A woman in Texas is killed and left in an old cellar. Experts hope new forensic science tools can help with finding the murderer..

Experts hope forensic science can solve the murder of Melissa Lee, which baffles Washington detectives.

Serial rapes spur fear in a city in North Carolina. Years later new forensic science finds the perpetrator.

The 17th episode revisits the murder case of Mary Davis from North Carolina. Mary was killed in 1987, but no viable suspect was found at the time of the initial investigation. Years later the DNA data from the crime scene had been entered into CODIS, but even that provided no answer. In 2020, new generation of detectives were assigned to the case with the help of forensic investigative genetic genealogy. 

Episode 16 examines the 1986 murder of a young mother Lisa Holstead from Michigan. Her case remained unsolved for decades as the investigators in the 80s didn't have the tools to solve it, despite collecting a significant amount of DNA. 14 years on, forensics helped to eliminate Lisa's boyfriend as a suspect and a male suspect profile was developed. Sadly, it had no matches in the database and Lisa's family had to wait another two decades for answers which came with the arrival of forensic investigative genetic genealogy.

Human remains found in 1994 start a long search to identify Suzanne Kjellenberg and a killer. New forensics may give answers.

Years after a murder in 1991, will determination and new forensic tools finally find Danielle Clause's killer?

In 1986, Barbara Carr was killed in a home invasion, while her husband escaped. Will new science finally unearth a suspect?

Susan Eads is found murdered in Texas in 1983. Decades later, can modern forensics finally find the perpetrator?

Will a new forensic science tool find the killer of Cathy Sposito, murdered on an Arizona hiking trail in 1987?.

In 1995 in Beaumont, Texas, the parents of Catherine Edwards find her body in her bathroom. The killer evades justice, that is, until forensic science catches up with him.

In Chandler, Arizona in 1991, an intruder viciously sexually assaults a woman in her own home. The case goes unsolved for decades until revolutionary science connects the dots.

In 1989, Krista Martin's life is tragically cut short because of an intruder. A friend finds her and calls 911, starting an investigation that will span four decades.

In 1978, the body of 16-year-old Krisann Baxter is found in Washington. Investigators try to find Krisann's killer, but don't find any answers.

In 1976, 19-year-old Janet Stallcup goes missing while on her way to a party. Eight days later, her body is found in her car.

Police solve the decades-old cold case of Clare Holman through new advancements in DNA technology.

Forensic investigative genetic genealogy solves the 1987 double murder of a young couple in Wisconsin.

DNA Detectives work to solve a murder of a great-grandma in Utah.

Police use new technology to find out who is responsible for a brutal rape.

In this compelling episode, detectives take on the unsolved murder of Sharon Hammack.