Hi Park enthusiasts, I'm your host Idelia DeAmbra and today we're taking you to one of

North America's most well-known national parks, Yosemite National Park.

Yosemite is best known for having one of the tallest waterfalls in the world.

Yosemite falls, and along with that there are tons of towering granite rocks, lush valleys,

and what feels like never-ending forests of giant Sequoias that shoot up into the sky.

One really amazing spectacle of this park is how sunlight plays tricks on what you see.

There are specific times of day where the notorious granite monolith, El Cap, is lit up blood

red and fiery orange, and those colors show up because of how the sunlight reflects off

of the rock face and in nearby waterfall.

Thousands of visitors from around the world come here every year to see that site and others,

but the story I'm going to tell you involves a group of women visiting the park in 1999.

What happened to them and the investigation that followed would be as tricky to understand

as the illusions the sun casts on El Cap itself, and the colors of blood and fire really

were flowing from Yosemite at the hands of a homicidal predator who'd been lurking in

the mountains of California for decades. This is Park Predators.

In February 1999, Carol's son's life was as normal as anyone could hope for.

Married for 21 years with four kids, Carol was happy being a stay-at-home mom and active

in charity work while her husband Yens worked as the president of Carol's family business.

According to the San Francisco Examiner, Carol and Yens had adopted the three youngest of their

four children from Argentina, and while they were down there they made good friends with the

poloso family. In fact, their teenage daughter Julie became such good friends with the polosos

teenage daughter Sylvina. That in 1999 when Sylvina decided to study abroad in America,

...