Voice of a Serial Killer - Episode Guide

In previously unheard Police confessional interviews, Robert Black reveals a chilling insight into the mind that murdered four young girls, and cast speculation on the fate of many more.

The confessions of 14 year old Kim Edwards and Lucas Markham reveal the shocking justifications for murdering Edwards's mother and younger sister.

After hearing the confessions of Colin Ireland, who murdered five men in two weeks, detectives have been haunted by the cold and calculating detail unlike anything they'd heard before.

When Nurse Elizabeth Wettlaufer walked into a police station, she confessed to murdering eight patients with insulin, but explained that she had the ultimate motivator- God.

When Ted Bundy agreed to a dead bed confessional interview with detectives whilst on death row, he revealed the horror and true expanse of the women he had murdered.

Nilsen murdered 15 young men, whose bodies he sought to preserve as companions before dismembering their remains for disposal down the toilet.

Few serial killers have divided opinion like Aileen Wuornos. Having gunned down six people, she confessed to her crimes. But this was not enough to save her from the green mile.

Two British serial murderers who killed a generation apart, but with a common goal - they killed to achieve an infamy that had eluded them in everyday life.

Pickton was a pig farmer who killed 49 women before feeding them to his hogs. He was caught when an undercover police officer was placed with him as a cellmate.

Ridgway remains one of the most prolific murderers in U.S. history. He evaded capture for decades, even killing prostitutes while his young son waited in the back of his car.

Colonel Russell Williams is one of the deadliest murderers the UK has ever known. Yet, because he committed his crimes in Canada, few people have heard of him. This is his story.