TICKET TO NOWHERE: A 13-year-old girl's mother is murdered and 20 years later she helps bring the killer to justice; THE PAPER ROUTE: and a dogged policeman gets to the bottom of the brutal murder of a 63-year-old newspaper delivery woman.

A woman's fall from a cliff in the Grand Canyon leads police to uncover a series of grisly murders, and investigators smoke out a killer when they find crucial DNA evidence on his cigarette butts.

LADY IN THE BOX: The murder of an Ohio woman in 1974 is solved more than 20 years later after police get a crucial clue--the woman's husband was seen building a coffin-shaped box about the time the woman disappeared.

After a 20 year unsolved murder spree, drifter Joseph Donald Ture is convicted of killing at least six females. Includes a recent interview with Ture, still professing his innocence, and explores what led to the case solution in 1998.

A woman is found murdered in a Michigan park, bound with police-grade, plastic handcuffs. When a gas station attendant is brutally murdered investigators struggle to indict their prime suspect despite eye witness testimony.

Part 1: Chula Vista,CA. In 1995, a prostitute is shot. By 2006, DNA and fingerprints involve two sailor "johns". Part 2: KC,MO has 900 cold cases, but their Crime Lab uses DNA and AFIS to aid the Cold Case unit clear them.

In the 1980s, a serial killer prowled the posh streets of Orange County. Police were unaware of the serial attacks until 1996, when DNA revealed the killer's secret and they linked four murders to a single DNA profile.

A thumbprint connects two separate murders and it is later discovered that the suspect had a strange fetish for women's lingerie. Then, an elderly woman is found murdered in her bed and the only evidence is a single strand of hair.