole story? um, no. i just didn't buy that. i think that she was not completely honest with her how complicit she was. this is a woman who came-- potentially

came close to killing kelsey herself three times. three times, she came here. coffee, pipe, baseball bat. yeah, she talked about being afraid of him, but then she said after she went into the condo, she said that she didn't believe that he could actually do it. so those two statements didn't match to me. andrea canning (voiceover): the defense argued krystal's story was shaky, and so was some of the prosecution's evidence. they argued the security camera images showing patrick entering and leaving kelsey's condo on thanksgiving day didn't necessarily match the time they were saved to the security system. and that apparently damning tooth fragment? not so fast. were you able to match that tooth to kelsey? no. it's examined by a forensic anthropologist. they could determine that it was female dna, but they couldn't develop a profile. andrea canning (voiceover): so the tooth

evidence wasn't the slam dunk they had hoped for. but as the jurors wrestled with the evidence and krystal's testimony, they weren't prepared for what came next. the trial was about to reach its climax with a new witness who would stun the courtroom. coming up. this particular informant had the letters. and they contained information that only patrick frazee would know. andrea canning (voiceover): from behind prison walls, perhaps the most sinister plot of all. there were threats, very specific threats. andrea canning (voiceover): and the verdict. andrea canning: does your heart start beating really fast? i couldn't breathe. i remember checking my pulse. andrea canning (voiceover): when "dateline" continues. why just give a gift, when

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on a chilly november day, one year to the week after kelsey berreth went missing, after a meticulous investigation from colorado to idaho, and after the damning testimony of his former girlfriend, krystal lee kenney, 33-year-old patrick frazee would soon learn if he would spend the rest of his life behind bars for a monstrous, premeditated murder. i was dreading, like, what if? how is our family going to handle if they say not guilty? there could be one person on that jury who maybe didn't believe he was capable of that. you're right. andrea canning (voiceover): as nervous as kelsey's family

was, as the trial came to a close, there was something they hadn't counted on-- a new witness for the prosecution. right before trial, he calls, actually, for me. andrea canning (voiceover): he was jacob bentley. he'd been housed next to patrick frazee in jail, and they became buddies. after he got out, bentley came forward with a mind blowing story about some notes frazee slipped to him. the substance of those notes, some written on jail napkins, some written on paper, are essentially asking to assist patrick in killing a number of witnesses that are set to testify against him in this trial. andrea canning (voiceover): it was a hit list, with patrick frazee offering to pay bentley for arranging to kill those named. most of the notes came with instructions to "flush them." at the top of patrick's list was krystal lee kenney, followed by her family and friends. they all need to disappear, read one note, at least, until after the trial.

another note instructed bentley to use a gun to make krystal's ex-husband talk, then dump him out in the desert. i think what was shocking in this case was, usually, when we get that information, it's the word of one informant without any corroborating evidence, but this particular informant had the letters. and they were clearly in patrick's handwriting. and they contained information that only patrick frazee would know. andrea canning (voiceover): no one was too high up the food chain for patrick frazee. lead investigator greg slater and even the da himself were on the kill list, and perhaps even more shocking, kelsey's mom, too. there were threats to kill cheryl berreth, very specific threats. the hit list, cheryl was on it-- crazy? crazy. it's just so insane that he has this hit list in jail. it showed his character. it showed his-- his guilt.

andrea canning (voiceover): the jail notes and bentley's testimony stunned the courtroom and seemed to be a big blow to patrick frazee's defense. the prosecution said frazee hadn't only murdered kelsey berreth, he had sought to kill those set to testify against him. we wanted the jury to hear this evidence so they could really understand the mindset we were dealing with in terms of patrick frazee. he's a very troubled person. andrea canning (voiceover): after three hours of deliberation, the jury reached a decision. you walk back into that courtroom to deliver the verdict. are you feeling-- scared to death. [laughs] yeah, i feel the weight of it. oh, yes, definitely. it was hard. it was not-- it was a lot of tension, knowing that her family's out there, his family is out there, he's right there. andrea canning: does your heart start beating really fast? - i couldn't breathe. i was-- - yeah. yeah. our hearts are beating.

i remember checking my pulse. we were all holding hands. holding hands in such anticipation, praying that a fast verdict was a good verdict. andrea canning (voiceover): for kelsey's family, all those prayers were answered. as soon as that first guilty came in-- then we could exhale. [exhales] yeah. that was the first-degree murder charge. yep. and then when they just kept coming, it was-- and then everything else was just icing on the cake. guilty, guilty. yeah. praising god. praising god. yeah, a lot of answered prayer, a lot of hugs, a lot of tears, a lot of relief. yeah. andrea canning (voiceover): the prosecutors welled up, too, seeing kelsey's father, darryl. i heard the verdict, and i got choked up. and then i looked back at darryl, and i was just nodding at him of,

thank you for being with us and going through this and being behind us 100% the whole time. andrea canning (voiceover): amid all the emotion in the courthouse, a swift verdict was followed by a swift sentence. patrick frazee got everything he deserved coming to him-- life sentence plus 156 years. andrea canning (voiceover): about three months went by, and it was a very different set of emotions when krystal lee kenney was sentenced. the judge called her actions cold, calculated, and cruel, but of all the things krystal admitted to in her deal with prosecutors, she pleaded guilty to only one thing-- tampering with evidence by moving kelsey's phone. the judge gave her the maximum sentence-- three years in prison. do i think she should have gotten a lot more time? you betcha. andrea canning (voiceover): but the da laments she may serve a lot less time. it's not unusual for someone to serve maybe 25% of their sentence on a crime, no matter what it is. andrea canning (voiceover): so krystal could end up serving just nine months.

the da said to convict patrick frazee, he was forced into a devil's bargain with krystal. we did a deal with the devil. you called this making a deal with the devil. i did. that was absolutely a deal with the devil, and i'm not proud of it. i'm not telling you it's justice for krystal lee. it's not justice for krystal lee. but it got justice for kelsey in the end. andrea canning (voiceover): in february 2021, an appeals court ruled krystal's term exceeded the maximum allowed for tampering with evidence and reduced her sentence to 18 months. you said something to me that was just really powerful about your feelings toward krystal lee. part of me wants to strangle her. part of me wants to hug her. that's a very complex statement right there. she could have stopped this from happening altogether. and for that, i want to choke her. but she finally fessed up. and for that, i want to hug her and thank her.

for that, we have closure. andrea canning (voiceover): as kelsey's family tried to move on, little kaylee went to live with kelsey's mom and dad. andrea canning: if kaylee watches this someday when she's older, what would you say right now about her mom? her mom loved her. her mom was fearless. her mom loved the lord. and the best thing in the world would be to see her daughter committed to the lord as well. andrea canning (voiceover): the communities where kelsey lived and work also did what they could to ensure she was remembered. the local furniture store placed a memorial bench near kelsey's condo. kelsey's family set up an aviation scholarship,

and even some of the jurors supported it. they are all testaments to the young mother whose life was so cruelly taken, but whose spirit continues to uplift. if kaylee does get to watch this at some point, then it would be her mom telling her, don't back down. dream big. dream big. run hard. soar. go get them. because you've got the support of this family behind you. [theme music] kris jenner: he was crying over the coffin, kissed the coffin. he said, i'm sorry, nic. i'm sorry. and i said oh my god, he did it. he killed her. i just remembered screaming.