Post Mortem | The Sneak Attack on Katlyn Lyon
48 Hours
CBS News
4.1 • 7.8K Ratings
🗓️ 4 February 2026
⏱️ 24 minutes
🧾️ Download transcript
Summary
48 Hours correspondents Anne-Marie Green and Erin Moriarty discuss the murder of Katlyn Lyon Montgomery and why her family turned to TikTok to demand justice. They explore why the case evolved from a possible drug overdose to a homicide investigation and why police first suspected Katlyn’s roommate. Erin also shares what it was like to be in the courtroom.
Transcript
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| 0:47.8 | Welcome to Postmortem. I'm your host Anne Marie Green, and today we are discussing the case of 28-year-old Caitlin Lyon Montgomery, who was found unresponsive by her roommate in October of 2022. |
| 0:55.5 | When she later died of her injuries to her head and her neck at the hospital, |
| 1:00.6 | the case evolved into a homicide investigation, |
| 1:04.1 | and it sparked a social media fight for justice from her family. |
| 1:07.8 | So joining me today's 48 hours correspondent Aaron Mor Moriarty, to talk about this case. |
| 1:12.8 | Thank you, Erin. It's another tough one, Anne-Marie, because Caitlin's mother described her as glitter. |
| 1:21.2 | She was such a loss. So it's a tough case to discuss. Remember, everyone, if you haven't listened to the 48 hours episode yet, head on over to your |
| 1:31.6 | podcast feed for the full audio version of it. You're going to find it just below this podcast. Go listen |
| 1:36.9 | and then come on back. All right. So let's get into this case. In the early morning hours of October 7th, 2022, |
| 1:45.4 | Caitlin Montgomery was rushed to the hospital after her roommate, Jacob Piercy called 911. |
| 1:51.5 | Now, and this is a heartbreaking part of this, it was her four-year-old daughter who first alerted |
| 1:57.6 | Jacob that her mom would not wake up. But Caitlin's home wasn't initially treated as a crime scene, |
| 2:05.6 | and that's because first responders thought that Caitlin probably overdosed on drugs. |
| 2:12.4 | At the hospital, doctors discovered the bruises around her neck. |
| 2:16.8 | So my question to you is, how did first responders |
| 2:19.8 | miss this? How did they miss that there was a possible strangulation here? Amory, this was a new one for me, |
| 2:26.9 | because as it turns out, she had been so recently attacked that those bruises didn't come out and they didn't see anything. And because |
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