The murder of a wealthy widow sends shock waves through a small town. The victim's own records are the key to finding the killer.

Soon after Mardi Gras in Mobile, Alabama, an 18-year-old freshman is found shot to death in the woods behind campus. Detectives take a hard look at several suspects, but thirty years go by before a stunning confession cracks the case.

A husband and wife are found shot to death on a deserted stretch of highway; A young woman is thrown from a bridge near a freeway exit ramp.

Tara Grinstead disappeared in 2005. Police had no leads for solving her mysterious disappearance. Three months later another woman Jennifer Kesse went missing. Police had no hard evidence but they often wondered if these similar cases were related.

When young starlet Christa Helm was found brutally stabbed to death on a West Hollywood street in 1977, there was no shortage of suspects. Police learned she kept a sex diary that mysteriously vanished after her death. Could the diary be the motive?

Theresa Parker vanished one night after a recent separation from her husband, Sam, a police officer. When investigators find vacuum marks and then her blood on her car, Sam became their prime suspect.