Toxic

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Courtesy of Roger Kiernos, Knight Law Group, LLP. Hey, everyone.
I'm Jenna Bush Hager from The Today Show, and I'm excited to share my podcast, Open Book with Jenna. It is back for Season 2.
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In the pit of my stomach, I just knew something's not right here. I just felt something bad had happened.
He must have been so, so scared. They were so happy at first.
Kevin just fell in love with her. Morgan was very, very charming.
But when the marriage went bad, he went missing. He just disappeared.
Was this a husband who didn't want to be found? Was this a wife who had something to hide? They're getting in the truck. They're leaving.
What had happened behind closed doors? She laughed and said, no, there's no affair. Someone was keeping secrets, and even The police couldn't wrap their heads around this one until they found it.
A trail of texts. We were like, holy smokes, it's right there.
It sure was every stunning detail. Snapple iced tea, it seemed like the perfect tool to put the poison inside of.
Was this a loving spouse or a lethal one? Police were in for a killer surprise. Like, I feel like the gates of hell are opening.
I don't know what they were thinking. Tonight, Hoda Kotb with a tale of a love triangle turned toxic.
How much do we reveal to the ones we love? Do we keep our betrayals hidden behind closed doors? Or do we hide in plain sight, masking our deeds with words? The text message says, I'm fine, just clearing my head. That was Kevin Mangle for a time.
Clearing his head, he told his family and friends. Facebook status Facebook status wants to be left alone.
Maybe he just had enough and needed a vacation for himself. But there was a trail of electronic messages that seemed to tell another story, a far more sinister one.
We were floored. It was all there for us to read.
You can't make this stuff up. Which was fact and which was fiction? These text messages don't even seem real.
Like they don't, they just don't seem real. Long before Kevin Mengel had a cell phone or a Facebook page, he was a high school guy in suburban Philadelphia with a cute little sister to worry about.
Kevin was the stereotypical older brother. He would follow me around and tell all his friends they weren't allowed to talk to me and things like that.
Was he being protective? Very protective. For as long as Michelle can remember, Kevin Mangle was a family man, a big brother who felt he needed to look after his younger siblings after their parents divorced.
Kevin had a terrible time with it and just always told us that he would never get a divorce, he would never get a divorce. Instead, Kevin grew up in search of perfect romance.
Kevin always had girlfriends. But he was always sort of a monogamous guy.
When he was with one girlfriend, he was with a girl. Yes, and Kevin was very committed to making sure that he stayed in a relationship, and he gave it his all.
Kevin was 20 when he met the one, his forever girl, Morgan from a few towns away, where she'd graduated from an exclusive Catholic girl school. Morgan was very, very charming.
I mean, she was very sweet and very attentive to me. I mean, always came over the house just to hang out with me.
Outgoing and charismatic, Morgan made an effort to win over Kevin's friends too, Mike and his fiancée, Noel. Very nice, very upbeat, very friendly, always smiling.
And Kevin, well, he fell hard for Morgan's charm. He just, he loved her.
He was head over heels for her. So Kevin was about to get what he'd always wanted, a wife and kids, but just not in that order.
Morgan gave birth to their first child a few months before they got married. Still, theirs was no shotgun wedding the young couple celebrated in traditional style.
Kevin was on top of the world. It was the perfect picture, wasn't it? It was the perfect picture.
Kevin loved being a dad, and he and Morgan had two more children. But his relationship with his own father was rocky, had been since his parents' divorce.
We were both stubborn and we were both pickheaded. So he didn't call me, I didn't call him, and then it got into a little bit of a battle.
Years went by. And years went by.
But by June 2010, Kevin and his dad had patched things up, grown closer than ever. They made plans for the whole family to celebrate Father's Day together.
He was so excited. He said to me, Dad, I can't wait to come out for Father's Day.
And I said, I can't wait to have you. I said, I love you, and this is so wonderful.
He just seemed to be at a peace that I had not ever seen him at. Then it was the morning of the Father's Day party when it happened.
Sister Michelle called their mom to check in. She didn't sound right.
And I said, are you okay? And she said, Kevin left. And she just started crying hysterically.
And she said, Kevin left, Kevin left. And I said, mom, something's not right here.
He left the three kids. He left Morgan.
I don't know where he went. He won't pick up his phone.
He just sent me a text message. Kevin, the till death do us part romantic, leave his wife and kids?

Perhaps Morgan put it best when she typed out their Father's Day regrets to Kevin Sr.

We received a text message from Morgan saying,

due to unforeseen circumstances, we will not be able to be there today.

Happy Father's Day.

Unforeseen circumstances? What exactly did that mean? We all knew how excited he was for Father's Day. It would be the one day Kevin would not miss ever, no matter what happened.
No matter what happened, where had Kevin Mangle gone? Coming up, Kevin's family was concerned, but the police, not so much. There was no reason to believe that anything had happened to Kevin.
And we'll learn that maybe there was a reason

for Kevin to hit the road.'s Day celebration. Father's Day that Sunday with all of us.
So it was supposed to be a big Father's Day celebration. Big Father's Day, and he couldn't have been more excited.
Kevin's younger brother, Chris, also knew how much he was looking forward to being with his family. After all, Kevin had just reconciled with their dad after many rocky years.
I thought, man, this is odd. Why would he do this now? It doesn't make any sense.
The story Morgan, the wife told, was that Kevin had taken off, told her that the marriage was over. In fact, by Father's Day, he'd already been gone for two days.
Kevin's fine. He's clearing his head.
What do you mean Kevin's fine? He's fine. He just had to leave, get away, and clear his head.

So she's trying to tell you he needed space.

He needs space.

I could see him blowing off and taking off and saying, I'm just going to get away.

And so that part of me said, okay, he just did that,

and he's going to come back in here today or tomorrow or whatever.

It's just we just have to be patient.

Yeah, we just have to be patient.

Patient because those close to Kevin and Morgan had seen the couple's ups and downs before. Their breakups, in fact, were almost an annual event.
It was like clockwork. Every August around their anniversary, we would expect the phone call that Morgan picked up and left.
And Kevin would call us crying hysterically. He would just be completely distraught.
He said, I love her. I can't help it.
I love her. And soon Morgan would return.
Kevin's world would right itself and they'd be as good as newlyweds for a while. She could act like nothing ever happened and acting all lovey-dovey sitting down on his lap.
But now what was weird about this separation was that Kevin had taken off, not the other way around. She always took the kids, and she always left.
Kevin never once walked out on her. His family worried this must have been the fight to end all fights.
And it wasn't like Kevin not to call his family for support. The only person he reached out to was his mom.
A few days after he disappeared, he sent her a cryptic text message that seemed to alarm her more than put her at ease. And so Kevin's mom did something that seemed a little drastic.
She called the West Goshen police to report him missing. We thought maybe she was overreacting to Kevin leaving.
Detective David Maurer. There was no reason to believe that anything had happened to Kevin.
She was receiving text messages from Kevin's phone. Their feelings were that if somebody is communicating with him, then he's not missing.
Kevin's dad agreed. I was a little concerned that She may end up with a little bit of egg on her face because he was going to show up and...
Right, she'd call the cops. Yeah.
Okay. And not long after that initial missing person report was filed with the police department, an officer called the family back to say Kevin had been spotted not far from his home.
And one of the officers

stopped at a check cashing place right up the street from where Morgan and Kevin live. And the owner of the check cashing place was very familiar with Kevin and he saw him across the street.
So that lended some credibility also that Kevin was in the area. He was close to home sending texts to his wife and mother just refusing to see or speak to his family.

And he did finally respond via text to his father. What'd you get back? Doing okay.
Just need time away. And Kevin's sister received this message.
Hey, sis. I'm fine.
Worry about Morgan. She's the one you should be worried about.
But Morgan, it appeared, was doing just fine. The couple owned a landscaping business, and Monday morning, Morgan showed up to meet the crews and told them she was now in charge.
Employee Al Funari recalls she had the garage looking spotless. There's always oil drips on the ground.
This day, you could have ate off this floor. But this was new, too, as Al went about his Monday landscaping jobs.
He noticed Morgan, the boss's wife, flirting with a 21-year-old employee named Steve Chappelle. Morgan looks at me and says, Steve knows what color underwear I have on.
And Steve's like, yeah, pink with black stripes. Right off the bat.
And when Al had a question about an assignment. I would call Morgan and Steve's there.
Steve's answering her phone. Why was this kid who mowed lawns and was barely old enough to buy a beer suddenly acting like the new man in charge? Kevin's sister Michelle remembered him as a quiet, unassuming young guy who'd done some work on her yard just weeks earlier.
This kid Steve could not have been more polite to us. So what would Kevin think now of his employee spending the workday at the pool with his wife and kids as Michelle observed when she took a drive by? I drove by her development and she was sitting out at the pool with Steve and the kids.
Okay, you see Steve sitting with her and you're thinking what? I thought Morgan was having another affair. It was no secret among those who knew the couple that Morgan had strayed before.
Could Kevin have suspected Morgan was at it again? And was that the final straw that drove him out? No way to know. He still was not taking calls.
And then five days after he disappeared, Kevin finally had something to say to everyone who knew him in the most public way possible. He posted an update on Facebook.
Status? Wants to be left alone. He wants to be left alone.
And some of his friends backed off then. You know, his friends also were looking for Kevin.
And then after that Facebook thing came up, they were like, this must just be another Morgan and Kevin fight. Maybe he just kind of had a nervous breakdown, or maybe he just had enough, needed a vacation for himself.
But to Kevin's immediate family, this Facebook update was far from reassuring. To them, it was an ominous red flag.
Every other update that Kevin had put on there had come from his cell phone, because it shows the little cell phone, and this one came from a computer. Which seems so odd.
The family knew that Kevin did everything on his cell. What's more, the wording in the text messages he'd been sending just didn't sound like Kevin.
For example, Michelle wondered,

when did he start calling her sis? In the pit of my stomach, I just felt something bad had happened to Kevin. And if the cops would not investigate, the family decided it was time to do some detective work themselves.
I'm afraid his wife and the new boyfriend are making a move right now to leave. They're leaving.

Coming up,

a confrontation. I said I'm not

okay with this. He just disappeared.

I don't believe you. What would it take to alert the police? Things just aren't adding up.
I said,

would you mind coming back to the police station? I do have a couple more questions for you.

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Results vary.

Courtesy of Roger Kiernos, Knight Law Group, LLP. I remember sitting at my mother's house and she just sang, like, I feel like the gates of hell are opening.
It was a Thursday afternoon, summer 2010, and a violent summer rainstorm had barreled through the towns ringing the outskirts of Philadelphia, bringing down trees and power lines. Almost a week had gone by since Kevin Mengel left his wife and kids.
People gathered at my mom's house. Everybody just sat there waiting.
Kevin's parents and siblings had not spoken with him, heard his voice, that is. The only communication he was making was on Facebook and through text messages.
I think I may have said in there, call me or one of the family members. And he said, I am speaking to a family member.
I'm speaking to my wife. And that should be enough for everybody.
But it was not enough.

Because now a bizarre and horrifying thought had begun to take root and grow.

The Mengel family suspected that all those messages were not coming from Kevin at all.

I left another message for him saying,

can you just tell me the name of the street that we grew up on?

Like, just tell me that and I'll leave you alone. The police initially didn't even consider Kevin a missing person.
But now the family begged them to take another look. We went back to the police again and pleaded.
We tried to think of anything. The kids are home alone.
She's not there. You know, anything that we could do to get them to go over there.
Detective Maurer agreed to stop by the apartment and talk to Morgan. And she seemed genuine, like she wanted to help me.
Morgan invited the detective in and told him the same story. Kevin had walked out on her and the kids, and she had proof.
Text messages in her own phone from Kevin, breaking it off. She had received a message from Kevin that he was leaving, and she showed me these text message exchanges, something to the effect of, are you kidding me? And he said, no, I'm done, I can't do this anymore.
The detective also spoke with Steve Chappelle, Kevin's young employee, who'd been hanging around the apartment complex with Morgan and the kids. He just seemed like a kid, a young kid.
He was 21 years old. And Morgan scoffed at the idea that they were anything more than friends.
She laughed and said, no, I'm a married mother of three, I'm 34, and he's 21. That's absurd.
There's no affair. Absurd is precisely what friends Mike and Noel would have said had they heard that.

They knew firsthand that Morgan had a long history of cheating, sometimes even with Kevin's closest friends.

She would tell me how they would have sex in her and Kevin's bed when he would go out,

how they would have sex in the cars, you know, the business cars. I said to myself, you know, she's not right.
There's something wrong with her. And Kevin's family? By now, they were sure Morgan and the young landscaper were up to something.
Michelle confronted Morgan directly. I said, I'm not okay with this.
Like, he just disappeared. Like, I don't believe you.
Like, I don't. Adding to their worry, they say Morgan had not let them see the three kids since Kevin disappeared, and they worried she might leave town.
They asked the detective if he would do surveillance on the apartment, but he said no. I said, based on the fact that we had a witness that saw him, the fact that I now know that Morgan and Kevin have a troubled relationship.
I thought that maybe Kevin really was just fed up and had enough of Morgan and left. So the Mengel family took the investigation into their own hands.
Brother Chris decided to stake out the apartment overnight. He brought a video camera with him.
Early Friday morning, he filmed

Steve Chappelle coming and going as if he now lived there, taking Kevin's place. And what was

strange, it looked as though Steve was packing up Morgan's truck. To Chris, it sure looked like

Morgan and Steve were getting ready for something. He has a bunch of crap with him.
Morgan has a

Thank you. Okay, yeah, they're getting in the truck now.
To Chris, it sure looked like Morgan and Steve were getting ready for something. He has a bunch of crap with him.
Morgan has a bunch of stuff, too. He frantically called the police looking for Detective Maurer.
I'm afraid his wife and the new boyfriend are making a move right now to leave. They're leaving.
They're leaving. Only, they didn't go far.
Chris followed them as they drove over to the landscaping business. It turns out the detective was already there.
He decided to go poke around, half expecting to run into Kevin back at work. She gets out of the passenger side and walks directly by me.
And then I walk over to Chappelle, who's still sitting in the passenger seat, and he's got a dead stare straight ahead. And there was something inside the truck that the detective thought was peculiar.
The back seat was full of clothes. I could see a laundry basket and bags and backpacks.
And he says, oh, Morgan's going to do laundry across the street. And I said, well, Morgan's got a washer and dryer in our apartment.
I saw it yesterday. Things just aren't adding up.
I said, would you mind coming back to the police station? I do have a couple more questions for you. And in that moment, as the detective turned his back on Steve, something unexpected happened.
Something Chris Mangle, still filming, caught on video. Steve jumped in the driver's seat, pulled out of the lot, and sped away.
That's him. That's a dude with a red hat.
Just Steve. Morgan walks over and sits down on a step,

puts her hands in her head and says,

oh my, maybe he did do something to Kevin.

Coming up.

Steve had said to me that he loved me and would do whatever it took to have me.

Morgan breaks her silence.

What had she been hiding? I'm floored and I'm like, well, why didn't you tell me this? This sounds so hokey, but three months before, I had a terrible nightmare that something had happened to Kevin, and that Kevin was hurt, and I woke up crying hysterically in my bed. Michelle Hopkins, Kevin Mangle's younger sister, was now in a waking nightmare.
Her brother Kevin had been missing for a week, and the young man who appeared to be having an affair with her sister-in-law had just fled from police. Why did he just steal her pickup truck and flee when I asked him to come back to the police station? The situation suddenly looked much worse than Detective David Maurer had thought.
He brought Morgan to the station and called his partner and longtime friend, Darren Sedlak. He said, can you get in here? Something's going on.
I'm not sure what. But Chappelle just stole Morgan's truck and fled and we can't find him.
We had no idea that it was going to turn out the way that it did. Their first priority was to find Steve Chappelle, who was now on the lam.
They tried tracking his cell, which was in the truck, but it was turned off. But Morgan's phone was in there and it was turned on.
She gave detectives permission to track it. So we focused all of our efforts on Morgan's telephone.
Meanwhile, Morgan was downstairs in the interview room as detectives tried to find out what Steve was running from. Do you think maybe Steve hurt Kevin? I don't know, but by his reaction today.

He takes your truck without your permission and, in my terms, flees the scene.

Absolutely.

Although Morgan had previously denied the affair with Steve, the much younger landscaper, she was now telling the detectives they were having a relationship,

a result, she said, of an unfulfilling marriage.

It was just a bad marriage.

Okay.

Thank you. the detectives, they were having a relationship, a result, she said, of an unfulfilling marriage.
It was just a bad marriage. A real bad marriage.
The yelling, the screaming, the fighting, the I can't ever do anything right. So tell us about your affair.
How did Steve treat you? Talked to me like I was a human being with feelings, paid attention to me.

And she repeated yet again how Kevin had walked out on her and the kids one week earlier.

He was leaving.

He wanted a fresh start.

And did you respond to him?

I said, are you kidding me?

He told me he was not kidding, and to tell the children that he loved them.

Now I have to ask, in the truck, I saw a bunch of clothes in the back of the truck. Who did they belong to? Steve.
He said he was taking his stuff his clothes that he had accumulated at my house home. He's been staying there? A few nights yes.
Did you ever think that maybe Kevin would come home and Steve would be there and there would be an issue? No, I hadn't thought about that.

And I said, if I get in a fight with my wife, I said, nobody's moving into my house.

As a husband, as just a sensible person, that, to me, that...

This poor judgment.

Poor judgment and a bad marriage was all Kevin's wife would admit to. But the family knew that Morgan had a son of a son of a son of a son of a son of a son of a son of a her face that you just believed her.
Whatever she said, you just believed her. One of her biggest lies, they say, was back when Morgan got pregnant before the couple was married and refused to tell the truth about it.
We were looking at her saying, you're pregnant. And she said, I am not pregnant.
And she would wear two girdles at a time and heavy sweaters. And I said to her, Morgan, did you tell Kevin? And she said, no, I just told him that I'm on birth control and it's causing my stomach to swell.

And when the baby was born, Kevin was in shock.

We got a phone call the next day from my brother Kevin hysterically crying, telling me that I'm an aunt.

Was he crying tears of joy?

I don't think so at that time. I think he was so scared.

And it caused the first real fight between my brother and I because I was so very disgusted by Morgan. So when Kevin went missing, the family had been convinced from day one that Morgan was hiding something.
And now the detective was too. After hours in the interrogation room, she gave the first hint that she knew more than she was saying about her young boyfriend, Steve.
Steve had said to me that he loved me and would do whatever it took to have me. And then last night he said he had an uneasy feeling.
He apologized to me and said it was his fault. I asked him what was his fault, and the only response I got was the entire situation.
You say Steve hurt Ken. At this point, yeah, I do.
Morgan asked for a cigarette break. Detective Maurer went outside with her.
She'd been talking all this time without a lawyer, and the detective wanted to keep the conversation going, hoping she'd reveal something.

And did she ever?

We're standing in the shade because it's still extremely hot and there's no air conditioning in the building because of that thunderstorm.

And she says, Steve told me that he hit Kevin in the back of the head with a shovel.

And I'm like, whoa, we run back in and I turn the recording back on at that point.

Morgan, you just told me something. Would you mind repeating that? Steve hit Kevin in the back of the head with a shovel.
Here was Morgan laying the blame on Steve, telling police he had attacked and killed Kevin at the landscaping garage on the day he'd supposedly left her and the kids. The detective was stunned.
That earlier sighting of Kevin alive and well in town, had it been a mistake? How long had she been lying to police? I'm floored and I'm like, well, you know, why didn't you, um, why didn't you tell me this? I said, when your, um, boyfriend tells you that he hit your husband in the back of the head with a shovel, you call the police. Are you trying to protect Steve? Not at this point.
Morgan said that Steve had only just revealed to her what he'd done, but the detective suspected he wasn't getting the full story. Hoping to trip her up, he asked her to write down a timeline of events for the week Kevin disappeared.
You gonna write it down? Mm-hmm. Most of what she wrote stuck to the story, but this was a strange detail.
She writes Snapple on one of her statements. I said, what does Snapple mean? Coming up.
I want to hear everything. You better start at the beginning, because the game's over.
A tough new interrogation and a new revelation. That single word Morgan had written involved a deadly surprise.
Who handed the Snapple to your husband? When Dateline continues. Own a 2020 or newer car or truck that's been in for repairs under warranty? You might have a lemon.
vehicles known as lemons sometimes slip through even the best automakers you don't have to settle for one

lemon law help is here to get you the compensation you deserve with millions recovered for car owners

they're known for big wins best part no out-of-pocket costs to you call now at 855-952-5252

or visit lemonlawhelp.com don't wait get the help you need today paid spokespersonid spokesperson. Every case is different.
Results vary. Courtesy of Roger Kiernos, Knight Law Group, LLP.
A true crime story never really ends. Even when a case is closed, the journey for those left behind is just beginning.
Since our Dateline story aired, Tracy has harnessed her outrage into a mission. I had no other option.
I had to do something. Catch up with families, friends, and investigators on our bonus series, After the Verdict.
Ordinary people facing extraordinary circumstances with strength and courage. It does just change your life, but speaking up for these issues helps me keep going.
To listen to After the Verdict, subscribe to Dateline Premium on Apple Podcasts, Spotify, or at datelinepremium.com. The first break in the case of missing husband Kevin Mangle had come out of the blue.
Morgan, the wife, under questioning by police, revealed that her lover Steve had killed her husband in the landscaping garage. She was saying Steve had done the deed a week earlier and only admitted it to her later.
She hid his secret out of shock. I personally feel it's because you had some role in this.
I had no role in this. But Detective Maurer did not believe her.
He looked over the timeline she'd written out, puzzling over that one word, Snapple. Why did she write that down? The detective took a break, went upstairs to speak with his partner, Detective Sedlak.
And it was sort of like a mental slip. And then I asked him if he minded if I had a shot.
I wanted a chance to talk to her myself. And so the detectives decided to play good cop, bad cop with Morgan.
I want to hear everything. You better start at the beginning, because the game's over.

And now Morgan was about to offer a new piece to the puzzle, a truly shocking one.

It had started as a joke, she said, the two lovers imagining Kevin out of the picture.

Joking around how, you know what, we could take Kevin out.

Yeah, right.

What would happen, they wondered, if they put something in his favorite drink? He put nicotine, straight nicotine, in a Snapple that he bought. Following a recipe he found online, Steve cooked up some chewing tobacco into a toxic substance called liquid nicotine.
He then slipped the poison into Kevin's Snapple. And then who handed the Snapple to your husband? It was on the truck.
I did. Did you say anything to your husband like, that drink's for you? No.
The rest of us don't drink Snapple. Okay.
And then what? I left and got my kids off to school. But Morgan insisted she never expected any real harm to come to Kevin.

Never expected Steve would take it as far as he did.

And besides, it wasn't the poison that killed Kevin, but the blows to the head,

which Steve had done alone inside the landscaping garage.

I wasn't being serious.

Apparently it did turn into a serious conversation on his end.

And yes, I did hand Kevin a snap of bottle with nicotine in it. After that, I was not involved in it.
You guys killed someone. And you expect me to believe that you didn't talk about it? No.
I didn't want to talk about it. I looked at my kids and felt terrible.
So terrible that you made up text messages to his family members about him calling you and texting you. I did not do that.
Who did? Steve did that. It was Steve, she said, who used Kevin's phone to send messages to his family, pretending Kevin was still alive.
And Steve, and Steve alone, who had buried Kevin in some woods a few towns over. And where did he tell you that he took Kevin? Behind a high school, there was a development being built.
The interrogation had turned deadly serious. But the detectives thought that Morgan's demeanor was odd.
When Detective Maurer asked if he could take pictures for evidence, he says she didn't look like someone facing a potential charge of murder. And while I'm taking these pictures, she's actually smiling for the camera, which is weird.
And in the middle of his bad cop interrogation, Detective Sedlak says it was almost as if she was flirting with him.

My questioning was not nice by any means, and I just couldn't believe that she was smiling and looking up at me.

Is this funny?

No.

Am I laughing? You just smiled.

No, I didn't.

The detectives felt they had enough.

They issued a warrant for Steve Chappelle, who was still on the lam. And Morgan? We handcuffed her inside of the interview room and told her that she was under arrest for the murder of Kevin Mengel Jr.
They sent a police officer to talk to Kevin's father. He said that we believe that your son has been murdered.
It was not easy to sit and listen to.

Kevin's three children were spending the day at his sister Michelle's house

when she learned that Kevin was not coming back.

Kevin's kids came in and they just came up and

they just started hugging me and they're like, what's wrong? They just, I think they knew. Michelle had known all along, she says, in her gut, that Kevin was dead.
But how it happened? Michelle could not believe what police were telling them. She remembered Steve Chappelle as that scrawny, unassuming guy who worked for Kevin Mowing Lawns.
In fact, he'd done some work on Michelle's yard just a few weeks earlier. Michelle felt badly when he told her he'd just had his wisdom teeth out.
I was so worried about him for the two days that he was there and to think what he did to my brother. And her sister-in-law? It felt impossible to take that in.
When I saw her mugshot, I didn't even recognize her. She just had a different look about her.
She's been in my life for 15 years and I didn't even know who she was. The next morning, detectives recovered Kevin's body buried in a shallow grave behind that high school, right where Morgan said it would be.
And the following day, Steve Chappelle was picked up nearly 2,000 miles away in Colorado. I still can't imagine him doing it.
I can imagine Morgan doing it. I don't know what they were thinking.
Figuring out what they were thinking was now the job of the county prosecutor, and it would prove to be more complicated than expected. Did she say you need to go dig a hole? Morgan had pointed the finger at Steve, but now he was back and about to tell a very different version of events.
On the day of the murder, she's texting him about, has the poison worked yet? And when it's not working fast enough, she says, couldn't you just pick up a shovel? The truth? Well, that takes us right back to where our story began. The tale of the texts has another chapter to come.
Coming up, who was the mastermind? Morgan? She used him as a pawn to do her actions. Or Steve?

He is a cold-blooded killer. A few surprises were still in store.
We were like, holy smokes.

Morgan Mangle and her young lover, Steve Chappelle, were both sitting in jail for the murder of Morgan's husband, Kevin. Morgan had confessed to playing a small part in the crime, helping Steve Chappelle come up with the plan to spike her husband's Snapple iced tea with poison.
Only it was a joke, she said, that was taken too far. What were your first impressions of her? Very good.
I mean, the allegation compared to the person I was speaking to did not seem to fit. Morgan's attorney, Jack McMahon, says the case for murder against Morgan was weak.
She wasn't at the crime scene when Kevin was killed and had no convincing motive for wanting her husband dead. In fact, financially, she was way worse off with her husband's death than she would have been with him alive because he was the lifeblood of the company and there was no life insurance.
You think that she sort of had some musings about, oh, I wish my husband wasn't around. I wish someone would take care of it.
I think Morgan was a person walking around with dynamite, so to speak, and with these musings and saying this to various people. And Stephen Chappelle was the match that lit that dynamite and exploded.
But somebody took action, and that person that took action was Chappelle. He is a cold-blooded killer.
A cold-blooded killer? He hardly looked like one when police picked him up in Denver and got him into the interrogation room.

He was meek. His voice was quiet and shaking with fear.
District Attorney Pat Carmody. He admitted the whole crime.
He said that he was in love with this woman and he thought this was the way to get her forever. Steve said Morgan was not kidding when she came up with the plan to kill Kevin.
She just wanted him dead and that she wanted to be with me forever.

And Steve said that after the murder, far from being scared, Morgan was grateful. Which is why the garage looked so clean when employees arrived for work that Monday morning after Kevin's so-called departure.
She walks in the garage, steps over her dead husband, kisses Chappelle, tells him to get a tarp, and let's get to work cleaning the scene. So now Steve and Morgan were pointing fingers at each other about who really planned the murder.
And the DA?

He believed Steve.

He offered him a lesser charge of murder to testify against Morgan and charged Morgan with premeditated murder, a mandatory life sentence.

I think she found the most gullible person she could.

She used him as a pawn to do her actions.

He held the shovel, but Morgan held the strings. So you think Morgan was in charge of this operation? 100%, I believe that.
Morgan had a way with men. She just did.
She had a way with men. And I think the same way that she had my brother, you know, under her spell, she had this kid as well.
And the DA says it was Morgan herself who had been sending those fake text messages to Kevin's family after the murder, not Steve. Cell phone tracking records proved it.
She's texting Kevin's family, assuring him that he's OK. He just wants to be left alone.
She's the most evil woman I've dealt with. Morgan Mangle went on trial in late January 2012, a year and a half after Kevin Mangle had been murdered.
But in addition to Steve Chappelle waiting in the wings to testify, the DA had something else, something extremely rare in a murder trial. A play-by-play of the crime, courtesy of text messages between Morgan and Steve as it happened.
We were like, holy smokes, there it is. It's right there.
The detectives had discovered the trove of messages during their interrogation when they pulled Morgan's phone records looking for Steve. We knew the exact time of death.
We knew how it happened. And so we were floored.
The texts are chilling.

Four hours before the murder, Morgan texts Steve.

We ready, she types.

Steve responds, yep, at the shop now.

Then a half hour before the murder,

Morgan asks Steve about the poison snapple.

He drinking it, she asks.

Steve writes back, yeah, kinda,

really just waiting for him to bend over.

I have a shovel in my hand. Ha ha.

Morgan's response, nice, babe.

Steve doesn't reply. Morgan writes, you backing out?

There's a gap there where nothing happens.

And she then gives him the final taunt, you backing out.

And when she says that, he texts back, it's done, get here now.

These text messages don't even seem real. Like they don't, they just don't seem real.
As incriminating as those messages sounded, Morgan's defense was ready to press her case in court, claiming she was no murderous mastermind. I'm not so sure, even to this day, that she had a fully formed belief that Stephen Chappelle was actually going to do this.
But the defense never got a chance. A few days into the trial, a police officer said something on the stand, hearsay that could prejudice the jury, and the judge sent everyone home.
Chester County judge declares a mistrial in a love triangle murder case. For Kevin's family, the delay was torture.
More waiting for answers to questions they never wanted to ask. I wanted to know if he knew it was happening.
I wanted to know if he begged. Why did you want to know? Kevin was so sweet and kind.
And I know he must have been so, so scared. The story of those final moments could only be told by Steve Chappelle.
But even from jail, as they awaited their fates, Morgan was trying to keep him quiet. She wrote him a letter saying she had given birth to his twins.
So her game plan was, if he thinks we have kids together, he's not going to rat me out. Yes, and she would always ask him that in letters.
Have you figured out who has a better chance to get out of here? I need you to do this for me so I can raise our children. Except, of course, it was another lie, another manipulation.
In February 2013, the prosecution and defense were back inside the Chester County Courthouse for Morgan Mengel's retrial. Steve was set to testify.
But then, another surprise. The day the testimony was set to begin, Morgan stopped the trial from happening and changed her plea.
She admitted to first-degree premeditated murder. Even her own attorney was stunned.
I believe Morgan saw the handwriting on the wall. She realizes that whatever action she took resulted in his death and resulted in Chappelle killing him.
Steve was sentenced to 40 to 80 years. And Morgan, life without parole.
For the Mengel family, there is finally some justice, they say, in knowing Morgan will remain behind bars forever. I want her to be in jail for the rest of her life.
I want her to know that I'm going to be there when her daughter walks down the aisle.

I'm going to be there when her daughter has a baby.

I'm going to be there with her sons when they meet their wives and graduate from high school.

I'm going to get to see all of that.

She's not.

She's in hell.

And she's going to live this way for the rest of her life.

That's all for now. I'm Lester Holt.
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