Investigation Discovery +1 Wednesday

Cynthia Smith and David Mueller's happy marriage was rocked by a tragic illness. When David died, detectives uncovered a sinister plot

Buying goods from home

Buying goods from home

Buying goods from home

Buying goods from home

A case in which the body of an unidentified teenage girl was found in a culvert near an Arizona freeway, close to the Mexican border

The case of an elderly couple brutally murdered in their Wisconsin home in 2010. Family members and neighbours subsequently received death threats

The murder of 24-year-old Washington Redskins star Sean Taylor, shot dead by an intruder in his Miami home. Investigators found plenty of associates with a motive

The story of millionaire Bob Harrod, who finally married his childhood sweetheart Fontelle at the age of 81 before mysteriously disappearing from his California home in July 2009

After a long battle with cancer, David Weedman was found dead in his home with a gunshot wound. Investigators soon turned their focus to David's best friends

The case of 42-year-old Miami mother Raquel Calderin, who vanished on her way home from work. The investigation led detectives into a disturbing family picture

The case of 26-year-old car dealer Christopher O'Brien, who in February 1992 took a man for a test drive and never returned to his Long Island premises

The case of big game hunter Bob, who was is fooled by a predatory con-artist and put a $1,000 deposit on a non-existent Thunderbird

The case of Diane Fortenberry, who was killed in May 2011 after returning to her family's home in Osakis during her lunch break and catching a man in the middle of a burglary

The death of Codi Joyce at a house party after a fight in 2015. In light of the fact nobody was ever charged for his murder, the documentary reappraises events of the night

In 1996, much-respected teacher Norma Luobikis was found stabbed to death in her home. Evidence suggested an intimate bond between the victim and her killer

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his mistress exposed his lies. Experts examine his behaviour

The disappearance of a young mother. Experts analysed her husband's statements for tell-tale signs of deception

In California, police face-off against a knife wielding bodybuilder. Plus, a wanted criminal draws an officer into a brawl in a sex shop

A wife wakes to find her husband dead outside in the snow, she calls 911. But when the police discover a volatile history, suspicions are aroused

In New York, a camera catches a murder, and a killer is brought to justice. In Texas, police use surveillance cameras to track down a gunman

In Wiltshire, 17-year-old Ellie Gould was attacked and murdered by her ex-boyfriend. Ellie's parents and friends speak about the tragedy

The case of Jodie Chesney, a 17-year-old girl who was out with friends in an East London park when she was stabbed by unknown assailants, in a case of mistaken identity

The death of Codi Joyce at a house party after a fight in 2015. In light of the fact nobody was ever charged for his murder, the documentary reappraises events of the night

In 1996, much-respected teacher Norma Luobikis was found stabbed to death in her home. Evidence suggested an intimate bond between the victim and her killer

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his mistress exposed his lies. Experts examine his behaviour