male announcer ] spring is calling. save 25% when you buy two scotts fertilizers -- one to use now and one for later. . she was beautiful. her eyes were remarkable. i was going to be there for her and she was going to be there for me. didn't matter what it was. i thought maybe she had been kidnapped. no one knew what was happening. there was nothing i could have done or anyone could have done. >> skylar, rachel, sheila, total bffs. >> they hung out all the time. >> you thought of them as a team. >> the three of tell were inseparable. >> one ended up missing. >> nobody knows where she is. >> something is wrong. something is bad wrong. >> where was skylar? someone was hiding something. >> like the fbi, they were serious. >> insta gram, facebook, out of control.

>> we take you inside a secret world that's going to stun you. teenagers, social media and murder. >> she was like, well, she'll blackmail me. >> a click of mean girls. were they mean enough to kill? >> it was such a shocking and scandalous kind of case. >> this was diabolical. evil comes in all shapes and sizes. >> i'm lester holt and this is "dateline", andrea canning with "something wicked." >> in the gentle rolling hills of northern west virginia in a sweet college town in the heart of coal country lived three teenage girls. their photos capture a moment in time. they were smart, talented, lovely. everything a parent could hope for in a daughter. >> and so who could have guessed just by looking that some of

them carried a dark secret about a friend. >> 911, do you have an emergency? >> i have a 16-year-old daughter and hasn't been home, hasn't went to work. i'm scared to death. >> these teens played a strange and haunting game. >> would you rather sufficient indicate or get shot? >> went beyond teenage drama. >> why, why, why? >> at the center of it all was a girl named skylar. dave and mary neese welcome their only daughter skylar to the world back in 1996. >> tell me about the day she was born, was that the greatest moment of your life? >> i wouldn't go that far. >> first time you saw her. >> first time i saw her, yes, i could say that was the greatest moment of my life. it was instant love. >> they live in star city, a small suburb of morgantown, west virginia, where dave works at

walmart and mary at a medical office. skylar was a whirlwind, rambunctious toddler who owned her parents heart. >> hey gorgeous, you're a beautiful baby. >> she was reading before she was supposed to, doing math and stuff before she was supposed to, very intelligent little girl. >> when skylar started nursery school she made her first friend, morgan lawrence, drawn right away too skylar. >> did she light up a room? >> yeah, the giggle and the laugh. >> the girls families became good friends too. morg morgan's parents say they were like sisters. >> what are your memories of skylar when she was this high? >> she giggled all the time, filled our house. >> she had the biggest eyes, you wanted to hug her. >> she was good girls and got good grades. morgan dreamed of becoming a meteorologist and skylar a criminal lawyer. they also had a pact, that they would always be there for one another.

>> and you would be in each other's wedding parties. >> everyone has a sister to put in their wedding and we had each other. >> as freshman at morgantown high school, they drifted apart. with the new school came new friends, this classmate says bubbly skylar fit in right away. >> friends came first with her. she was always about hanging out with friends if she didn't have work or school. >> skylar had two new bffs, sheila eddie, who the nees had known for year and shoef, it wasn't long before they were calling themselves the three musketeers. >> they were together every second of every day it seemed like. they hung out all the time. >> like all teenage girls they shared videos and photos with each other and online. we get a glimpse into their world. skylar and sheila having friend. >> of course they occasionally

got into trouble but even then it was for typical teenage things. dave and mary weren't too concerned. >> she's a straight a student, loves her parents. did you sort of chalk it up to we're not thrilled but she's a teenager? >> exactly. >> when summer rolled around after her sophomore year, skylar seemed happy. she had a job at wendy's which she loved. on thursday, july 5th, 2012, she came home after work and got ready for bed. >> she put her arm around her mom and gave her a kiss and gave her a hug and said, i love you mom. turned to me and said i love you dad and went to the room. >> the next day, dave planned to meet skylar in their apartment at lunchtime. he was surprised she wasn't there. a little worried he called mary. >> i thought she was out with one of her other friends. i figured they went swimming or shopping. >> dave called her friends, including sheila. no one had seen her. next he went outside and found more cause for worry. a small bench was tucked near

skylar's window and the window screen was missing. >> at this time i called skylar's cell phone, you're in trouble. you better be calling me right away. i called her cell phone about ten times. i called mary again. >> again mary told him to calm down. she said skylar was expected at work at 4:00. >> i said we're not going to worry. i'll call them about ten after 4:00, give her time to clock in and everything, see if she's there. >> but mary didn't get a chance to call wendy's. >> they called us first wanting to know if she was coming to work. >> was that a big moment for you? >> yeah. >> a few minutes later there was another big surprise, a call from sheila. >> she said she had to tell me the truth. i said, what truth? she said, well, we snuck out last night. >> mary's heart fell. skylar had done that once before, went on a joyride with rachel and sheila.

that time they got caught for being out after curfew. here's they'd done it again. >> where's skylar? she said skylar insisted they drop her off at the end of the street so we wouldn't hear her sneaking back in. >> now that missing screen and bench outside skylar's window made sense. skylar had put it there to boost herself up to get back in. but it left them with a terrifying possibility. >> my first instinct was someone abducted her from the end of the street to our house. >> dave called the police. >> i have a daughter that's 16 years old, apparently snuck out of her room last night and she hasn't been seen since. none of her friends can get a hold of her. >> what's her name. >> skylar neese. >> their only daughter had disappeared into the night and now she had been gone for nearly 24 hours. where was skylar?

>> when we come back, the investigation begins and concern for skylar begins to grow. >> had this horrible feeling in my heart that something terrible had happened. >> a grainy piece of videotape is about to give police one giant clue. what can they glean from this? >> she slowly walked down to a car and got in the back seat. ♪ it takes two to make a thing go right ♪ ♪ ♪ it takes two to make it outta sight ♪ ♪ ♪ it takes two to make a thing go right ♪ ♪ ♪ it takes two to make it outta sight ♪ ♪ [ female announcer ] only yoplait light and yoplait greek 100 are endorsed by weight watchers. so many delicious flavors that taste outta sight. where you'll save $90 on this 60-inch vizio smart led tv, plus pick up doritos

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tough pill to swallow for the entire community. >> police officer jess colbank sheila eddie had said skylar was home around midnight. so what was this car doing pulling up around 12:30 a.m. who was in it? dave neese watched horrified as there on the tape out walked skylar. >> she slowly walked down to a car sitting there waiting on her and got in the back seat. i could tell that. and she drove away. >> police couldn't quite make out a license plate or tell the make or model. skylar's mom mary had a theory. >> she made it home, snuck back in the window then a second person or persons had parked

behind the building and she snuck out a second time. >> but why? who was in the car? and where did they go? the police didn't issue an amber alert since it looked like skylar left voluntarily. >> once the video came out that she willingly got in this car, they are not going to come out and look for somebody driving around in a car. >> skylar's friend sheila came right over. >> she spent a lot of time here telling us that it will be okay, she'll be home and i really miss her. i love her. i want her back. >> the next day sheila sat with mary on skylar's bed, both of them crying. >> did it bring you comfort when sheila would come by being skylar's best friend? >> it did me a little bit, yeah, knowing how could skylar leave her behind? >> mary and sheila took to the streets together posting flyers for skylar. >> they would knock on doors and asked have you seen this girl? we kept showing pictures to people and nobody had seen her. >> sheila was very, very worried

about what had happened to skylar. >> chriscy swan son is a close family friend of sheila's and saw her distress firsthand. >> she was trying so hard to help them figure out what had happened. >> the star city police are still looking for a missing 16-year-old. >> dave made a plea for help on local news station, wboy. >> we love her. we want her home. >> by sunday night skylar had been gone the whole weekend. the family, including her aunt carol was heart sick. >> i just had this horrible feeling in my heart that, you know, something terrible had happened and it wasn't like her to run away or disappear like she did. >> mary told me that night, something is wrong, dave, something is bad wrong. >> your mind had gone to that place, already, that she may never come home?

the community held a candlelight vigil. skylar's school friends came, including rachel and sheila. >> they were crying and came up and hugged me and mary, crying their eyes out. >> the only thing mary could say, how can we help these girls? >> the family friend morgan lawrence was upset too. she read on facebook that skylar was missing. >> did it scare you when you started to see the posts? >> definitely. >> how worried were you? >> sick to my stomach. >> so was officer colbank at it nonstop. >> i would come back to the office in the evening, getting facebook records, watching video. she was swamped with tips from people saying they had seen her, even california, each sighting was a dead end. at the same time colbank pulled skylar's record and what she found was ominous. skylar wasn't using her cell

phone or a.t.m. card. colbank had serious doubts that she had run away. >> runaways usually take items that they need, contacts glasses, didn't take that with her. >> police got an important new lead in the case. there were two bank robberies in the nearby town of blacksville, both had gone down around the time skylar vanished. >> i was working with other investigators on the bank robbery. >> ronnie gaskins was called in to skylar's case. there had been a tip that somehow skylar had been at a party with suspected bank robbers when something bad happened. >> what was the theory? >> just rumors, gossip going around that there was a teenage party. there was a possible overdose. and people there were scared so they hid the body. >> it seemed unlikely skylar didn't use heavy drugs. >> it was just a lot of tracking down rumors and tons and tons and tons of rumors.

>> all leading nowhere. by now skylar had been gone more than a month. gaskins vowed he would find her. >> i don't like to make promises in my line of work. but the only promise i made today, we would never stop, never give up in trying to find out what happened to skylar. >> their search for skylar had taken them across the united states. what they didn't know then was that the truth was right there in morgantown at university high. coming up -- >> twitter, instagram, facebook, things got out of control. >> whispers in the hallways, was someone hiding something? police are about to get a break. >> that was an aha moment, finally we have something to go on. >> when "dateline" continues.

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>> skylar's friend was dreading roll call. >> didn't have any -- you can't tell the future. we don't know if she's coming back.

>> in some ways skylar's good friend sheila eddie seen in this video in the classroom is back in school. so is bff rachel shoff ♪ the world around me changes >> rachel got the lead in the fall play but everyone was worried about skylar. in the school hallways and social media, rumors flew. >> between twitter and instagram and facebook, you just see things start to get ridiculously out of control. >> kept saying things from skylar had overdosed and things that skylar is in a different country. >> daniel was in drama with rachel and knew how close the girls were. she wondered if sheila and rachel may be covering something up for skylar. >> there were rumors going around, rachel and sheila know where she's hiding. >> daniel knew they were the last ones to see skylar and

wondered if they were protecting her or maybe protecting someone else. either way, they had to know something. >> there were probably a good three or four or five times where i told rachel, if you know something, you need to say what happened or where she's at. >> daniel wasn't alone. writers live in the area and written a book about skylar's case. they spent hours combing through what kids were saying on social media. >> the one thing that stood out to me is that people, teens were tweeting sheila and rachel had to know something. >> why don't you guys just talk, say something? tell us what you know. >> rachel and sheila seen here in a photo taken around that time were now at the center of a storm. they had supporters like shaniya. >> i completely 100% supported and defended sheila. >> and fantasia littler. >> when i would stand up for

sheila, i would get snide comments from people. >> the heat got turned up on the girls when the fbi showed up and started interviewing students. >> i was only interviewed once. i guess i was nervous, the fbi were serious, asked me about rachel and sheila, if they seemed any different. i was telling them they didn't seem different but they were secluded to themselves more. >> the normal fall rituals like football and homecoming were punk waited with police visits, rachel left play rehearsal to meet with the fbi. >> talk about i have a lie detector test today or something. >> mary and dave neese, desperate to find their daughter, thought the police were wasting their time investigating the girls they knew so well. >> went to the police, will you leave sheila alone, please, you guys are harassing her 24/7. the kid is going through enough right now. leave her alone. >> you defended her?

>> oh, god yeah. she was like our daughter. >> investigators were convinced that the two girls knew more than they were saying. >> was it sort of the police, look nobody is in trouble we want to know where she is. >> we need to know what happened. >> that fall, ronnie gaskins interviewed each girl repeatedly. >> how was sheila's demeanor in the meetings with her? >> calm. collect. look at you right in the face, right in your eyes. >> he said rachel seemed distracted. >> she would draw on the desk, play with the pencil, nonverbal cues spoke a lot. >> their story never varied. they picked skylar up and drove around morgantown and smoked a little sppot and dropped her ofa few blocks from home. >> it was like a record with these two. >> the officers begun to collect physical evidence and it didn't match with the story the girls

were telling. surveillance video had the car heading west towards blacksville. and the girls phone records from that night showed rachel's phone pinging off a cell tower in blacksville. >> that was an aha moment, finally we have something to go on that's different from their story. >> now even skylar's parents joined the chorus of people trying to get the girls to talk. >> i started posting on facebook things about karma, karma will get you. you can't hide. we were pushing. we were pushing the girls to get them to say what happened. >> by late november, the pressure seemed to be taking its toll on rachel. in an interview, she surprised police by changing her story. admitting for first time that they did drive to blacksville that night. and that's where skylar told them to let her out of the car. blacksville, where those bank robberies had happened. the next day, sheila changed her

story to say the same thing. >> that must have been a big red flag for you. >> absolutely. >> at school, kids say rachel was increasingly rattled. >> rachel seemed distressed, like she was very upset over something. i mean this was eating at her heart. >> rachel shoff was about to crack. >> coming up -- >> this is over. please hurry. >> an emergency at home, an interview with police, what exactly was rachel shoff about to reveal. >> we were speechless. ♪

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no hicimos nada, para >> we didn't do anything.3 f2 clases, pero al poco tiempo re she was acting out, the walls were closing in on rachel?

>> uh-huh.3 f2 madre de rachel, no, esto no, no, this is over. my husband is trying to contain her. please hurry. >> rachel was taken to a mental health facility. corporal ronnie gaskins got a big surprise. rachel wanted to meet at the lawyer's office, had something she wanted to say. >> take us inside that attorney's office with rachel. what was her demeanor? >> i remember her pulling up a waste basket, afraid she was going to throw up. then started asking her questions that we thought she would answer, an overdose or a party? her face got really red and she -- glanced at us and said we stabbed her.

>> was there a hush in the room? how did everyone react? >> everyone was silent for a couple of minutes. we were speechless. >> it wasn't an accident, it was a murder. not only had rachel and she'll killed skylar, they planned today for month. as part of the plan, rachel and sheila settled on the night of july 5th as the ideal time to kill skylar. >> earlier that day, rachel had obtained a shovel from her father's residence and put it in sheila's trunk and brought clean clothes and cleaning supplies and according to rachel sheila provided the kitchen knife. >> they called skylar to say they were on the way over. >> pulled up to the residence. >> there's skylar sneaking out in the grainy surveillance video. the car is sheila's and inside

are skylar's two best friends. >> skylar gets in the car. >> they drove for nearly an hour, for miles and miles, dark winding roads down past blacksville. >> they park the car and found an area where they could sit and talk. skylar leaves to go back to the car and rachel said, on three. >> according to gaskin, rachel said she counted, one, two, three. and on three the two girls began. >> that's when her and sheila started stabbing skylar. from behind. >> oh, my -- >> gaskins said skylar fought hard to defend herself. >> did rachel indicate what skylar's last words were, final moments in that meeting? >> she said skylar said why.

that's all she said. >> rachel said the girls covered the body with dirt and branches. threw their bloody clothes in the trunk and left skylar there. >> did rachel express how she felt when the crime was over? >> i just remember her saying that something she wanted to get done before she went to church camp. >> how did you feel when she said i have to get this done before church camp? >> what are we dealing with? >> did you ask rachel why? why did you two do this? >> she would not give us any specific details. other than they didn't like her. then when i asked her what do you mean you didn't like her? clarify that. nothing, we just didn't like her. >> after telling police the story, rachel led authorities down that lonely road past blacksville to a spot just across the pennsylvania border. there they eventually found a few scattered human remains and sent them to a lab for testing.

>> i couldn't imagine the pain and suffering being alone in that place with her two best friends and knew what was happening when they started stabbing her. >> authorities kept rachel's confession secret, even from the neese's while the investigation continued. the fbi told mary and dave only that remains believed to be skylar's had been found. >> i broke down pretty bad, yeah. >> we both did. that was a bad day. >> so lonely, so deserted. it was a horrible thing to know she had been there and no one knew. >> one, two, three, go! happy birthday, skylar. >> february of 2013, just as they had since she was a little girl. >> i'm ready. >> the nees gathered with friends on skylar's birthday, this time without her and told

the lawrences their awful news. >> did your heartbreak for mary and dave? >> my heart was slowly breaking the entire time. >> i remember first thing i thought, like a surreal -- i know she's not out there in the cold. >> ronnie gask ins had a confession from rachel and led him to the body but it wasn't enough. >> why wouldn't you arrest someone right away? >> she lied to us a number of times before. we had to see if she is lying again. we had to corroborate her statement. >> gaskins needed rachel so didn't arrest her. instead he was about to use rachel to get sheila. >> coming up -- grieving or pretending? >> sheila seemed like she was so upset to have lost her best friend. she even asked me, how could someone do this to skylar.

>> would the truth catch up to sheila eddie? ♪ see what's new at projectluna.com we get to the end of the day and i am toast. in fact, we've had toast for dinner. but tonight i nailed it. kfc family feast. 9 pieces any recipe, 3 large sides, 6 biscuits, $19.99. do not give up on dinner. ♪

corporal ronnie gaskins was on a mission to put the two girls behind bars. >> it was one of those where you couldn't get there fast enough. rachel shoaf had just confessed to teaming one sheila eddy to

kill their friend, skylar neese. now she was cooperating with police. gaskins aej fellow investigators hatched a plan. rachel would invite sheila to her house. as cameras rolled, she would try to get sheila to incriminate herself. >> we were close by in case something happened. >> she tweeted this photo of herself with an uncomfortable looking rachel with the caption, finally got to see rach. the police didn't record anything to pin sheila to the crime. >> the girls did not disclose anything specific. they were just very casual. >> a few days later the police went to sheila's house with a warrant. >> we seized every kitchen knife we could find and the fbi seized sheila's car and they were able to find the presence of dna in the trunk. >> narrator: dna in sheila's trunk. if it proved to be skyler's, it would be critical to gaskins

case. a direct link connecting the girls to skylar's death. they shipped the sample off to the lab and waited. meanwhile, gaskins got a positive id on the human remains found out past blacksville, it was skylar. >> the search for skylar neese is over. at university high school, confirmation that skylar had been found dead was heartbreaking. >> i was devastated. it was crazy. >> shaniya called her friend sheila as soon as she heard the awful news. >> i was crying and she was crying. >> there was sheila, suspected murderer, crying tears for skylar. >> she's like, who do you think could have done this? why would somebody do that to skylar? >> sheila also cried with her friend chriscy swanson. >> and once skylar's body was found, sheila seemed like she was so upset to have lost her best friend, she couldn't

believe that something like this would happen. she even asked me how could someone do this to skylar? >> and sheila let everybody know how sad she was. she tweeted things like, worst day of my whole life. the pain is real. and rest easy, skylar, you'll always be my best friend. i miss you more than you could ever know. but social media revealed two sides to sheila, she could mourn skylar but on twitter and facebook sheila also seemed carefree. as police continued the investigation, sheila posted photos of the prom. rachel tweeted, i need a mimosa or ten. they were going about their lives, even while the police believed the girls were stone cold killers. >> the locals would whisper in each other's ears and say how are they still free? >> running a blog called news ball.com.

he followed this case and struck by sheila's tweet, ain't no rest for the wicked and incredibly this apparent reference to the countdown to skylar's murder, we really did go on three. it's unbelievable she feels she's so invincible to tweet this publicly. >> sheila eddy seemed to be daring police to put her in handcuffs. >> she would come to be interviewed then leave. >> then leave. >> by mid april of last year, ronnie gaskins got the one critical piece of evidence he needed, confirmation that skylar's blood had been found in sheila's trunk. >> on top of the video surve surveillance and statement, we felt confident we had probable cause to make an arrest. >> authorities told skylar's parents the whole story, their daughter's two best friends had killed her.

>> i think about it every day. i think about the misery my child must have been through and i'm helpless, i can't help her. she's calling out help me, why? why? >> animals got her, they didn't even care. >> they just threw her out like a bag of trash. >> on may 1st, 2013, in exchange for cooperation with police, rachel schoff pled guilty to second degree murder. within minutes gaskins raced across town with heart racing. >> we had a murder warrant to serve. >> sheila was arrested and charged with first degree murder in the parking lot of the local cracker barrel restaurant where she and her mom were having lunch. >> sheila was crying and she kept asking her mother, is everything going to be okay? her mother -- >> gaskins promised skylar's parents he wouldn't quit until the case was solved.

>> it felt good that she was coming with us. >> the question of who had been answered. the people were haunted by an unanswered question. skylar's last word, why? >> coming up -- >> i became caught up in something i did not want to do. >> the accused killers head to court and the motive for murder -- >> she slammed that crime for days and weeks and months. >> what could that be? and seven beautiful benefits in one. for younger-looking skin. so while your life may be ever-changing... ♪ ...your beautiful skin will stay beautiful. total effects from olay. your best beautiful.

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sheila eddy was not about to give in without a fight. there she was last september alone blonde teen in a crowd of accused men pleading not guilty to the kidnapping and murder of skylar neese. this was terrible news for skylar's parents. >> i don't want to go through a trial and hear the grisly details of all of this. that would tear me apart. >> with the trial looming, the question on everyone's mind was why. investigators wanted to know too when in the halls of university high, they got glimpses of a

motive, saw snapshots of a troubled three-way friendship. morgan lawrence saw a disturbing dynamic firsthand. >> as far back as freshman here, morgan had worried that skylar was heading into a place she might not belong when she became close friends with rachel and sheila. morgan especially didn't like sheila. >> she hung out with the wrong crowd, she had lots of friends that were 20-something years old. that's just a little strange. >> morgan said she watched as the three became inseparable. >> they would walk through the halls and you don't see one without the other, it's always sheila, skylar, rachel, always together. by sophomore year he saw changes in skylar. >> it seemed like about that time, she didn't have that same nice quality to her. >> she was more sour, i think, toward people. she started almost acting the way that sheila acted. >> it must have been hard to see

her changing. >> it's difficult to watch it in general, and it's even harder when it's someone as close as someone that you called your family. >> students told writers that by mid sophomore year the three girls relationship had begun to deteriorate. they have written about this in their book. >> sheila and rachel were dising skylar when she wasn't around, putting her down, that kind of thing. >> yeah. >> i could definitely tell that they were kind of pushing skylar away, or at least trying to. >> it's clear from these photos, whatever was happening, three was a crowd. students say that around this time, they started hearing rachel and sheila discuss the best way to kill someone. and rachel's friend, fantasia lille recalls a chilling relationship. >> rachel was ranting how much she didn't like skylar.

word for word was i didn't mind if she died at this point. >> which makes this cell phone video all the more haunting because it was captured by skylar six months before she was killed. sheila asked skylar and rachel the best way to die. >> would you rather get suffocated or shot. >> shot, there would be no suffering. >> drowning or suffocating? >> suffocating. >> it's almost the same thing. >> incredibly disturbing scene. friends say in the months before skylar's death, she and sheila fought constantly. late on july 5th, skylar tweeted this -- you doing blank like that is why i'll never completely trust you. later that night skylar is seen on that surveillance tape driving away from home for the last time. what were they fighting about? there's a possible answer. hallway whispers that rachel and sheila developed a sexual relationship and that skylar

knew and threatened to out them. did they kill her to keep their secret? close to a motive as anyone can come up with. >> do you think we'll ever know why it happened? >> i think it's something for rachel and sheila to say. they know the answers to that. >> last january, dave and mary finally got the news they had been hoping for, a plea deal. >> sheila eddy, how do you plead to the offense of murder in the first degree and felony charged in the indictment in this case? >> guilty. >> sheila's attorney read a statement from sheila and her family. >> my client and her family recognize that the neese family is in a constant state of despair and loneliness and sadness as a result of skylar's death. >> sheila was sentenced to life in prison and eligible for parole in 15 years. and just last week, dave and mary went back to court.

this time for rachel shoff's sentencing. >> rachel had a profound sadness at this loss and profound sadness for mr. and mrs. neese. >> therapist patricia bail by was hired by rachel's family and meeting with rachel in prison since last summer. >> from the day i met rachel, she has said to me, i deserve to be in here. i did something terribly wrong. i hurt somebody. rachel does miss skylar very much so and also weeps for her because she knows that she cannot undue the past and she will never see her again. >> in court, rachel apologized directly to dave and mary. >> i don't know if there's a proper way to make this apology because there are not even words to describe the guilty and remorse that i feel each day for what i've done. i became scared and caught up in something i did not want to do. and never realized the gravity of my actions and how many people i've hurt. >> skylar's dad, who once

defended the girls didn't mince words. >> rachel, should have also murdered my daughter in cold blood. she can take her apologies and everything else and sit on because that's about what they are worth to me and my wife. she has done nothing about make our lives a living hell since day one. >> dave and mary wish they had known more about what was going on in skylar's life in the months before she died. >> what is your biggest regret, if you have one? >> not knowing the girls better. and i don't know if anyone could have known them that well. there had to be a sign somewhere, had to be a clue. >> would you please stand. >> rachel was sentenced to 30 years in prison. she will be eligible for parole in ten years. prosecutor marshall ashdown says don't be fooled by the girls appearance. >> are they cold, calculated killers, despite the baby faces. >> they certainly were on july 5th and 6th of 2012.

they planned that crime, not just for hours, but days, weeks, months. the horror of that really is what strikes us in the end, not how those girls look in shackles. >> young, attractive, unattractive, male, female, doesn't matter. evil comes in all shapes and sizes. >> these days around morgantown, there's lingering damage. teenagers who feel they'll never trust anyone again. >> after i had heard all of that i didn't really want to become friends with anybody else. >> it was like finding out your little sister was a murderer. >> still to this day have trust issues. >> skylar's friend morgan lawrence thinks about all of the milestones she and skylar had planned to mark together. >> you two should be doing everything alongside each other. >> yeah, we didn't just, take away a bride but a bridemaids.

>> skylar's second parents will miss out two. >> when morgan walks down the aisle, skylar won't be there. she will be, she'll be watching over us. she will. >> last june dave and mary had a memorial service at the site where she was killed and proud have helped with amber alerts even when a suspected teen runs away. it is peaceful now. they come here often, even in the winter to tend the small garden they built for skylar. >> nar mary, how do you want he be remembered? >> the happy loving little girl she was. >> and a smile, that smile could light up a room. >> that's all for this edition of "dateline." join us tomorrow for the first "dateline" saturday night mystery at 8:00, 7:00 central.

we'll see you sunday night at 7:00, 6:00 central. i'm lester holt. for all of us at nbc news, good night. . - [screaming] oh, hurry up, it's coming! - okay, breathe, breathe. - hold on--ow! - breathe. steady. even. - oh, my god! oh, shut up! just get this thing out of me. - okay, i can see the baby's head. keep pushing. - aah! give me your hand. [squeals] don't let this thing kill me. - i won't, okay? just breathe. look at me, look at me. you can do this. - [grunts] - concentrate on me. breathe in... - [inhales deeply] - and out-- - aah! - [panting] [whimpering] - you've got to stop that. - stop what? aah. - just keep pushing, pushing, and push. - aah! - and push, go.