A cross-country road trip turned into one of the most widely followed missing person cases in recent memory.

Gabby Petito, a 22-year-old from Long Island, set out on a journey with her fiancé, Brian Laundrie.

But what began as a road trip quickly took a troubling turn as their relationship drew attention, communication stopped and questions began to mount.

As the search intensified, video evidence, police encounters and national media coverage revealed a timeline that left millions searching for answers.

Gabby’s remains were later found in Wyoming, while Brian Laundrie became the focus of an intense investigation that would ultimately lead to a chilling conclusion.