The 2005 death of aspiring actress Ashley Barnett, who boarded a cruise ship to celebrate her 25th birthday but died a day later, is investigated. Bill Lagattuta is the correspondent.

The murder of a millionaire's wife is investigated. Susan Spencer is the correspondent.

A murder plot involving a personal trainer and his girlfriends is investigated. Maureen Maher is the correspondent.

Investigation of a murder in which a mother allegedly implicated her own son. Peter Van Sant is the correspondent.

Actress Nikki La Rue discusses her encounter with a serial killer. Bill Lagattuta is the correspondent.

The separate murders of brothers Andrew and Robert Kissel are investigated. Robert was beaten to death in his Hong Kong home in November 2003 and Andrew was fatally stabbed in his Connecticut home in April 2006. Erin Moriarity is the correspondent.

John Ramsey discusses the 1996 murder of his daughter JonBenet.

The 1996 murder of Janet March in Nashville is investigated. Her husband, Perry, is the chief suspect. Bill Lagattuta is the correspondent.

An investigation into the link between the alleged suicides of two Georgia women, Jennifer Corbin and Dolly Hearn, who died 14 years apart. Corbin's husband, Barton, is the chief suspect in both deaths. Peter Van Sant is the correspondent.

The June 12, 2006, murder of Charla Mack in Reno, and the same-day shooting of family-court judge Chuck Weller, who was overseeing Mack's divorce from husband Darren, are investigated. Darren Mack is the chief suspect in both crimes. Troy Roberts is the correspondent.