The fifth season opens with a case involving a high-school girl who was murdered in 1985.
A cold case involving a 1988 murder in Sunset Beach, Cal., is investigated.
A 1992 case involving the shooting death of a Maryland businessman is investigated.
A 1990s cold case involving a serial rapist in St. Louis is reopened.
Examining a cold case involving a San Diego postal worker who was murdered in 1972.
A mother's tireless pursuit for justice in her son's murder leads investigators to find a crucial clue.
A fortuneteller and her daughter are brutally murdered in 2005; a paper trail leads investigators to the culprit.