"Halloween in a small town is cancelled indefinitely when a young girl is kidnapped and killed on her way home from a costume party."

"The death of an elderly couple, Edward \"Ed\" and Wilhelmina \"Minnie\" Maurin Ed in Washington state on Christmas Eve 1985."

"The case of a gruesome stabbing death of a bullied teenager remains unsolved for 27 years."

"A killer authors a book about his con-man past that becomes the key to solving a 29-year-old cold case of two high school sweethearts--and three other cold case murders--leading police to believe he could be the Zodiac Killer."

"College student Brad Perry shows up to work his graveyard shift at the gas station and is never seen alive again."

"The longest running cold case of a law enforcement officer in the United States was the murder of Sheriff's Lt. Joe Clark."

"When 18-year-old Shannon Siders' body is found in the woods, everyone in the small town of Newaygo, Michigan, becomes a suspect--but no one is convicted of the crime."

"Ten years after a 17-year-old girl is found strangled in the woods in small-town Kentucky, detectives uncover a terrible family secret."

"One family faces two unsolved murders of loved ones and authorities finally uncover the missing clue that leads to solve the case 13 years after the murders occurred."

"Two decades after a close-knit family's loving aunt is stabbed in her home, detectives return to the crime scene and discover a pivotal clue hidden in plain view."

"When 31-year-old real estate appraiser Mike Williams mysteriously vanishes while duck hunting in the Florida swamps in December of 2000, authorities suspect he accidentally drowned. For sixteen years Mike\u2019s disappearance remains a mystery. The case heats up when police receive a distress call from the victim\u2019s wife in 2016. Featuring interviews with detectives and the victim\u2019s mother as well as rare footage of the crime scene and recorded audio confessions with the accused, the episode explores how the disappearance unfolded into a sinister plot to cash in on millions of dollars of life insurance."

"When 36-year-old computer programmer Lisa Valdez fails to show up for work, her apartment manager finds her brutally murdered in her tiny studio. Her body is riddled with stab wounds, the walls are covered in blood. Evidence shows the killer cut off her long, dark hair, taking it as an apparent trophy. Detectives ask, could she be the victim of a brutal serial killer? Or was Lisa murdered by someone she knew? Clues left on an answering machine point to a co-worker who was known to have feelings for Lisa, but two bloody fingerprints left on a toilet seat clear him as a suspect, and the case goes cold for thirteen years. Things heat up when a detective gets a hit during a search of the state's DNA database, leading to an unsuspected person from Lisa's past."

"When Sherry Leighty goes missing in 1999, her family is left wondering how a dedicated mother of three could vanish without a trace. A decade later, the cold case heats up when Sherry's sister launches a social media campaign to help solve her sister's mysterious disappearance. An online tip unearths the killer truth and a sinister family secret. Featuring an interview with Shelly Leighty, who never gave up on solving her sister's case, along with rare home video of Sherry and her family."

"Twenty-six years after a schoolteacher's murder, cold-case detectives get a break when a relative of the killer uploads DNA to a public genealogy website."

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"On a bitter morning 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."

"Easter Sunday of 1992, the body of missing woman Lisa Ziegert is found in a field. The investigation yields hundreds of 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."

"When a beloved schoolteacher is found murdered in her Neptune, New Jersey apartment in the fall of 2009, suspicion is cast on her soon to be ex-husband. Long after the case goes cold, a detective embarks on a mission to help the man clear his name and track down the real killers."

"In August 1972, the body of Jody Loomis is found in the woods. 34 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--whose guilt must be proven in court."

"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."

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"When 13-year-old Jennifer Bastian is abducted and murdered in August of 1986, residents of Tacoma panic. This is the second young girl killed in five months. Convinced a predator is loose, police embark on a 32-year inquiry."

"The quiet town of Redding, Calif., is rocked by the disappearance of Frank McAlister, a teen with a recent cash windfall who leaves only a blood-stained car behind; 25 years will pass before someone makes a stunning on-air confession."

"When 19-year-old Tara Sidarovich goes missing from her Punta Gorda home, Florida police consider her a runaway; then her body turns up in a swamp; shocking prison recordings will send detectives on a nationwide hunt for her killer."

"When 34-year-old Freddie Farah is gunned down in his Florida grocery store, police urgently seek his killer; decades later, Farah's son will have a chance encounter with a cold case detective which brings the case back to life and exposes a killer."

"The 1964 murder of 9-year-old Marise Chiverella leaves the town of Hazelton, Pa., in fear; an intense manhunt yields numerous suspects but no killer; five decades pass before a student moonlighting as a genetic genealogist reignites the case."

"In 1977, Florida Nurse Deborah Clark, 23, is found brutally slain in her home; detectives unearth an affair, a jilted wife, and a web of money and power, but no true suspect; it will take 40 years and advanced DNA testing to expose her killer."

"When the body of a woman turns up in a field in Huntington Beach, Calif., in 1968, police simultaneously seek a killer and the identity of the victim herself; it takes 52 years for detectives to solve this dual mystery and expose a vicious predator."

"A 2007 cold case resurfaces when a detective reopens the investigation into the brutal killing of Audrey Giannotti, 20, in rural Pennsylvania; uncovering hidden secrets, he races against time to bring justice to a family desperate for answers."

"When night manager Rodney Castin is gunned down in the lobby of his hotel three weeks before Christmas, detectives scour Georgia for his killer; two decades pass before an informant's shocking testimony breaks the case wide open."

"When Susan Schwarz is found shot to death in her apartment in 1979, police suspect a robbery gone wrong; thirty-two years pass before a witness reveals a much darker motive that breaks the case wide open and leads to Susan's killer."

"When beloved mother and sister Janora Stevens is found brutally stabbed in her Tulsa, Okla., home, her family is bitterly divided and increasingly suspicious of each other; the case chills until a trail of tell-tale fibers leads cops to her killer."