ending. >> it's her being on the other side of this with her. because i'd love to have a better relationship with her. we tried to talk with each other and bury once in a while. and it's a thing where she says, i can't believe you can't see it. it's so obvious. he's guilty. and i say, how on earth can you think that? there is no evidence. and, we just go back and forth like that. it's impossible to get around. >> gabriel is a father himself now. with a daughter. his father in prison has met his little girl now. but when we last spoke with gabriel? anna had not. >> we love each other very much. we have a bond as brother and sister. that was very strong as children. and it will always be there. this is a really difficult situation for both of us. we'll get through it. it's all that's left of our perfect family. is the two of us. we can't let that go.

♪ ♪ ♪ >> i'm craig melvin. >> i'm natalie morales. >> this is dateline. >> the night before angelo thought that she hurt somebody messing with the front door of the president, she felt like she was being washed. all the wounds that she had to her body, it was a very angry attacked. >> a nursing student with three children, nobody was busier than angela. >> as soon as class was over she was gone. >> back home? >> yes. >> that's where they found her. >> my girl is not answering the phone. >> the officers could see a lot of blood. >> police thought her boyfriend's behavior seemed odd. >> he gets to the door and sees it kicked in, he doesn't go in. >> people felt that there was something suspicious about that. >> but, he had an alibi.

>> did he try to point the finger at anybody else? >> he did. angela's ex husband. >> the ex had an alibi to. >> he came off as very calm and collected. >> and there was something else missing. >> we got a phone call -- >> until someone found it. >> they asked me if i would be willing to come up there and wear a wire. >> one old friend talking to another. >> this is just my second drink. >> about a secret she was dying to share. >> i think she was almost proud of the whole thing. >> a case where the biggest twist came after the verdict. >> wow! >> that was my response, wow! >> hello and welcome to dateline. working mom angela wilder dreamed of becoming a nurse and was burning the candle at both ends to make it come true. then, angela was murdered. investigators suspected the attack was personal, and just when they thought it was cased

close, turns out it was not. so, they set an elaborate trap hoping to catch a killer. here is keith morrison with prairie confidential. >> it was dark, on the great central plains. moonless, in the early hours that friday the 13th of november. a small light wind shivered along flat deserted streets, and nipped the freezing little teeth of the ruins of autumn in north dakota. was there a muffled sound of a cry, no one heard. not a thing. it's a modest place, modest in a good way. and uncommonly friendly, comparatively speaking, of course. >> it's comfortable. it's a family community. >> north dakota nice, maybe an old fashion phrase but it still fits. >> the people who have been around a long time still greet each other on the street.

>> as they did that chilly morning in november 2015. when parents dropped off their kids at this elementary school, and where later that morning at minot state university department of nursing, professor dine shull wondered why one of her students hadn't shown up for an 11 am exam. >> before wheels started taking the test i said has anybody heard from angela? >> angela was this woman. >> my name is angela wilder i'm a student nurse with -- and i will be investigating your cardiovascular system today. >> she was a sweet little southern girl. always miss diane, yes ma'am, no ma'am. >> i let the doctor know and he will be with you shortly. >> angela wilder was an addition to a nursing student a mother of three, who just days before had revealed to her professor that she was pregnant. >> did you have any advice for her? >> well, we talked about how stressful school is, we talked

about, you know, who are not feeling well and then that's when i just told her yes is expected to come to class but if she couldn't she needed to call and let me know and we would just make other arrangements. >> but that morning? no call. no angela. was she ill? class was over. before one of diane's students dropped a kind of bombshell. >> she said, well, i think it was angela's house where there was police tape around it, a lot of people in hazmat suits. >> and indeed it was angela's house. this little place next to a lutheran church, across the street from that elementary school. it was angela's fiancée home from a night shift who called 9-1-1. >> i just got home, my back door is kicked in, and my girl isn't answering the phone. my sons inside with her and everything. i'm about to go in and see what is going on. >> okay, why don't you just wait for officers. i'll get them over there. >> so, the fiancée stayed

outside. the officers went in. the house was neat, tidy. they found the two-year-old unharmed. they went down the hall looked into the next bedroom, and there she was. very dead. >> i didn't know at the time exactly how many times she had been stout but i knew that it was vicious. >> why not police detective sergeant dave goodman. >> how many eventually did you found out? >> somewhere near 40. >> and there was the fiancée, and you have a crime that looks like a crime of passion. what story did he tell about coming home? >> he reported that he had been at work all night when he arrived home, and found the back door to the residents kicked open, he said that he was obviously concerned about that. >> if that was me, i think i would've rushed in there to see what was going on with my family. >> and i say that to, of course, until you experienced that yourself i guess none of us know how we would react.

>> still, good men's detectives instincts kicked in, so what if some 9-1-1 dispatcher told him to wait, wouldn't innocent, worried parents really do that? it was suspicious. why did angela's fiancée chris stay outside? and, had he really been at work all night as he said he was? they took him downtown to the first of several interviews. where goodman and his partner detective sergeant chris mathias sized him up. his name was chris jackson. how did he present? >> he was calm, he was crying, he was upset. he was mad. >> where was he that night? chris said angela drove him to work at walmart. dropped him off before 11 pm. >> and i kissed her, and i said i love you, sweetheart. drive safe, have a good night. >> angela was nervous, he said, afraid to be left alone. why did he say she was anxious during the night? >> the night before she thought that she had heard somebody

messing at the front door of the residents. she felt like she was being watched. >> so said chris he called, and he texted her repeatedly. but after 2 am, he said, she didn't pick up when he called. >> and he figured she had fallen asleep. >> but no, she wasn't sleeping. but who killed her? and why? when chris first arrived at the police station, they let him make a phone call. it was obvious he had his own suspect in mind. >> richie is probably the piece of [bleep] who did it, god i hope [bleep] they [bleep]. >> richie, who was he? >> a pregnant young mom dead, her toddler nearby. an investigation about to lead it to even darker discoveries. >> coming up! >> her fingernails were broken off. >> detectives talk to richie. >> what happened to your face? >> where? right here?

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that's “treat t-e-d dot com." >> the wind on the prairie is a fickle thing. like people sometimes are. is that why angela wilder's fiancée chris was so angry? >> richie is probably the [bleep] piece of [bleep] who did it. >> there was a history to this, long before the november morning in 2015 and far away from minot, north dakota, in alabama, angela met richie at church. they were the best of friends as kids, after angela had a baby as a teenager, it was richie who scooped her up, married her, adopted her little girl and before long they had a boy of their own. all witnessed by angela's sister, krystal.

>> she tends to date guys who were funny, gentle that were intelligent and really ritchie was all of those things. >> richie was in the air force, that's why they moved to minot, the airbase there. and that's where angela pursued her dream of becoming a nurse. >> she took classes whenever she could, she could have up to two jobs at a time, still attend her classes and take care of her kids. >> why did richie and angela's lifelong bond rupture? who really knows. but there's curdled into a corrosive, toxic anger. richie was court marshaled, convicted of domestic abuse, drummed out of the military. a divorce followed. but then, like the prairie wind, their affection shifted. richie remarried, small town north dakota girl called cindy who had moved to minot and became a kindergarten teacher. and soon cindy and richie had a

baby of their own. and angela got engaged to chris and she had another baby to. and these two new families all settled down again, or they might have, except for rich in angeles nasty custody battle. >> she said he was fighting me all the time, it's been really hard with the kids. >> it was bad between those two, scary. >> i got a frantic phone call from her one morning and i was like calm down, what is going on? and she said it's richie. i just woke up, came out of my bedroom, went into my living room and he is sitting on my couch, and looked at me and said c i told you i can get to you if i wanted to. >> is that what happened here, an angry ex-husbands revenge? >> hello. are you richie? >> yes, ma'am. >> a few hours after the murder, pat her talking to angela's fiancée, chris, detectives goodman and mathias called routine for a top. but he didn't seem to know what was going on. >> and i'll tell you, angela's

dead. >>, oh really? >> yes. >> did he seem upset by what had happened? >> he didn't, no. >> that strike you as odd? >> it did, yes. >> he would want to have some reaction, the mother of his child. >> that's what we would expect. >> their questions got tougher. >> did you kill her? >> no. >> no? >> no. i'm 100 percent truthful. >> did he have an alibi? >> he said he did. >> did you work last night? >> from 7 to 11 yes, ma'am. >> where do you go after you left work? >> straight home. >> can anybody tell us what time you got home? >> yes, cindy. >> that is, his new wife, the kindergarten teacher. she confirmed that when she woke up for the baby during the night, richie was beside her in bed. >> he was home, the three times that i was up. >> if that's the truth, cindy, that's fine, i mean maybe he was home during those three times that you were up during the night. is that possible, sure. what do you know about this?

>> i don't know anything. >> so, maybe the detectives could get some evidence from the crime scene techs who told them angela had tried to fight off her killer. >> her fingernails were broken off, it appeared that the assault actually occurred while she was in bed and ended up on the floor next to the bed. >> your dna is not gonna show up anywhere on her? >> no, it's not possible. i wasn't even there. >> gonna show up under her fingernails? >> no. >> but, they couldn't help but see the scratch. >> what happened to your face? >> where? right here? >> you have a scratch on your face. >> he had a story that he had been wrestling with his younger son and that he had gotten scratched. >> police also in putting two cars driven by richie and his wife and in one, of small spot of something dark brown. on the inside of the door. >> visible to the naked eye but not obvious that it was blood.

but enough suspicion for them to go ahead and collect that. >> and when the lab called back a few weeks later with news? well, it was quite a moment. >> we were excited, we couldn't believe it. >> that spot in rishi's vehicle, it was indeed blood. angela's blood. >> we ended up standing up during that conference call and hugging, we were so excited to get that news. >> but, no arrests, not yet. not until more results came in, ramah tyrrell found under angeles fingernails. >> about a week later we heard back on the fingernail clippings and that came back to richie and we said okay, let's go get him. >> and so they did. >> we found him at a local gym in town i said i have an arrest warrant for you for the murder of angela. >> richie junior was charged with murder, he soon pleaded not guilty. >> we offered an interview to him, and he didn't want to talk.

he went to jail. >> then, a couple of months later. >> hi richard, do you remember us? detective mateo, detective goodman. >> richie asked to see the detectives again. because he was finally ready to tell the truth. and blow the whistle on his accomplice. wait? accomplice? >> coming up! >> drove her off the bed and started stabbing her. >> richie's story and why he says he kept it secret. we >> she's in my family. >> when dateline continues. when dateline continues

>> he drove her off the bed, and kept stabbing her. >> richie wilder junior had a new story. a new and shocking story that put him and his ex wife angela 's bedroom the night she was stabbed to death. but did he kill her? oh no, richie said. so who did? richie was finally ready to reveal the secret. to point the finger at the very man who first accused him, the killer? was angela's fiancée, chris. but to start from the beginning. richie said chris had discovered angela was cheating on him while he worked his night shift at walmart, he wanted to catch her in the act,

prove she was an unfit mother so they, chris and richie, would win custody of their respective kids. sounded good to richie. so, friday, november 13th, 2:15 a.m.. >> richie told us that he picked chris up from walmart, that he drove him to the house, they were supposed to catch her in the act of cheating on chris. >> when we opened the door, it looked like there were two people in the bed, you know? and of course we pulled the cover, and i noticed that it wasn't a person, it was a blanket. >> chris didn't understand that, said richie, because he said he went crazy in started stabbing her. >> i went over and i touched her neck to fill her pulse because she was kind of like -- and i touched her pulse and she leaned up and like scratch the mess out of my face, i grabbed her hands, she just said i love you. >> that was why his face was scratched said richie and his dna was under her fingernails.

anyway, afterwards which he said he drove chris back to work and drop them off at walmart. >> and where the chris ride? >> in the passenger seat. the >> same side of the car where the spot of blood was found. angela's blood. >> when we first interviewed you, richie, why did you not tell us this? >> well, one because he kept threatening my family. he said if you tell anybody, i will kill your wife, killed your little one. >> it was quite a story. the only problem? walmart where chris worked has cameras everywhere. and it just so happened that detective goodman had spent most of the night before the interview with richie watching videos. videos that kept witness of every movement, every minute. if chris left the store to kill his wife, then goodman would didn't find him on any video shot between 2:15 am and 3 am. >> every 5 to 10 minutes, we

have him there at the store. we have him in the entryway sitting down eating his lunch during the time that rishi is telling us he is stabbing angela. >> in fact the only time chris briefly left the store, his schedule breaks. >> so he simply couldn't have taken part in such a game with ritchie? >> he couldn't have, and we knew that. >> goodman held back as richie spun his tail. and then -- >> chris did not leave walmart during those times. >> i know he didn't, i picked him up. >> i know he didn't because i watched him on video. >> and minutes later, rishi wilder, his bluff called, simply folded. but >> you can stop anytime you want. >> i want to stop. >> okay. >> when rishi wilder's murder trial started a few months later. >> the evidence shows that -- >> prosecutor kelly dillon was confident. >> i felt i had a very strong case. my strategy was to present the

crime scene, the physical as evidence and present richie's multiple stories about how this went down. >> straightforward enough. as richie listened, his wife cindy, beautifully seated near the defense table. the prosecutor called witnesses who told the jury about angela's blood in one of ritchie's cars. about dna linked to richie under angela's fingernails. about the changing self serving stories ritchie told. >> she leaned up and like scratched the mess out of my face, and i grabbed her hands and she just said, i love you. >> up to that point, i was thinking, he might be able to convince a jury. but then when he got to the point where angela sat up and said, richie, i love you, it was done. it was done for me. it's just such an incredible thing to throw into that story. it was just an example of

richie needed to be the hero. >> what did he gain from killing her? what did he think he would gain from killing her? >> control. he wouldn't have to deal with angela anymore. richie wilder is responsible for angela's murder. and only rishi wilder. >> richie's defense attorney, countered that the murder weapon was never found and suggested ritchie was somehow set up. we >> there is reasonable doubt here, and i asked that you find richie wilder not guilty. >> and the jury went out. and returned in less than an hour. >> i've had simple theft cases that have taken longer to decide than this case did. >> we the jury found the defendant rishi wilder junior guilty of the crime of murder. >> guilty. richie's wife cindy dissolved in tears in the courtroom. and then again later in the hallway. >> he's a good man.

he's a good husband. he would never do anything that would hurt his kids. none of it makes any sense to me at all. i know that i was home that night, i got up on a couple of occasions with my kids, when i got up he was at home. >> sad, still so loyal, still clinging to that long demolished alibi. not so uncommon really for a spouse to refuse to accept an awful truth about her man. anyway, cindy was left to pick up the pieces. her sister abby moved to minot to help. >> i just felt like she needed me as a sister, and she needed the support. i've been a single mom for years, i know how hard it is to do it on your own. so, i felt like i was going to do what i could to help her, to bear that burden and to figure things out. >> and it helped. cindy went back to her teaching

job. even with abby there she felt lonely. we have certain kind of lonely. oh. >> coming up! growing suspicions about cindy. >> did she drive him there? was she inside the house? was she involved in this? >> and a secret reveal. >> wow! >> that was my response, wow! >> when dateline continues. teline continues driven by eosinophils, which nucala helps reduce. nucala is a once-monthly add-on injection for severe eosinophilic asthma. nucala is not for sudden breathing problems. allergic reactions can occur. get help right away for swelling of face, mouth, tongue, or trouble breathing. infections that can cause shingles have occurred. don't stop steroids unless told by your doctor. tell your doctor if you have a parasitic infection. may cause headache, injection site reactions, back pain, and fatigue. ask your asthma specialist about a nunormal with nucala. (vo) red lobster's finer points of fun dining: the correct answer to starter or entree is who gives a shrimp, when you get both. introducing new dockside duos.

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at least 32 people have died in a plane crash there that's according to the associated press citing and official, local newspaper reports of state passengers and four crew members were on board the yeti airlines flight. nepal's prime minister saying the plane was flying from the capital captain due to bacarro, that's normally a 20-minute ride, he urged security personnel and the general public to help with the rescue efforts there. this video just sent to us overnight. no word yet on what caused the crash or if any americans were

on board. we will stay on top of the breaking news story right here on msnbc. but for now back to dateline. back to dateline >> welcome back to dateline. i'm natalie morales. it took less than an hour for a jury to find which you wilder guilty of murdering his ex wife angela. even after the verdict, his second wife said and he will continue to stand by her man. insisting to reporters that he was no killer. but cindy was about to rekindle a connection with an old friend. and the story she would tell him would come with a surprising new twist. here again is keith morrison with prairie confidential. >> murder can have so many innocent victims. like the children. angela and richie's, forever deprived of both parents now. >> what i am what the kids have now. they have been with me for the

past year and will continue to be with me. they need to know that their dad is a good man. >> stepmother cindy and kindergarten teachers said she was doing her best in trying circumstances. raising as step kids the kids of the woman her husband had just been convicted of murdering. she did get some help, mind you, from her sister abby. >> i saw that she was struggling and needed some help, you know, trying to figure out the whole single parent thing. >> but of course, abby had to wonder what happened that night. the night richie murdered angela. human nature really. >> i had tried to ask her a few times, you know, are you sure he was home that night? >> same question that bothered those minot detectives. cindy we -- >> he did leave the house that night. >> no he didn't. >> but, as you can tell they had their doubts about cindy. >> did you drive him there?

was she inside the house? was she involved in this? >> plus, no way to know. >> we just did not have anything to go on. >> did you put it out of your mind? >> we did. >> meanwhile, abby helped cindy with the kids and watch her sister grow even more sad. >> she did seem lonely, she wanted someone to talk to. she wanted a companion. it seemed like she was just dealing with the realization that her husband wasn't coming home. >> wasn't necessarily romans she was looking for. just a man to talk to. like the bartender she'd once known at a minot brewery, called the original, his name was matt walters. he and cindy had met before her marriage to richie in 2013. >> we hang out on slow nights. we do shots together. there was one night where we had a really good in-depth conversation, ever since then she felt this connection.

she always refer to it as a connection. >> did she trust you, felt safe with you? >> she seemed like it. >> they lost track of one another after cindy married richie. and cindy had a little girl. but after the murder, cindy found matt on facebook. >> she said something like i suppose you've heard, and i said heard what? and she said -- she linkedin article two richie being arrested. >> did you feel a bit sorry for her? >> yes, i felt really bad for her. >> matt and some friends took cindy out for a drink at, well, where else? and talked about, you guessed it. richie's arrest. did she have any comment about his guilt or innocence? >> she insisted that he was home with her, all night and he never left. i think the only thing i ever said to her was if that's not true and you testified to that in court you could end up in prison. >> matt newsome thing firsthand about prison.

he had done a little bit more than a year behind bars himself in his early twenties. for burglary, before turning his life around. and going to work as an electrician. we warned her? >> yes. i let her know that prison is in a place she wants to go to. >> anyway, matt was a shoulder to cry on. >> she was going through a really crappy time. >> and even after matt moved to denver, they chatted online. one day, cindy said something was, very disturbing! we >> were talking about how richie got caught and he is going to prison and i said well, that's a stupid way to do something like that. and she said, while the knife was a backup it was supposed to be a gun. >> wow! >> that was my response, wow! >> she was the innocent bystander? >> she wasn't the innocent bystander, and when you get law the proper people know. >> so matt did. he called the minot police. who biden had all but given up on the cindy angle.

>> there was a phone call into the general police department phone line, this individual had given his name and phone number and that he had information in regards to the angela wilder homicide. >> so, what did you do? >> we arranged a time for detective mathias and i to place a call and we heard him out. >> he seemed very credible. he was somebody that had this bad gut feeling from conversations that he had with cindy that there is more to this. >> so, detectives took the next step. they enlisted him as a confidential informant, and gave him a name. what's it like to be a confidential informant? >> during the time it was kind of cool. it was kind of like what you see on tv. >> the arrangement, however, was a little daunting. >> they came out and told me if i would be willing to come up there and wear a wire? >> what was it like to hear that? >> i was kind of stunned and

dumbfounded for second. after second i thought, if she was involved, the right thing was to go up there and help them. >> careful. you can never know when you set a trap exactly what you will catch. >> test, test, test. i'm almost there. >> coming up! cindy stayed silent until -- >> all of a sudden it happens. >> we were -- like we had this thing planned for two [bleep] years. >> when dateline continues. teline continues at your chronic kidney disease in type 2 diabetes could progress to dialysis is important. b is for belief that there may be more you can do. just remember that k is for kidneys and kerendia. for adults living with ckd in type 2 diabetes, kerendia is proven to reduce the risk of kidney failure, which can lead to dialysis. kerendia is a once-daily tablet that treats ckd differently than type 2 diabetes medications to help slow the progression of kidney damage and reduce the risk of cardiovascular events,

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suspect that old friend has committed an awful crime? you wear a wire for the cops. matt walters was willing, but how could he even arrange away without arising suspicion to see cindy. after all he lived way off in denver. how did you organize the meeting with cindy? >> i told my god laid off and i was gonna come back to minot to see some friends and asked her she wanted to hang out. she seemed to jump at the opportunity. >> but nervous? oh yes. investigators set up a secret meeting, at this hotel. >> there were four detective sitting there and that's when it hit me, holy cow, this is for real. >> how to do it without speaking her? >> the detectives had an idea. >> one of our options was to have a hotel room which we had audio and video wired and we were going to be in the room next to it.

>> but, matt was engaged, to a girl in denver. >> i said no, that's not gonna happen, there's only one reason you go to a hotel room, and i don't like -- you know, i'm not doing that. >> so, they considered hiding the wire on his body. matt didn't like that either. >> cindy was very careful and paranoid, and i just gathered that if they put a wire on me and we started talking about the stuff there was a chance that she would want to search me. >> he felt like it would be better to just go for a ride or go out and have his car wired. >> so police did just that. then hit a transmitter in the trunk so the detectives could follow and listen and. >> test, test, test. >> 9:30 pm. matt picked up cindy at her house. >> how's it going? >> well, you know. kids are finally passed out. >> they went to a bar, where matt turned on a phone app to

capture the conversation. while they weren't in a car. >> well, i'm gonna get a beer. >> i wanted us to be comfortable together i hadn't seen in years. >> he didn't push too hard, didn't probe. >> this is just my second drink. >> but now he was just so old friend catching up until past midnight, then -- >> i drove her home and you know she didn't get out of my car which is good, but it got to the point it seemed like an hour in where she wasn't saying anything, anything relevant. >> detectives goodman and mathias parked no more than 30 feet away in the dark and were desperately trying to stay awake. >> at some point we both were probably thinking okay, we're on our four, we're sitting in this dark car. you're getting tired, you're getting exhausted, we've been listening for hours. >> there is nothing there? >> and then all of a sudden it happens. >> i said well i should probably get going.

and her body language changed and just the tone of the situation changed we. it was pretty obvious that she was angry. >> angry? >> she seemed angry. >> angry about what? >> i wasn't sure. so i asked her. >> are you mad at your husband? >> no, like, i'm proud of him. i'm just pissed that he got caught, and that he got sloppy and impatient. cause we were -- like, we had this thing planned for two [bleep] years. >> planned for two years? what? >> it was almost the floodgates opened and she got it all off her chest at once. >> he came home that night, and he said, it got sloppy. she fought back. he had to do what he had to do. she put up a good fight. like, she did. >> well, i'm sure. she was fighting for her life. >> she slashed his face. that's what got him to, if it was me i would have got back

there and cut her fingers off. like the house on fire. >> what was it like to hear that? >> it was the hardest mental thing that i've ever had to do. to hold back that urge to tell her to shut the [bleep] up. she is sickening. she is disgusting. >> he [bleep] like went psycho on her. because of the hate. and the frustration. and i totally would've done the same thing to. >> i know, it's like i said before. a knife is a stupid [bleep] way to kill somebody. >> well, he had a gun doubles untraceable. but, and every time he took it a kept like jamming. and i guess that night it was old. i helped him clean up. he left again to dispose of the clothing and the weapon, and everything. and i thought we were like in the clear. >> do you think your horrible person? or do you think it needed to be done? because -- now you've said both. >> i fully believe it needed to be done. >> needed to be done, she said. as if murder was somehow a

winning solution to the long running struggle over who got custody over the kids. and finally, remember what angela told her fiancée before the murder that she was worried about being watched? angela was right to be worried. >> like, i helped him. like, i would -- when he worked nights i would leave the house at like midnight and like, sit outside her house in my vehicle, seeing who came into the house. when her boyfriend left, where -- when, yes, we [bleep] had this planned out. and he [bleep] up. because he didn't clean the car good enough. one [bleep] spot of blood in the car. >> when she said that, can you tell me what that was like? >> we were pretty excited. >> there were some high fives in the car. >> all right. let's call it a [bleep] night. i'm beat, your beat. we'll see each other again. right? >> it's up to you. >> run up and exhausted, matt rendezvoused with detectives at the sleep in. >> we got back to the hotel and

we went to the room and i said to him, is it too soon to hug you? >> i was just so drained, and so then we called it a night. i went back to my friends house that i was staying out and i couldn't sleep for probably two or three hours even though i was exhausted. it was all just so surreal. it was a whirlwind of disbelief and shock and discussed. i kept having pretty graphic images of what angela went through during the murder. >> you didn't know angela didn't you? >> i didn't. >> a few days later, the detectives went to the school where cindy was a substitute teacher. third grade that day. >> we met with her privately in an office at the school and i showed her that i had the arrest warrant for her for being a part of the homicide with angela. >> how did she take it? >> she really didn't respond. she didn't cry. she didn't make any statements. >> oh, but she would.

such a surprise on the way. >> coming up! cindy says she was just bragging. >> a handful of things in that conversation are somewhat true. but for the most part, it's false and extremely exaggerated. >> but will anyone believe her? >> it was kind of a shocker in the court room wasn't it? >> it was a surprise. >> it almost feels like a death of somebody in the family. >> when dateline continues. teline continues yeah. i respect that. but that cough looks pretty bad. try this robitussin honey. the real honey you love, plus the powerful cough relief you need. mind if i root through your trash? robitussin. the only brand with real honeyand elderberry. ♪ i gotta good feeling about this, yeah ♪ ♪ i'm with it ♪ ♪ i gotta good feeling about this ♪ ♪ yeah, ♪ ♪ so let's get it ♪ ♪ i'm feeling good vibes ♪ trelegy for copd.

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did not hold back as she recounted the chilling details of angela wilder's murder to her old friend matt walters, she had no clue matt was recording the conversation, as part of a sting operation cindy was arrested and now headed to court to share a very different version of her story. but first she talk to us, here is keith morrison with the conclusion of prairie confidential. >> cindy wilder was tiny, almost childlike in her jail jumpsuit. barely five feet, maybe 100 pounds, a trusted teacher of the very young and innocent. and yet here she was in court answering to allegations of a very big crime, a huge win -- even those who loved her most.

>> i felt betrayed because i felt sorry for her and as a sister i wanted to help her, and then to find out that it all felt like a big lie and that she was betraying me and i was deceived, it was terrible. >> no doubt. she did say what she said on those tapes with the confidential informant matt walters. >> if it was me i would've gone back and cut her fingers off. burn them, lit the house on fire. >> what did you think when you heard that? knowing there was a two year old child in the house at the time? >> i thought, well, those are strong words. that's a lot of hate. >> but was it? or was it something else altogether. a few days before that scene in court. hello. >> hi. we >> interviewed cindy by phone from the word county jail at minot. how would she? how could she explain all of those terrible things she said

to matt on tape. her answer, was also her legal defense. >> i mean i'm lonely, i was trying to see if there could be a relationship and i was kind of impressive. >> impress him did you say? >> yes. because i know he had a criminal history to, so i thought that would kind of be a connection, a comment thing. >> you said i did all of these terrible things when you didn't really do them. >> a handful of things in that conversation are somewhat true but for the most part it was extremely exaggerated. >> what would be true out of that conversation? >> the fact that i knew about it after it happened. >> okay. >> and you hit the fact that you knew about it? >> right. i didn't want to lose my kids, i don't want to lose my job. >> would the jury believe indies explanation that she was

merely trying to impress a man with a bunch of made-up tough talk? certainly the prosecutor didn't buy it. >> if you're trying to impress a boy, you make up a story about being a state champion gymnast or a diver, not about being an accomplice to murder. >> in any case no jury would have to decide. on the charge of conspiracy to commit murder, the prosecutor offered a deal, cindy would spend 25 years in prison, then get out to resume her life. and cindy turned it down. she had a strategy of her own, she would take an elfrid plea meaning she would plead guilty not because she did it but because the jury would find her guilty in that way she believe the judge would impose a much lighter penalty. and, in may 2018's indies attorney appeal to judge stacey lowe served for a lenient sentence, ten years.

and now it was the judges turn, would she believe cindy's explanation? >> you were the one person who could have stopped this nightmare, you were the one person who could've intervened, who could have called law enforcement when rishi wilder left your home, you were the one person who could have spared angela wilder's life. you chose not to do so. i am here by remanding you to the north dakota department of corrections and rehabilitation as to count one conspiracy to commit murder, to a sentence of life in president without the possibility of parole. >> life without parole! that was kind of a shocker in the courtroom that day in fact wasn't it? >> it was a surprise. but i mean it's certainly in my mind well deserved. >> were you surprised? >> this judge is known for hard sentencing in particular when children are implicated.

>> they certainly were in this one. >> absolutely. >> from cindy not a flinch. from her sister? >> it almost feels like a death of someone in the family. everything changed. at least before there was some sort of a hope that even if there was a long period of time there still that hope that you know, we can make memories again and go on trips and you know spend time together outside of prison walls. and that is gone. >> but for angela's sister? >> she's a horrible person. she's exactly where she needs to be. and i am so thankful that the judge saw her for the individual that she is. the monster that she is. >> and so our story ends with a family shattered. and matt walters? doesn't regret his decision to wear a wire. but he struggles doing the

right thing was not easy. >> basically i'm responsible for ending another person's life, in all meaningful ways, which is fine, she deserves it, but it's still kind of a hard thing to deal with to know you and it's someone's life. >> you feel somehow it's on you? >> there's like a weight on me. >> and angela would surely be working as a nurse by now. we'd finally have achieved her lifelong ambition to care for people and make them well. >> she pops in my head and i just think i'm sad because she would have been one heck of a nurse. >> that's all for this edition of dateline, i'm natalie morales, thank you for watching. morales, thank you for watching >> hello everyone i'm alisyn miranda's a new hour, new classified documents handed over by the presidents team,