Detectives are now sifting through eight hours of surveillance video from a Moscow gas. A clerk there spotted the now infamous white Hyundai Elantra that police identified as being seen near the home where four University of Idaho students were stabbed.

An overnight assistant manager from the station told Fox News Digital that she's been reviewing the tapes over the past few days during her downtime on the graveyard shift. She recognized the white sedan passing by at 3:45 a.m. on the night of the murders. She said the car drove by "real quick" and turned down a side street off Highway 8. 

The clerk sent a photo of the car and video to an email address police set up to receive tips, and a few hours later, detectives gathered the footage.

Joining Nancy Grace today:

• Dale Carson - High Profile Attorney (Jacksonville), Former FBI Agent, Former Police Officer (Miami-Dade County), Author: "Arrest-Proof Yourself"
•  Caryn Stark - NYC Psychologist; Twitter: @carynpsych, Facebook: "Caryn Stark"
•  Sheryl McCollum - Forensic Expert, Founder: Cold Case Investigative Research Institute in Atlanta, GA; Twitter: @ColdCaseTips 
•  Irv Brandt - Senior Inspector, US Marshals Service International Investigations Branch; Chief Inspector, DOJ Office of International Affairs; Country Attache, US Embassy Kingston, Jamaica; Author: "Solo Shot: Curse of the Blue Stone" available on Amazon in January; Twitter: @JackSoloAuthor  
•  Chris McDonough - Director At the Cold Case Foundation & Former Homicide Detective; Worked over 300 Homicides in a 25-year career; Host of YouTube channel -  The Interview Room.   
•  Dr. Priya Banerjee, M.D.  - Board Certified Forensic Pathologist, Anchor Forensic Pathology Consulting
•  Stephanie Pagones - Crime Reporter, Fox News Digital, Twitter: @steph_pagones
•  Sydney Sumner - CrimeOnline Investigative Reporter