1 - The Green River Killer

In 1982, the first victims of America's most prolific serial killer were found. The killer was at large for two decades, amassing a body count of over 50 women. Catching him took an advance in 'forensic microscopy' to indisputably link minute paint particles from the victims' clothes to the killer.

2 - Lady in the Barrel

In 1999, detectives investigate the body of a murdered woman found in a barrel along with an address book that had been soaked for over 30 years. Using a game-changing technology called spectral imaging, scientists recover the information from the address book, giving the cops the break they need.

3 - Left For Dead

4 - The Murdered Bride

5 - The Atlanta Bombings

6 - Murder in Vegas