The Heartbreaking Murder of Stephanie Isaacson

The Heartbreaking Murder of Stephanie Isaacson

Published: July 22, 2026

Duration: 43:15

This transcript recounts the 1989 cold case of Stephanie Isaacson, a fourteen-year-old girl who was tragically assaulted and murdered while walking to school in Las Vegas. Despite an initial investigation that yielded few leads, the case was finally resolved over thirty years later through forensic genetic genealogy. Local detectives collaborated with Othram, a specialized laboratory, using a record-breaking tiny sample of DNA to identify the perpetrator as Darren Marchand. Though the suspect committed suicide years before he could face trial, the breakthrough provided long-awaited closure for the victim’s father and the community. This resolution was made possible by the Vegas Ju...