Investigation Discovery +1 Saturday

The murder of father, son and fiance Tray Phelps, who was found beaten to death in his own driveway. When his killers were revealed, it shocked his small town

Buying goods from home

Buying goods from home

Buying goods from home

Buying goods from home

The crimes of Hannegret Donnelly, who battered husband Christopher to death with 78 visible injuries in Aylesbury, Buckinghamshire

A classic love triangle that lasted 16 years led to a shocking murder by Lakhvir Singh in 2009. Her method of killing gave her the nickname 'The Curry Killer'

A case involving a retired couple setting sail to Thailand. Just as their dream became reality, evil struck and a night of paradise turned into an unfathomable nightmare

A case revolving around a couple's disagreement about their love of water. One day, she decided to surprise him on a boat - only for her and the crew to never return

A case in which a newly engaged woman was discovered dead on New Year's Day. Investigators brushed her death off as suicide, but her family were convinced foul play was involved

Police were stumped when two young adults were found dead weeks apart. Disturbing text messages and contradictory statements suggested they were murdered

The case of Patti Adkins who vanished shortly after leaving her shift at a Honda factory. A police investigation revealed a secret relationship and plans for a trip

Documentary investigating the case of Toni Lee Sharpless a nurse and mother with a bipolar disorder who vanished in August 2009 after a night out in Gladwyne, Pennsylvania

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

How a tiny town in Maine with a population of 80 residents was torn apart when Mike and Valerie Miller were shot dead in their home

Britney Cosby and her girlfriend Crystal Jackson were looking forward to spending their future together. However, after their brutal murder in 2014, everyone was a suspect

Recently divorced Brian Cargill thinks he's met the woman of his dreams. However, Kimberly Cargill is a master manipulator, and her violent nature leads to murder

In 1992, when Jenn Drury learns about her father's brutal, cold-blooded murder, her first thought is that the cult has something to do with it

A man turns out to be a bloodthirsty monster attacking young women at will. It takes decades for the survivors to discover he is a serial killer.

When a Homecoming Queen and a Dairy Princess are murdered in Marathon County, Wisconsin, detectives question a pool of suspects, from strangers to frenemies

A case in which a woman was found murdered in her home in 1988. Police examined strife and infidelity in her marriage, but it was a surprise witness that led to the killer

A case in which a widower and father was found dead outside his home. Police suspected it was linked to shady business deals and a tip exposed dark family secrets

When popular college student Martin Roberts went missing, only a cryptic note was left behind. Two years later, his relatives were intent on solving the mystery once and for all

The case of 36-year-old Air Force veteran Michael VanZandt, who vanished in March 2016

In Pennsylvania, the body of a computer programmer is found submerged in a bathtub. Leads are scarce until detectives uncover a series of troubling voicemails