Cold Case (season 4)

A 1995 massacre at a shopping mall is reinvestigated when video evidence is found in an air shaft that indicates that the two shooters, who committed suicide at the scene, may have had a third accomplice who escaped.

The team reopens the 2004 case of a missing veteran of the Iraq War when her prosthetic arm is found in a river.

When the remains of a Sandhog miner who disappeared in 1948 are found in a subway service tunnel, the team is prompted to reopen the case, and find evidence that the victim might have been murdered for being a union activist.

The team reinvestigates the 1982 case of a newborn baby who died under suspicious circumstances, which were originally reported as Sudden Infant Death Syndrome.

The team reopens a 2003 case in which an autistic boy's parents were shot in their car when Lilly's boyfriend brings her information that the boy might have witnessed the murder.

The team reopens the 1958 case of a popular disk jockey when they discover audio evidence that suggests someone may have arranged his murder to look like a suicide.

When new evidence of a murder case from 1979 is found, Det. Jeffries, who worked on the case as a rookie cop, sets out to find the killer, fulfilling the promise he made to the victim's daughter twenty-seven years ago.

When an undelivered letter with a missing child's handwriting on it is found, the team is prompted to reopen the case of an eight-year-old girl who disappeared in 1975.

The team reinvestigates the unsolved 1989 murder of a woman shot in an alley when the victim's video dating tape shows up in the apartment of a man who committed suicide.

The team reinvestigates the 1968 death of a policeman who was shot in his patrol car when a con man looking for an early release claims that the cop was dirty. Upon investigating, however, the team discover something else entirely.

When the murder weapon used in the 2000 murder of country singer, Truck Sugar is found, Lilly must travel to Tennessee with a reluctant Scotty in tow to reinvestigate the case. They soon discover that Truck was on the cusp of his big break.

When a video clip of a missing student is found on the Internet, the team reinvestigates the case of James Hoffman, a gifted seventeen-year-old boy who disappeared just the year before, in 2006.

When a fingernail is found underneath the diving board of a pool where a drowning occurred, Lilly and Scotty reopen the case and investigate the 1996 family gathering during which the victim Lauren Williams (Donna Mills) died.

The team reinvestigates the case of Skill Jones and Madison Reed, two teenagers who were fatally shot in different parts of town on the same day in 2002, at precisely 8:03 AM.

When remnants of a bomb are found during remodeling of an old house, the team reopens the case of a married couple who died there in 1981, in what was thought to be an accidental gas leak.

Lilly reopens the 1964 case of a murdered seventeen-year-old girl who was killed the day after giving birth to a baby girl in a home for unwed mothers.

When human remains are found in a dumpster, the team reopens the 1984 case of a missing teenage boy who dreamed of becoming a dancer against his father's wishes.

When a station wagon with the bones of a murder victim inside is found at the bottom of a lake, the plight of a homeless family who once lived out of the car in 1999 becomes the team's focus during their investigation.

The father of a young boy who was raped and murdered in 1987 claims responsibility for pushing a sex offender off a building, and vows to systematically kill another person every day until the team can solve his son's case.

When an anonymous murder confession is found in a modern art exhibit, the team reinvestigates the fatal drug overdose of Rainey Karlsen, a sixteen-year-old cheerleader in 1997.

The great grand-niece of Frances Stone, a woman who was murdered in 1919 asks the team to reopen the murder in order to reveal the truth behind the incident.

The FBI asks the team to reopen a case involving the 2005 murder of longshoreman Mike Chulaski, whose death might be related to a Russian human-trafficking ring the FBI is trying to bring down.

When a nurse confesses to six incidents of mercy killing, the team reopens the 1998 case of Jay Dratton, a terminally ill businessman who died while under the nurse's care, and discovers he had made many enemies throughout his career.

The team reopens a 2006 triple homicide when Kim Jacobi (Ellen Woglom), the only survivor of the shooting, begins to remember details about the night her entire family was gunned down.