When a college student disappears, police uncover the trail of a serial sex offender and fear the worst. In the US, a double homicide leaves a trail of digital evidence that points to a jealous ex-boyfriend.
In the US, a sister tracks down her brother's killer by becoming an amateur sleuth, and in the UK, CCTV is the main witness to identify the killer of a mother of four.
In the UK, a young woman fails to come home after a mysterious date. Her worried family desperately searches for her, only to discover a devious attempt at a cover-up. In the US, a young mother is found dead in a house fire.
A financial crash sent Gary Hilton's life into a downward spiral that would culminate in him taking the lives of four innocent victims.
Jason Scott was a master of disguise, but he held many secrets: at night, he was a serial home invader and a killer linked to five cold-blooded murders - including those of two mother-daughter pairs.
Matthew Hoffman was a seemingly ordinary tree trimmer in the sleepy town of Mount Vernon, Ohio, but he concealed an obsession with trees and a brutally violent side.
"Murder in the Snow" is the story of Traci Hammerberg and how her murderer evaded detection for decades.
In 1981, the body of Sylvia Quayle is discovered by her father in her Colorado home: she had been sexually assaulted, stabbed and shot. After a false confession and decades of investigative work, science breaks this case open.
This episode follows how with the help of familial DNA detectives were able to track down a serial rapist.
In 1993, a teen is kidnapped and raped. A forensic genealogy company is able to track down the suspect.
James Robertson is considered one of the most volatile, dangerous men in the U.S. prison system.
Having committed over 27 assaults on correctional officers, Billy Tracy is one of the most violent offenders on death row.
After shooting two people, Rodney Berget kidnaps and sexually assaults a gas station clerk. Prison struggles to contain him: an escape expert, his final attempt involves the sadistic murder of a corrections officer.
Derrick Todd Lee, known as the Baton Rouge Serial Killer, terrorized Louisiana from 1992 to 2003, eluding capture for years. Eventually, advanced DNA testing would help police close the net.
When a series of men go missing, all roads lead back to a farm in New Hampshire and one woman. What detectives find in their search of the property leaves them speechless.
The suburbs of Seminole Heights, Florida was rocked by a series of murders by a disgruntled college graduate.
Many bodies found in the Louisiana bayou after Hurricane Katrina were the victims of someone more sadistic.
Michelle Wyatt is found strangled to death in 1980. Few leads arise until 41 years later, thanks to forensics.
DNA science finally identifies both killer and victim from a murder that took place back in Florida in 1991.
A young couple is murdered in Montana in 1956. In 2019, investigators use voluntary genealogical databases to catch the killer.