Cold Case Files investigates the pursuit and resolution of long-unsolved cases.
Near what's known as the hanging tree, the mutilated body of Timothy Coggins is found in late 1983; the investigation is thwarted and the case freezes for over 30 years, until a newly elected sheriff vows to bring the killers to justice.
In 1980, radio intern Helene Pruszynski is found brutalized in a snowy field; after 37 years of fruitless leads, investigators tap into a public genealogy website that leads them across the country to the killer they've been hunting.
On Easter Sunday of 1992, the body of missing woman Lisa Ziegert is found in a field; the investigation yields many leads, but no true suspect; after more than two decades on ice, the case is revived when DNA phenotyping puts a face to the killer.
Just after the last day of school in 1984, 15-year-old Reesa Trexler is found murdered in her grandparents' home; for decades, a stalled investigation only fuels the town rumor mill, pointing an accusing finger at Reesa's 13-year-old sister, Jodie.
Watch Series Anytime, Anywhere
In 1972, the body of Jody Loomis is found in the woods. Thirty-four years later, the killer's DNA is recovered from Jody's old clothing, but it isn't matched until 2018 when genetic genealogy helps point to one suspect.
Two masked gunmen commit a violent robbery and shoot Michael Temple Jr. in 2015, rendering him a quadriplegic for five years before his death. In this unusual cold case, DNA from a knife is used to create a sketch of the killer.
In late 1983, the bodies of five people abducted from a local fast food restaurant are found brutally murdered in an oil field. The main suspect is long believed to be a well-connected local man.
Aurora, Colorado: In 1984, three-year-old Vanessa Bennett becomes the lone survivor of her family's brutal murder. Initial investigators suspect a serial killer is at large, but decades pass before DNA narrows the suspect pool to one man.
In the heart of Cajun country, young mother Brenda DuPont is found murdered in her home in May 1988. The initial investigation sputters and turns cold, but Brenda's older sister Linda vows to solve Brenda's murder, no matter how long it takes.
In a city of eight million, landlord Bruce Blackwood disappears without a trace in March 2006. Though there is no body, the NYPD is sure this is a homicide and they, along with Bruce's brother Ed, spend the next nine years searching for answers and a killer.