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10 Minute Murder
10 Minute Murder
Bingeable True Crime Stories with Joe. joe@10minutemurder.com
Sept. 10, 2026

Life Sentence at 14: The Carly Gregg Case

Life Sentence at 14: The Carly Gregg Case

Life Sentence at 14: The Carly Gregg Case Ashley Smylie was a 40-year-old high school math teacher in Brandon, Mississippi who was shot and killed inside her own home on March 19, 2024, and the suspect deputies arrested nearby was her 14-year-old...

Life Sentence at 14: The Carly Gregg Case

Ashley Smylie was a 40-year-old high school math teacher in Brandon, Mississippi who was shot and killed inside her own home on March 19, 2024, and the suspect deputies arrested nearby was her 14-year-old daughter, Carly Madison Gregg. Home surveillance footage drove the homicide investigation, an insanity defense, a nationally livestreamed trial, a first-degree murder conviction, and an appeal the Mississippi Supreme Court finally ruled on in August of 2026.

This one is about the people inside that house. A mother who buried one daughter and rebuilt an entire life around the other. A stepfather who still mouths I love you to the girl who shot him. A straight-A kid with a 30 on her ACT at 13 and burner phones hidden in her bedroom, and one week of medication changes her defense team built an entire insanity case around. There is a security camera hidden in a refrigerator that almost nobody talks about. There is a text message sent from a phone that should never have been in that hand. And there is a why that the courts have now formally closed and this family is still arguing about in public, out loud, on opposite sides.

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There's a house in Brandon, Mississippi with security cameras in the kitchen and out in the garage.

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And the family put them there because they were scared of somebody getting inside.

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On a completely ordinary Tuesday afternoon in March of 2024, those cameras recorded about an hour that nobody in the family saw coming.

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And the person they recorded was 14 years old and had never been in a minute of legal trouble in her life.

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[Music]

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[Music]

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Ashley Smiley taught math, a Northwest rank in high school in Brandon, Mississippi. And her own daughter was a freshman in that same building, which meant the two of them left the house together every morning and came back together every afternoon.

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And if you've ever had a parent working in your school building, you already know how that goes.

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She'd been teaching for nine years, five of them at Warren's Central over in Vicksburg.

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After she died, the district called her part of their Cougar family. And the people who worked next to her kept bringing up that she was good at the math.

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And also at the technology and the music and the artsy things that math teachers are supposed to be allergic to.

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She was good at all of that. She was 40 years old.

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Ashley had been through something that would flatten most people. Her younger daughter Natalie was born in 2012 with a rare genetic disorder.

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And the whole family relocated to Vicksburg to be closer to the specialized care that the baby needed. And Ashley's parents followed them there.

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And then Natalie died in September of 2013 at 18 months old. And everybody else still had to keep pushing on anyway.

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Carly was four years old. Her parents' marriage came apart in that same window. That's an enormous amount of grief to hand to a preschooler.

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Ashley started rebuilding her life. And she divorced Carly's biological father, married a physical therapist named Heath Smiley, who worked five minutes from the house.

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And Heath did karate with Carly and played video games with her. And there were dogs in the house. And by every account it was a warm place to grow up.

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If you had blindly walked into that house on a random Tuesday, you would have read it as a family that consciously put themselves back together.

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There was one thing in the house that never quite settled. And it was a revolver, a 357 magnum that Heath had given Ashley as a gift. And she kept it under the mattress in the primary bedroom.

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He told the jury later that she kept it there because she was afraid of Carly's biological father turning up at the house.

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He said on the stand that the man had struggled with addiction and the family never fully relaxed about that. The gun was supposed to protect her.

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Carly, meanwhile, looked like a kid who had come out the other side of it all doing great because she skipped third grade. And she scored a 30 on the ACT when she was only 13 years old.

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Which is a score that most high school seniors would hang on the refrigerator. And she played multiple instruments. And her middle school named her the student of the year.

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Underneath the report cards, there was a much older story running. Dr. Andrew Clark, the child psychiatrist, the defense brought in, told the jury that Carly started hearing voices somewhere around six or seven years old.

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And that depression showed up at about nine. And bipolar disorder and schizophrenia ran in her family. She started cutting at around 11 or 12.

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She also brought a Swiss Army knife to school and got transferred to an alternative school over it. By early 2024, there was an entire second life packed into that bedroom. Marijuana, vape pins and burner phones.

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And I want to emphasize the word burner because the average 14 year old is not running a phone operation. And this kid had multiple.

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Meanwhile, the friction with her mom was the most ordinary teenage friction there is because her mom Ashley didn't like the boyfriend and told her that she had to be 16 before she dated anybody and Ashley took away her phone as punishment more than once.

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Dr. Clark described that mother-daughter relationship as close and complicated at the same time, which I'm sure describes the majority of every single mother-daughter relationship in the history of ever.

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Then, one of Carly's own friends told Ashley about the stash. The other thing running underneath all of this was the medication and people still fight about this part online constantly.

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Dr. Clark testified that he diagnosed her with bipolar 2 and she had been diagnosed that February with depression and an adjustment disorder.

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A week before the shooting, she had a telehealth appointment and came off the searcher-learn because of the side effects. She had recently stopped taking an anti-psychotic and she started Lexapro.

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That same day, she wrote in a journal that she had a psychotic break and that she had talked to one of the voices in her head and that she sounded crazy.

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There was also a sketchbook in Green Inc and handwriting that did not look like hers. With the words, "Please help me on the page."

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And she told Dr. Clark she had no memory of writing it, which is absolutely terrifying. The state's experts pushed back on all of it and a forensic psychiatrist testified she did not meet Mississippi's legal standard for insanity and that her prescribed dose did not cause this.

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March 19 started out as a completely ordinary, normal school day. Teachers noticed Carly seemed grumpy and irritable and couldn't concentrate on anything.

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And she later said her memory went blank somewhere in the middle of that day. Ashley texted Heath about going grocery shopping after school and they drove home together like always and Ashley went into Carly's bedroom to search it for vape pins.

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The kitchen camera caught all of it. Carly left the dogs out back and brought the men again. And then she walked toward her parents' bedroom and she came back out with one hand tucked behind her back.

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She went into her own room where her mom was still searching. The camera picked up a gunshot, then screaming, then two more shots. Ashley did not survive.

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What the footage shows next is a 14-year-old walking back into that kitchen with her hands still behind her back sitting down on a bar stool and picking up her mother's phone and texting her stepfather from it, pretending to be her mom, asking if he was almost home.

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Then she called a friend over, telling her there was an emergency. Prosecutors told the jury that when that friend got to the house, Carly asked her if she was squeamish around dead bodies before walking her back toward the bedroom.

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At same friend later testified that Carly told her that she had shot her mother three times and had three more shots waiting for her stepdad.

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She also took the kitchen security camera down and hid it inside the refrigerator, which is the evidence tampering conviction.

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Heath got home a little after five. He told the jury that the gun went off in his face before that door was even open four inches and that it fired two more times while his hand was still on it and that he twisted it out of her hands.

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A bullet caught him in the shoulder. He testified that she was screaming, but looked terrified and that he's not even sure if he was her intended target.

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And he said her face looked like she had seen a demon. Carly ran out the back door and deputies picked her up near the house a little later.

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The trial ran five days that September and it opened with Heath's 911 call and the whole thing got live streamed nationally because Mississippi lets cameras into the courtroom.

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She had been offered a plea deal 40 years on the murder counts and the rest dropped. She turned it down. That was a bad decision.

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The jury was out about two hours came back guilty on all three counts and handed down two life sentences plus 14 years for the tampering.

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Her stepfather Heath sat through every day of that still supporting her and at one point he mouthed, "I love you" to her across the courtroom.

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Her grandparents and Heath now help run a nonprofit called Carly's Warriors that argues her sentence is disproportionate.

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The Mississippi Supreme Court affirmed everything on August 20th, 2026 and rejected all nine issues her appeal raised.

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The justices declare by one thing her supporters are holding on to, which is that Mississippi statute does not authorize life without parole for juvenile convicted of first degree murder.

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And what she is serving is life imprisonment, which leaves a door cracked.

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She's 17 now. Her biological father told People Magazine that she knew right from wrong. Ashley kept that revolver under her mattress because she was afraid of who might come through that front door.

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She never understood that the real threat was her mentally deficient daughter just down the hall.

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Thanks for listening to 10 Minute Murder, binge-abled True Crime Stories. Hello, I'm Joe, I'm the host, here's an email subject.

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Question about episode order. Hi, I'm new to the show and there's like a hundred episodes. So should I start at the beginning or does it not matter?

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My app has them newest first and I can't tell if I'm missing anything by not going back in order.

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Thanks at advance, Kayla from Green Bay, Wisconsin.

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First of all, thank you for finding the show and listening. If you think there are a hundred episodes, bless your heart.

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There are hundreds of episodes. There's a bunch. We're going to approach the 1,000 mark pretty soon, I think. Anyway, that doesn't matter.

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What does matter is it doesn't matter what order you listen to them in.

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Most people, I assume if they're not caught up, if they haven't listened to all the previous episodes, most people just kind of skip around. They find ones that they think are interesting based on the subject matter, the person involved or the title.

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There are a million different reasons why people choose what they choose. But most people think skip around a little bit. And then once you kind of catch up to all the episodes that you care to listen to from the previous episodes, you just check out the new ones as they come out.

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I think that's what most people do. But again, thank you for listening. And hey, if you are a brand new listener, you listening to me right now.

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If you're a new listener to this podcast, hit subscribe right now. And then please, all of you do me a huge favor. Go to 10MinuteMurder.com.

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Every one of you, 10MinuteMurder.com. If you've never been there before, check it out. I've got links to where you can listen to the show in all the places. There are links too, where you can follow the show on social media. There's a blog there.

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And also a place that you can email me. So please do that. 10MinuteMurder.com. And if you're enjoying this podcast, you're like, this is a cool podcast, but 10 minutes? I mean, how much of a story can you get for 10 minutes?

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And you just saw that I can tell you the whole story in 10 minutes. But if you do happen to want more information about different cases, not necessarily the same cases here on 10 Minute Murder, I do another podcast. It's called True Crime Blueprint.

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It doesn't come out as often as this one does, but I go much more in-depth with the episodes. They're much longer episodes. So check that one out, True Crime Blueprint. And that's going to do it.

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That's your episode for today. Thank you again for listening to 10 Minute Murder. See you next time.