Episode 2

In this episode, Ian Rankin explains that by the dawn of the 80s, the only hope for catching the World's End killers lay with the people developing new techniques in forensic science.
Astonishing archive footage reveals how policing underwent a revolution throughout the decade, fuelled by advances in forensic science, DNA fingerprinting and information technology. The programme also reveals how the FBI's pioneering advances in forensic psychology led to hopes that psychological profiles of the World's End killers could be created. Retired DCC Tom Wood reveals that he travelled to the FBI HQ with files on the unsolved murders from the late 70s in search of answers.
In the late 80s, advances in DNA fingerprinting technology also brought hope to the detectives on the case. Some biological evidence had been discovered on Helen Scott's coat, and forensic scientists succeeded in using it to obtain a clear DNA profile. However, when they tried to match it with existing DNA profiles held on police records across the UK, no match could be found.
Through the 90s, further advances in forensic science meant that DNA analysis became both more sensitive and more effective. A reanalysis of the stain on Helen's coat revealed that there was more than one person's DNA present. This second sample was examined and matched to notorious sexual offender Angus Sinclair, who was serving two life-sentences in Peterhead Prison.
Investigators then desperately try and discover which other murders might have been committed by Sinclair, and this episode reveals how the first trial against Sinclair would go on to controversially collapse. It would take a change of law and a new advance in forensic science to see him finally brought to justice.
Trailer
Recently Updated Shows

Watch What Happens Live
Watch What Happens Live is an interactive series hosted by Bravo programming executive Andy Cohen, Bravo's Senior Vice President of Original Programming and Development, is best known to viewers as the host of the network's often explosive Watch What Happens reunion specials. Watch What Happens originally debuted as a live online show on www.bravotv.com. Watch What Happens welcomes guests from some of the cable network's most popular series, as well as other entertainment stars, to chat about pop culture and celebrities in the news!

Last Week Tonight with John Oliver
On Last Week Tonight with John Oliver, John Oliver presents a satirical look at the week in news, politics and current events.

On the Case with Paula Zahn
Led by Emmy Award-winning journalist Paula Zahn, On the Case features in-depth interviews and original reporting that go beyond the headlines in search of fascinating mysteries from within our nation's justice system. Each episode is highlighted by Zahn's riveting exclusive interviews, which draw out different viewpoints from the people personally connected to tragedies that rocked their local community and the investigations that attempted to piece together the truth On the Case with Paula Zahn.

The Twelve
Twelve citizens are called for jury duty on a high-profile murder trial as traumatizing as it is controversial, in which a woman stands accused of killing her sister's child.
As time goes by, the murder trial becomes a trial, not only for the accused, but for the jury members themselves.
Behind the façade of their anonymity, these twelve ordinary people bring with them their own histories. Lives that are as complex as the trial, full of fractured dreams, shameful secrets, hope, fears, personal trauma and prejudice.