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Serial Killers & Murderous Minds

MURDEROUS MINDS: Kaitlin Armstrong Pt. 1

Serial Killers & Murderous Minds

Crime House

True Crime

4.5713 Ratings

🗓️ 1 December 2025

⏱️ 51 minutes

🧾️ Download transcript

Summary

When Austin-based yoga instructor Kaitlin Armstrong met elite cyclist Colin Strickland, their relationship seemed passionate and driven by shared ambition. But behind the calm surface, jealousy simmered. When Colin reconnected with rising cycling star Anna Moriah “Mo” Wilson, Kaitlin’s insecurity spiraled into obsession — and ultimately, murder.
In Part 1, Vanessa Richardson and Dr. Tristin Engels unravel how Kaitlin’s deep-seated anxiety and fear of abandonment evolved into dangerous control. Through psychological insight and chilling detail, the hosts trace Kaitlin’s unraveling — from her unstable upbringing and toxic romance to the moment her jealousy exploded into violence.


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Transcript

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0:00.0

Hi, Crime House community. It's Vanessa Richardson. Looking for another Crime House original podcast to add to your rotation, you will love Clues with Morgan Absher and Kalyn Moore.

0:12.8

Every Wednesday, Morgan and Kalin dig into the world's most notorious crimes, clue by clue, from serial killers to shocking murders.

0:21.5

They follow the trail of clues, break down the evidence, and debate the theories.

0:26.3

It's like hanging out with your smart and true crime-obsessed friends.

0:29.8

Listen to clues on Apple Podcasts, Spotify, Amazon Music, or wherever you listen to podcasts.

0:44.3

Music. or wherever you listen to podcasts. This is Crime House.

0:49.3

We all get a little jealous sometimes, whether it's seeing our crush, flirt with someone else,

0:54.7

or hearing a colleague receive more praise than us at work, it's normal to want what someone

1:00.1

else has, or worry that what we have will be taken away. And most of us know how to keep those

1:06.2

feelings in check. But not Caitlin Armstrong. In 2022, 34-year-old Caitlin couldn't handle it when her boyfriend,

1:16.2

35-year-old Colin Strickland, started spending time with another woman, 25-year-old Anna Mariah

1:22.6

Wilson. Caitlin became fixated on their relationship, and soon her obsession became fatal.

1:30.3

The human mind is powerful.

1:45.0

It shapes how we think, feel, love, and hate.

1:50.0

But sometimes it drives people to commit the unthinkable.

1:53.0

This is Killer Minds, a crimehouse original.

1:57.0

I'm Vanessa Richardson.

1:58.0

And I'm Dr. Tristan Engels.

2:00.0

Every Monday and Thursday, we uncover the darkest minds in history, analyzing what makes a killer.

2:06.6

Crimehouse is made possible by you.

2:09.0

Follow killer minds and subscribe to Crimehouse Plus on Apple Podcasts for ad-free early access to each two-part series.

2:16.8

And if you can't get enough true crime,

...

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