Investigation Discovery Thursday

When a single father was found murdered, the autopsy revealed discrepancies. Investigators had to decode digital clues to reveal a complex plan by a twisted killer

Buying goods from home

Buying goods from home

A case in which a man contacted US emergency services after finding blood inside a friend's home. Bloody footprints and a credit card trail led to the killer

How a family's search for new beginnings backfired when their moving back and forth from Hawaii to Alaska created an environment perfect for murder

Two sisters, who with little in common, coped with their overly protective mother in very different ways. In the end, there were very deadly consequences

Relatives of Steve Wright, the so-called Suffolk Strangler, reveal how his shocking crimes impacted the family. Were there any signs of his murderous intentions?

Relatives of serial killer Bobby Joe Long reveal how his shocking crimes impacted the family. Were there any signs of his murderous intentions?

The case of 21-year-old party animal Kortne Stouffer, who vanished from her Pennsylvania apartment in July 2012 after rowing with neighbours and friends

The case of 20-year-old Bear Diaz, who vanished one night with his belongings. Investigators contemplated whether there was a connection with another disappearance

When 31-year-old Navy veteran Nikki McPhatter was reported missing by her sister, detectives followed a trail that led them into the dark lair of a killer

When school-teacher and youth worker Anthony Davis was found killed in his bed police were stumped. However, it turned out that the killer was someone he tried to help

A case in which a wealthy psychiatrist and his son were shot dead. Investigators suspected a robbery until they realised that only a gun and a car were missing

The case of a 28-year-old man who broke up with his lover and disappeared soon after. As the police searched for him, a paper trail of suspicious text messages came to light

The crimes of parolee Evan Ebel, who murdered pizza delivery man Nathan Leon and Colorado prisons chief Tom Clements in March 2013

When Jim Durgan's body was found in Prison Valley, his estranged wife and his girlfriend offered no explanation. Further investigation unravelled a staged murder plot

A retirement community in Evansville is stunned when a 65-year-old man is found shot dead in his own home. Detectives quickly learn this is no ordinary homicide.

Brits love to escape the miserable weather for sunny skies and sandy beaches. But what happens when a trip to paradise turns into a bloody nightmare?

The case of high school student Brandon Wentzell, who fell for Clarissa Chistiakov online. However, Chistiakov was a fake identity and Jessica Boudreau led Wentzell to his death

The murder of a couple and their young daughter at home. After police askws the surviving child for clues, evidence took them into Philadelphia's criminal underworld

A case in which a man found his wife murdered at home, with evidence pointing to a robbery gone wrong. However, the investigation suggested the motive was more sinister than that

A case in which a wealthy psychiatrist and his son were shot dead. Investigators suspected a robbery until they realised that only a gun and a car were missing

The case of a 28-year-old man who broke up with his lover and disappeared soon after. As the police searched for him, a paper trail of suspicious text messages came to light

The crimes of parolee Evan Ebel, who murdered pizza delivery man Nathan Leon and Colorado prisons chief Tom Clements in March 2013

When Jim Durgan's body was found in Prison Valley, his estranged wife and his girlfriend offered no explanation. Further investigation unravelled a staged murder plot

A case in which a wealthy psychiatrist and his son were shot dead. Investigators suspected a robbery until they realised that only a gun and a car were missing