Welcome back to current affairs, our show about the cases of love gone fatally wrong that are in the news right this very minute.

If this is your first love murder episode, tune back in on Wednesday for our deep dive main full-length episodes.

Tonight, we're diving into a murder case

that reads like a twisted thriller, complete with tracking devices, stage crime scenes,

and a family conspiracy that ended in cold-blooded murder. Picture this. A father of three

drives nine hours through the night believing he's about to reconcile with his wife and bring his family

home. Instead, he's walking into an ambush orchestrated by the very people who should have

protected those children from trauma. This is the story of Matthew Ristelli, whose final journey

from Temecula, California to American Fork, Utah became a high-tech death trap. The 42-year-old outdoor enthusiast thought he was

rescuing his marriage. In reality, every mile he drove was being tracked by an Apple Air Tag hidden

in his truck. Let's set the scene. June 24, Catherine Ristelli packs up her three children and

leaves California for what she calls

a breather at her mother's house in Utah. The marriage had been rocky since the pandemic hit,

with mounting financial pressure. Catherine complained of mental health issues and had been

considering divorce. She was apparently worried about losing custody of their children,

but then the story takes

a sinister turn. While Matthew believed his wife just needed some space, Catherine and her mother,

Tracy Grist, were plotting something unthinkable. Their search histories tell a chilling tale.

Grist researching Utah gun laws and the Dan Markell murder case, which we have reported on extensively.

Well, Catherine Googled spousal homicide and bizarrely what attracts mountain lions to humans.

The plan crystallized with disturbing precision. Catherine would fake an ankle injury, claim she couldn't

drive, and lure Matthew to Utah. They'd shoot him the moment he walked through the door, then

...