Investigation Discovery +1 Sunday

How, seven years into their marriage, something changed between a husband and wife - and a dirty secret at work led to a deadly confrontation

In 1993 an officer was shot and killed during a routine traffic stop. The only witness was his young nephew. However, he was too traumatised to tell police what he had seen

Buying goods from home

Buying goods from home

In 2009, a Pennsylvania road rage incident ends with one man dead. Chris Anderson and Fatima Silva examine the case, determining whether it was murder or self-defence

The case of Patricia Rorrer, who is in prison for brutally murdering her former boyfriend's wife and baby out of spite

The 2007 murder of naval officer Cory Voss, by a hitman hired by his wife. Catherina Voss intended to cash in a $100,000 death benefit to share with her boyfriend Michael Draven

The case of vivacious single-mother Dana whose life was life cut short by someone close to her after she had juggled a boyfriend, a jealous ex-husband, and a secret lover

A case in which a gifted mathematician spiralled out of control after receiving shocking news. Writing a bizarre note involving eugenics, he devised a final 'solution'

The case of prominent businessman and rising political star Agustin Garcia who murdered his ex-girlfriend, Gladys Ricart, on the day of her wedding to another man

Detective Rod Demery recalls uncovering a fearful secret when the body of a young mother-to-be was found dumped in the shallow waters of a fishing pond

The case of Nicholas Cox, who was shot dead in November 2001 while on leave from the US Navy. Detectives initially found his blood-spattered car, but no body

How after three women died of the same mysterious illness, the hunt began to prove their deaths were no accident

When a man's body was dumped in a cemetery, the trail led detectives to question two very different sisters. They needed to determine how they were linked to this mysterious murder

The case of teenager Shaun Ouillette. The night after she vanished an anonymous letter led detectives into the frozen woods, where they made a shocking discovery

When Kay Weden's mother was found murdered in her home and the frozen remains of her boyfriend discovered in the mountains, detectives realised she was being stalked

The case of Sgt Floyd Moore, who was fatally shot in January 1986 after reporting a man he had seen acting suspiciously.

When the truth of a 10-year-old murder case finally comes to light, the revelation stuns the family, the community, and the investigators

A routine stop for speeding soon turns personal when a deputy comes within inches of death. A knife-wielding man takes a dozen children hostage on a school bus

In 1968, actress Victoria Vetri became Playmate of the Year. But, when Sharon Tate is murdered by Charles Manson, Victoria is haunted by the crime

A 17-year-old takes a deadly road trip that exposes the inner psychopath lurking within

A disturbed man goes on a furious rampage that leaves three women dead. A state-wide manhunt ensues, which yields a misogynistic criminal hell-bent on revenge

A nurse confesses the horrors she routinely inflicted on numerous elderly patients in Canada.

An Orlando, Florida, man fakes psychosis to avoid responsibility for killing his ex-girlfriend

The murder of retailer Harvey Fuson in January 2011. The 66-year-old was well-loved by his Tennessee community and his death shook it to the core

The 1992 murders of Tommy Griffin and his sister Connie Griffin Branham, both killed by shotgun wounds to the head

In 1997, in quaint Anne Arundel County, Maryland, a detective inherited a stack of cold cases. As he began to unravel each one, he uncovered a shocking common thread

In 1993 an officer was shot and killed during a routine traffic stop. The only witness was his young nephew. However, he was too traumatised to tell police what he had seen