Cold Case Files: Dead West

When Pam Shelly, 31, is found in her Cuero, Texas bathroom with a fatal gunshot wound to the head, her death is initially ruled a suicide. Yet a tenacious investigator's instincts and his suspicion of foul play eventually cracks the case wide open.

When Dan Lavigne, 52, is shot dead on his porch in Rapelje, Montana, 2002, deputies find no shortage of suspects. What follows is an 8-year quest for justice that stretches across three states before police finally unmask his killer.

Carolyn Jansen, 43, is found dead, stuffed into a duct-taped container in Aurora, Colorado. Detectives have two suspects but no clear way to tell who is the killer. Forensics, and a fearless DA, will finally reveal her murderer.

When beloved 64-year-old Sherry Black is murdered in her rare-books store in Salt Lake City, investigators suspect theft as the motive. The case goes cold until her daughter teams with a wily investigator to bring her killer to justice.

In 1987, 28-year-old Carol Murphy is found dead in a wooded area of Boulder, Colorado. It will take 20 years and a new technology to finally solve her murder.