S6 E1 • The Blacktown Boys

When the body of a local beauty queen is found in a farmer's field near Sydney, Australia, the entire country is riveted. Eyewitness accounts lead to John Travers, an out of control kid leading a notorious gang that terrorized the area. Police work tirelessly on the case, wrapping up their investigation with multiple raids to bring in the loathsome crew.

S6 E2 • The Love Slave Murders

Gerald Gallego, son of a convicted killer, and Charlene Gallego, honour student and musical prodigy, were a match made in hell. Preying mostly on young women, they raped and murdered ten people in counties across the western States between 1978 and 1980. The Gallegos earned the odious title of the first husband and wife serial murderers.

S6 E3 • The BTK Strangler

In 1974, a man identifying himself as the BTK (Bind, Torture, Kill) Strangler started a killing spree in Kansas spanning the next two decades. He managed to kill ten people while eluding an intense manhunt by police. After a 13-year lull, he reemerged in 2004 through a disturbing letter to the media that ultimately lead to his capture a year later.

S6 E4 • The Menthol Murderer

A week-long search for a missing 10-yr-old Indiana girl ends sadly with her body being discovered in a nearby stream. The ensuing investigation puts police through the wringer as they are misled by false confessions and stories of secret meth labs. DNA evidence eventually pins the crime on Anthony Stockelman and the community is finally able to achieve justice.

S6 E5 • The Wilderness Murders

US Coastguardsman Ricky Dale Hemphill and companion Charla Toma set out for a picnic along a river near Brookings, Oregon in the fall of 1979. A day later Ricky is found murdered and Charla is missing. A tip from a local hunter leads police to Edward Delen Warren, a former convict in the area trying to set up a religious retreat. What police uncover is a bizarre plot that will soon spiral out of control.

S6 E6 • The Woodchipper Wife Killer

In November 1986, a snowstorm rips through Connecticut, leaving wife and mother Helle Crafts missing. Her husband, airline pilot Richard Crafts, evades suspicion for weeks by claiming that Helle had run off with another man. Groundbreaking forensic work and an eyewitness to a gruesome scene involving an industrial-sized woodchipper, result in a conviction that shocks a community.

S6 E7 • The Slave Master

Three separate women, unrelated to one another, went missing from the Kansas City area in the 1980s and 90s. They all disappeared shortly after meeting a man online and coming to Missouri to meet him. Police suspected one man was behind the disappearances, and their surveillance of conman John Edward Robinson led them to gruesome evidence of the women's fate.

S6 E8 • The Abducted Atheists

American Atheist Madalyn Murray O'Hair and her family vanished in August 1995, leaving behind an ominous note claiming a family emergency. When the IRS started looking for some of the organization's missing money, they found a former employee with the motive to commit murder instead. Fellow Atheist David Waters was convicted and the complex case was finally put to rest.