Cold Case Files

Authorities search for a 31-year-old real estate appraiser after he mysteriously vanishes while duck hunting in the Florida swamps.

After failing to show up for work, a 36-year-old computer programmer is found murdered in her small studio apartment.

A decade after her sister's disappearance, a devoted woman's social media campaign helps unravel a dark family secret tied to the case.

More than 25 years after a Pennsylvania teacher’s murder, cold case detectives discover new information with the help of DNA technology.

The reexamination of a university student's unsolved murder helps authorities connect the dots on a string of vicious killings in the 1980s.

A 23-year-old teacher and former beauty queen's disappearance after going to confession leads detectives to investigate the town's local church.

A fatal hate crime goes unsolved for 30 years until a determined investigator vows to bring the killers to justice.

A genealogy website and advancements in DNA technology gives investigators valuable insight on the homicide of a Denver radio intern.

The murder of a young woman whose body was discovered on Easter Sunday in 1992 goes unsolved for over 20 years until a DNA breakthrough reopens the case.

A lack of answers in the homicide investigation of a 15-year-old victim leads to rumors surrounding the girl’s younger sister.

When a beloved schoolteacher's murder creates suspicion around her ex-husband, cold case detectives work together to find the true killer's identity.

A 1972 homicide case involving a young woman opens back up after the emergence of genetic genealogy potentially provides answers.

Nine years after a violent home invasion, authorities turn to DNA technology to create a sketch of the masked killers.

The unsolved murder of a young woman finds closure when a convicted killer's recorded phone call provides investigators with critical evidence.

Nearly two decades after an abduction from a restaurant led to five bodies in an oil field, detectives find answers in a napkin and cashier box.

Utilizing genetic genealogy and a cigarette, detectives solve a 35-year-old homicide case involving a young mother found murdered on New Year's Day.

Decades after the tragic murder of two sisters in Texas, an informant comes forward with valuable information about the killer's identity.

The reopening of a homicide case involving a 19-year-old woman leads detectives to the bodies of two other victims and a serial killer's confession.

Forty years after a mother's murder, investigators discover a vital clue hidden in the crime scene photo: a bloody message written by the victim.

A married couple seemingly dies in a mobile home fire, but a closer look at the bodies and the disappearance of two teenage girls indicates foul play.

When a beloved Missouri beauty queen is found slain, suspicions fall on the son of a wealthy local family, but it takes years to crack the case.

​​Decades after a missing teenager's bones were found in the woods, an investigator dedicates himself to proving that the boy was murdered.

A firefighter’s death in a blaze at a college turns into a decadeslong murder case when authorities discover that an arsonist is to blame.

Investigators use DNA evidence to solve the 1981 homicide of a young woman whose family had been certain of the killer's identity for years.

Almost four decades after an 18-year-old girl's murder, a committed detective makes a shocking discovery involving a state-run facility in Oregon.

After vowing to uncover the truth surrounding her missing aunt, a Cree woman finds help in the form of social media and genetic genealogy.

Decades after a 3-year-old girl barely survives her family's brutal murder, detectives use DNA technology to catch the notorious "Hammer Killer."