We examine two notorious abduction cases. The first case is the Graeme Thorne ransom kidnapping at Bondi in 1960. Thorne, aged eight, was the son of winners of the Sydney Opera House Lottery.

In 1999, eight bodies are found in six barrels filled with acid in a former bank vault in rural Snowtown, 50 kilometres north of Adelaide.

In 1981, the headless and fingerless body of 19-year-old Kim Narelle Barry was found dumped in the bush at a mountain lookout near Wollongong, south of Sydney.

The small hamlet of Greenough, near Geraldton in Western Australia, some 400 kilometres north of Perth, will forever be associated with one the most horrific murders in Australian criminal history.

Serial killer Leonard Fraser was suspected of killing at least five women over a 17 year period but took the complete truth about his life of crime to his grave.

We investigate the story of David and Catherine Birnie, Australia's most sadistic husband and wife killing team, who tortured, raped and murdered four women in 1986.

Sometime on the evening of 19 October 1990, the flamboyantly gay Sydney socialite Ludwig Gertsch was strangled with an elastic strap in the bedroom of his lover, Mr. Vincent Esposito.

CI examines the Dr. Victor Chang extortion murder as well as the horrific Jane Doe Case where a girl is found lying on the side of the road of an inner Sydney suburb wrapped in two plastic garbage bags.

John Paul Newman was a member of the New South Wales state parliament and a member of the seat of Cabramatta.

The backpacker murder case in the Belanglo State Forest, south west of Sydney, has entered Australian criminal folklore.

The bloodied, semi-naked body of 30-year-old Donna Wheeler is discovered by her estranged husband Keith Bond and 12-year-old son.

On the 6th October 1997, 14-year-old Lauren Barry and 16-year-old Nicole Collins disappeared while walking along a road near their home town of Bega, on the New South Wales south coast.

Sallie-Anne Huckstepp and Juanita Nielsen were iconic figures in the shadowy King’s Cross scene of the 1970s and 1980s. They lived dangerous lives – challenging the status quo of the period and met with mysterious and violent deaths.

In the late 1980s and early 1990s a series of violent murders took place near Sydney’s famous Bondi Beach.

Serial killer Leonard Fraser was suspected of killing at least five women over a 17 year period but took the complete truth about his life of crime to his grave.

We investigate the story of David and Catherine Birnie, Australia's most sadistic husband and wife killing team, who tortured, raped and murdered four women in 1986.

Sometime on the evening of 19 October 1990, the flamboyantly gay Sydney socialite Ludwig Gertsch was strangled with an elastic strap in the bedroom of his lover, Mr. Vincent Esposito.

The highest ranking police officer in Australia to be murdered, Assistant Federal Police Commissioner Colin Winchester was shot twice in the head at point blank range as he was getting out of his car outside his Deakin home on 10 January 1989.

Seven years after the disappearance of baby Azaria Chamberlain at Ayers rock, long before the murder of Peter Falconio on a remote stretch of highway in the Australian outback and two years before Ivan Milat begins his reign of backpacker murders.

The horrific story of killers Allan Baker and Kevin Crump who began their murderous spree in rural NSW by killing a complete stranger for $20, a packet of cigarettes and a couple of litres of petrol.

This episode revisits Adelaide's notorious Adelaide Family Murders case, where six young Adelaide men were murdered during the 1970s and '80s. The victims were found in random locations throughout the state, their bodies neatly cut into pieces.

A young Sydney man was found guilty of strangling his ex-girlfriend and stuffing the teenager's body in a cricket bag.

Sallie-Anne Huckstepp and Juanita Nielsen were iconic figures in the shadowy King’s Cross scene of the 1970s and 1980s. They lived dangerous lives – challenging the status quo of the period and met with mysterious and violent deaths.

In the late 1980s and early 1990s a series of violent murders took place near Sydney’s famous Bondi Beach.

On Easter Sunday 2002, on sleepy Norfolk Island in the south west Pacific, the body of 29-year-old Janelle Patton was found lying in an open field.