When a young mother and her baby are found brutally murdered in their Utah home, the horror sends shockwaves through the community. But the real terror lies in the motive—rooted not in greed or jealousy, but in a warped vision of divine command.

In this episode of Cold Blooded Serial, we unravel the disturbing story of Ron and Dan Lafferty, two brothers who claimed they were doing God’s will… and left a trail of blood in their wake.

Was it religious devotion—or something far more dangerous?