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Australian True Crime

Shortcut: The Yosemite Serial Killer (With a Twist) - ATC International

Australian True Crime

Meshel Laurie

True Crime

4.6979 Ratings

🗓️ 10 December 2025

⏱️ 16 minutes

🧾️ Download transcript

Summary

This is a "Shortcut" episode. It’s a shortened version of this week’s more detailed full episode, which is also available on our feed.


This week for ATC International, we travel back to 1999, when the locals of the Yosemite Valley were being terrorised by a serial killer with an exceeding brutality.


Between the months of February and July, Carole Sund, Silvina Pelosso, Juliana Sund and Joie Ruth Armstrong were all murdered by Cary Stayner. The full list of his crimes however, are still yet to be confirmed.


If you have been affected by anything discussed in this episode you can contact:

 

Lifeline on 13 11 14

 

13 YARN on 13 92 76 (24/7 crisis support phone line for Aboriginal and Torres Strait Islander people)


CREDITS:


Hosted and created by Meshel Laurie


Executive Producer: Matthew Tankard


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Transcript

Click on a timestamp to play from that location

0:00.0

Before we begin today's episode of Australian true crime, I want to tell you about a new project

0:04.5

we've been working on behind the scenes. It's called She Matters. It's a new podcast from

0:10.2

award-winning journalist and femicide researcher Shirel Moody. Each week, Shirel speaks with

0:15.3

families of women and children killed in Australia, sharing who they were, the joy they brought,

0:21.9

and the love they left behind. She Matters isn't a true crime podcast. It's about lives lived, lives loved and lives

0:28.7

lost. She Matters is produced by Dashmade podcasts in association with bravecasting media.

0:35.7

She Matters is available wherever you get your podcasts.

0:42.2

This week we travel back to July 22, 1999,

0:47.0

when every American news program was focused on the murder of Joey Armstrong.

0:52.5

Not only because of its brutality,

0:55.5

24 hours after her death, police were yet to locate her head.

1:00.1

And not because it occurred in one of their most famous and wholesome locations,

1:04.7

Yosemite National Park.

1:06.8

But because she was the fourth woman to be murdered there that year.

1:11.3

Yosemite, it seemed, had been the hunting ground of a serial killer for at least six months.

1:21.4

Then suddenly, just 48 hours after Joey Armstrong's murder, the FBI announced it had a suspect in custody and a confession.

1:31.0

Today I'm burden of proof. The FBI says it has a confession from a gunman suspected of beheading a Yosemite Park employee.

1:38.3

Is 37-year-old Kerry Stainer also a suspect in last February's triple homicide in the national park?

1:45.8

On the 14th of February 1999, 42-year-old Carol Sund, her 15-year-old daughter Julie,

1:52.9

and their 16-year-old exchange student, Sylvina Pelosi from Argentina,

1:57.4

checked into Cedar Lodge, just inside Yosemite National Park.

2:01.3

They were driving a rented Pontiac around California, checking out colleges.

...

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