Investigation Discovery +1 Sunday

Detective Rod Demery recalls a case in which a protective grandfather was found beaten to death on the roadside

Buying goods from home

Buying goods from home

Buying goods from home

Buying goods from home

A case in which a police officer was found dead in Illinois, but sordid details of the deceased cop's secret life began to emerge

A case in which LAPD investigators hunted a criminal behind the disappearance of expensive yachts, only to find the inquiry lead to much more than bat theft

When Nikki McPhatter doesn't show up for her usual work shift, her friends immediately worry - and point investigators to her online relationships.

Lonely musician Ray Merrill thinks he's found his dream woman in Brazil through an online dating website

A single mother is found beaten and strangled in her own home with her four-year-old son present. The investigation that ensues quickly uproots the community

In rural Missouri, a hunter is found murdered in his car near the popular deer trails. Was this a hunting accident gone wrong, or something more sinister?

The case of 19-year-old Logan Schiendelman, who vanished after a night out. When authorities found no evidence of foul play, they examined his family's controversial past

A case in which transgender teen Sage Smith went missing. The investigation turned up evidence that forced detectives to look closer into Sage's inner circle

When the body of a young woman is discovered in the woods, investigators are faced with a difficult decision if they're to solve this hauntingly familiar murder

An active-duty soldier dies in a brutal attack during a night out with her unit. Police determine if a secret fear she told her mother is the motive for her murder

The case of 40-year-old Rachael Anderson, who disappeared shortly after calling a friend regarding a home improvement project

The case of college student Jessica O'Grady, who vanished late one night. When another woman disappeared without trace, locals wondered if a serial killer is on the loose

The case of physical therapist Holly Cantrell, who vanished in January 2017 in McAlester, Oklahoma

As the case sparks a civil war in Boston, some dub Karen 'America's Happiest Murder Defendant.' At trial, humiliating texts shock the courtroom

A young man is gunned down in his prime in front of scores of witnesses - but what should have been an open-and-shut case turns into a web of mystery

A husband heads down a dark and violent path, ending in the brutal murder of his own parents. His daughter and wife want to know why

Brandi Mathews goes missing, and only her mum seems interested in searching for her. When her remains turn up years later, a tipster leads to a break in the case

The bludgeoned body of a young woman found floating in the Ohio River in New Albany, Indiana, propels a 20-year investigation

A case in which phones are examined for communications between persons of interest. On another case, detectives contemplated whether the suspect's family was hiding something

Veteran homicide detectives and forensic experts uncover new leads and bring new life to Tulsa County's old and mishandled cases

The host recalls a wave of late-night sexual assaults in Phoenix that appeared to be the work of a serial rapist targeting women in their homes as they slept

When Jamey Walker is kidnapped and murdered in the spring of 1981, her mother Eleanor dedicates the rest of her life to finding the killer