Footprints in the Snow: A Seemingly Perfect Husband Harbors a Deadly Secret in a New "20/20"

They might have looked like the perfect couple, but a deadly mystery changed everything. All will be revealed in this week's brand-new episode of ABC's 20/20.

What's Happening:

• In an all-new episode of 20/20, Nightline co-anchor Juju Chang reports on the mysterious murder of a 40-year-old mother near a popular ski resort. Identified as Ashley Schwalm, the mother of two and wife of a local firefighter was found inside a charred SUV.
• While her death was initially believed to be an accident, a forensic investigation revealed a more sinister end to her life. Friends and family in her town of Ontario were shocked to learn that Ashley’s husband, a man who dedicated his life and career to helping those around him, used those skills to orchestrate an elaborate murder scheme.
• He also attempted to cover his tracks by creating an alibi built on technical footprints from phone records, text messages and even his own home-surveillance footage. It wasn’t until eagle-eyed detectives deconstructed his alibi that they were able to capture a killer.
• 20/20: Footprints in the Snow airs Friday, February 13 (9:00-11:00 p.m. EDT) on ABC, and streams the next day on Hulu and Disney+.

More ABC News:

• A Dancing with the Stars spin-off series is in the works, which will focus on finding the series' next pro dancer.
• Coinciding with the debut of FX's Love Story, ABC will be airing a new hour-long special telling the true story of JFK Jr. and Carolyn Bessette's relationship.
• ABC has released the first trailer for the Scrubs revival, reuniting J.D., Turk, Elliot, and a whole new generation of interns.
• The premiere date for the new season of Celebrity Jeopardy! – which will see previous celebrity contestants return for an All Stars competition – has been pushed back.