Investigation Discovery +1 Today

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 two teenagers fell in love, only for their relationship to be forbidden by her father. The parent would stop at nothing to ensure his rules of honour were obeyed

A body-building attorney lands her own reality series. A year later, investigators used the show to map how she went from the spotlight to stabbing victim

A deputy sheriff turns in his badge to pursue a career in acting. When a shooting leaves him injured and his wife dead, police learn there's more to this court TV star

How a domestic dispute led to murder for a couple who seemed the perfect pair to all those who knew them

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

The murder of Carol Wardell in September 1994, by her husband Gordon. Plus, the 'honour killing' of 17-year-old Shafilea Ahmed by her parents Iftikhar and Farzana

The 2016 murder of best-selling author Helen Bailey by her partner Ian Stewart, who had earlier helped volunteers in her search

How the lives of two couples were unravelled by a series of betrayals, deceit and violence in a small town. How did a love affair result in a crime of passion?

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

True stories of people accepting the loved one they once lived alongside developed into a killer

When Clare Bradburn's ex confessed to a crime after 26 years, she thought she finally had justice. However, a legal loophole meant he was released immediately

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

The case of retired NBA champion Bison Dele, believed to have been murdered at sea by his older brother in 2002

A man's first wife died in an apparent burglary and years later, his second wife is killed. Police must determine if it's just a terrible coincidence

A copycat Zodiac killer terrorises New York City while keeping cops guessing his identity. It falls to veteran NYPD detectives to outwit him

The case of 24-year-old Meredith Emerson, who vanished after going hiking with her dog Ella in the north Georgia mountains on New Year's Day, 2008

The 1998 murder of 21-year-old Dawnia Dacosta, a choir singer and student studying to become a pediatric nurse practitioner

True stories of people accepting the loved one they once lived alongside developed into a killer

When Clare Bradburn's ex confessed to a crime after 26 years, she thought she finally had justice. However, a legal loophole meant he was released immediately

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