On Thanksgiving Day 2018, 29-year-old flight instructor and mother Kelsey Berreth vanished from her Woodland Park, Colorado condo. She'd been at the grocery store that morning. She'd texted her mom about Thanksgiving dinner recipes. She'd left cinnamon rolls on the stove for her baby daughter. Then she was gone.

What followed was one of the most gripping murder investigations in Colorado history... a missing person case that turned into a homicide investigation when a single blood smear on a toilet changed everything. And a critical break that came not from physical evidence, but from a nurse in Idaho with a secret she could no longer keep.

In this episode, Ed covers the full Kelsey Berreth case, including:

• How Patrick Frazee (her fiancé and the father of her daughter) planned and carried out a premeditated murder.