The teams assume nothing as they examine events through fresh eyes.

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Northern Ireland.35 years later, her family is still searching for answers.Episode 6: Duty of CareNathan brings his findings to Mary's family – the possible implications are far from straightforward.Questions remain for Mary's former employer. Will the family receive any answers?Series produced by Nathan Edgar Executive editor Andy Martin A BBC Northern Ireland Production

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

A baby is born with disabilities in the wake of the world's worst nuclear disaster. She grows up neglected and in fear in an orphanage in Belarus, until she is taken on a radiation holiday to Ireland. A new life with hope and possibility unfolds before her. But the mystery of what happened in her early life has cast a shadow over her life. And she's determined to solve it.

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Northern Ireland.35 years later, her family is still searching for answers.Episode 5: The RhythmAs Norman's legal battle comes to an end, could something the family was unaware of provide new answers?With the benefit of modern knowledge, a group of leading experts re-examine the case.Series produced by Nathan Edgar Executive editor Andy Martin A BBC Northern Ireland Production

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Northern Ireland. 35 years later, her family is still searching for answers.Episode 4: The WarningsWhen the official inquest fails to reach a conclusion regarding Mary's death, Norman refuses to give up.As he continues his legal battle, Norman points to allegations of previous attacks on his wife while on duty - was enough being done to protect both staff and patients on the ward?Readings by:Lucy McConnell Patrick Strain Francis Harkin Declan RodgersSeries produced by Nathan EdgarExecutive editor Andy MartinA BBC Northern Ireland Production

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Derry, Northern Ireland. 35 years later, her family is still searching for answersEpisode 3: The InquestAfter months of delay, Norman wins an important victory – an official inquest will examine the circumstances of Mary's death. Bishop Street Courthouse, Derry - 29th October, 1991. For the first time, witness accounts, medical evidence and post-mortem findings are heard under oath - as the Glasgow family listen for answers that never came in the aftermath of Mary's death. Will anything new come to light?Readings by:Lucy McConnell Patrick Strain Christine Clare Francis Harkin Declan Rodgers Colm HerronSeries produced by Nathan EdgarExecutive editor Andy MartinA BBC Northern Ireland Production

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Northern Ireland.35 years later, her family is still searching for answers.Episode 2: The TapesLeft with no explanation for his wife's sudden death, Norman begins to fight for answers – but he faces one obstacle after another.Today - all that Mary's daughters have left are memories, a collection of old home videos filmed by Norman – and questions left unanswered for 35 years.Readings by:Lucy McConnell Patrick Strain Francis Harkin Declan RodgersSeries produced by Nathan Edgar Executive editor Andy MartinA BBC Northern Ireland Production

The story of a 35 year old nursing assistant who collapsed and died following an altercation with a patient at a psychiatric hospital in Northern Ireland.35 years later, her family is still searching for answers.Episode 1: The Last Shift23rd March, 1991. Mary is finishing her night shift when a patient suddenly becomes violent. A colleague hears a loud commotion and rushes to help. Meanwhile, Mary's husband Norman is on his way to collect her, unaware of an unfolding tragedy.Readings by:Declan Rodgers Christine Clare Colm HerronSeries produced by Nathan EdgarExecutive editor Andy Martin

Short Description 8. The Journal Medium Description A security breach. A top-secret surveillance operation. A government collapsed. The exposure and death of a spy. Long Description Twenty years on, nobody has been convicted of the murder of Denis Donaldson. One potentially key piece of evidence, a journal he was supposedly writing around the time of his death, is being held by Irish police. His family wants it returned, but their efforts are unsuccessful.

A matter of months after he confesses to being a spy, Denis Donaldson is murdered at a remote cottage in Donegal. Questions are asked about his death, his life, and his true loyalties. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

A journalist gets a tip that a political backroom man who's just confessed to being a spy is living in the wilds of Donegal. He sets out to track him down and secure a major scoop. The old, whitewashed stone cottage where the spy is living has a dark history that's about to take another chilling turn. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

The dust has barely settled on the shock news that prosecutors have dropped all charges against three men accused of running a republican spy ring in government, when one of them makes a jaw dropping confession. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

Four people are arrested when police swoop to break up what they claim is a republican spying network operating at the heart of Northern Ireland's volatile government. A convoluted legal process ends with an outcome nobody sees coming. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

A massive surveillance operation into IRA intelligence gathering has led police to the home of a political party administrator. They recover material they believe to have been stolen from government offices, but some of the intelligence is missing. Their efforts to find those missing items turns the covert operation into a full-blown political scandal that threatens the future of Stormont's shaky coalition. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

Police investigating a daring break in, supposedly by the IRA, at their counter terrorism unit's headquarters get a tip off. Apparently, there's another republican intelligence operation happening and its reach extends to the heart of Northern Ireland's volatile government. Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

A daring raid at the Belfast headquarters of Special Branch, the police counter terrorism unit, triggers a massive investigation. The finger of blame is pointed at the IRA, at a time when the paramilitary ceasefire is just about holding but government in Northern Ireland is far from stable.Presenter: Martin McCann Additional Voice: Nicolas Boulton Produced by BBC Northern Ireland

In August 2020 Katie Simpson was brutally murdered by Jonathan Creswell, the partner of her older sister.For months he convinces her family, the hospital, the pathologist and even the police that she'd taken her own life. He portrays himself as the Good Samaritan, who'd tried to save her.But for a small group of people, close friends and family, a Detective Sergeant and journalist Tanya Fowles, the truth about how she'd died might never have come out.For the first time, Tanya reveals how in the weeks after Katie's death, while she'd been asking questions of the police about Creswell, she receives a phone call from someone employed by one of Northern Ireland's politicians.The message is clear, unusual and unnerving. The journalist has no idea how her caller knew she was enquiring about the case as she hadn't published a word about it yet.But it convinces her more than ever that there is definitely more to Katie's death than suicide.

A woman says she's visited by men who she says tell her there is no point in pursuing Jonathan Creswell after she reported him for stealing her horse. Another is told police couldn't arrest him when she'd reported him for indecent exposure at the yard where they worked. And for the first time, journalist Tanya Fowles reveals details of a call she received trying to put her off the story.

Detective Sergeant James Brannigan has one last chance to convince his bosses to launch an investigation into Katie's death. Working on his own, he compiles a 20-page report of all the evidence so far. He says there are questions that need answers. He hopes senior officers will now decide the death needs to be looked at by a Major Investigations Team. But it is only when a young officer speaks up that the decision to have another look is made.

Detective Sergeant James Brannigan is able to speak to this series for the first time. He reveals how a call from journalist Tanya Fowles leads him to review the evidence gathered so far by his police colleagues into the murder. The more he uncovers, the more he believes an investigation is needed. He's just got to convince his senior officers.

Jonathan Creswell very nearly gets away with murder. He tells police Katie Simpson had tried to take her own life. He's the hero who'd tried to save her. But he is lying. He's eventually charged with her rape and murder. Now new witnesses say they'd tried to warn police of her killer's behaviours.

As Cameron Finnigan is sentenced at the Old Bailey his mum speaks out. She offers a rare, painful and deeply revealing insight into families caught in the fallout of 764.The BBC investigation explores what it will take to stop this network and the National Crime Agency reveal what they're doing to combat the growing threat of online groups like 764.For information and support on issues discussed in this series, visit bbc.co.uk/actionline.

In a chilling look at how screens become crime scenes, we uncover a murder that was plotted in Romania and live streamed to 764 members worldwide.The investigation explores the power of online manipulation and the worrying reach of 764.For information and support on issues discussed in this series, visit bbc.co.uk/actionline.

Uncovering what happens inside 764's chatrooms and its devastating toll on victims and families who are caught in the web of a network so dangerous, global law enforcement can barely keep up.We meet a Canadian mother, whose daughter was drawn into the group's grip, revealing how 764's tactics push families to the brink and leave no one untouched.For information and support on issues discussed in this series, visit bbc.co.uk/actionline.

Teenager Cameron Finnigan from Horsham in Sussex is arrested in a dawn raid. Behind it all is a shadowy online network called 764, so dangerous it's being hunted by the FBI and global law enforcement.The BBC investigates how Finnigan became entangled in a world where teenagers are coerced into live streaming rituals, self-harm and murder plots.Presenter Jo looks deeper into the predators behind 764 and explores how they are reaching vulnerable children in their bedrooms.For information and support on issues discussed in this series, visit bbc.co.uk/actionline.

They are a terrorist organisation who believe ‘no lives matter.' They search for and extort children and young people, with deadly results. This is the story of the far right Satanist group called 764.For information and support on issues discussed in this series, visit bbc.co.uk/actionline.

A fierce warrior turned master strategist, he led elite SAS troops on missions that shifted the tide of World War II. Decorated four times yet denied the Victoria Cross. Was it down to a typo or a face that didn't fit? Today, his legend burns brighter than ever, fuelling a renewed campaign to honour him with the Victoria Cross.

Blair Mayne instils a maverick form of discipline, mourns a brother-in-arms, and forms the tip of the spear to liberate Europe from the Nazis.

In the shadows of the Middle East, Blair is pulled into a secret war fought far from the headlines. Recruited by a newly formed unit known only to a few - the SAS - Blair wages chaos and destruction behind enemy lines, where no rules apply.

Tales in making a sporting soldier...Blair Mayne floored his own boxing coach at Queen's University in Belfast, shot a springbok on the 1938 British & Irish Lions tour, and later stood sharp as a solicitor. The life of this Newtownards war hero was built for the big screen, but did they get it right? Soft-spoken leader of men, or natural born hell raiser? We find out about the Real Blair 'Paddy' Mayne.Featuring contributions from David McCallion, Peter Forbes, Fiona Ferguson, Damien Lewis, Peta Jane Chapman, Ciaran Donaghy, Gavin Mortimer and Steve Knight. Thanks to Gordon Stevens and the Imperial War Museum.

The story of two journalists who investigated an unsolved mass murder in Northern Ireland. Six men were shot dead by Loyalist paramilitaries in the Height's Bar, Loughinisland on the 18th June 1994. No-one has ever been charged or convicted. Episode 8 – Who Watches the WatchmenAs the dust settles on a historic judgement by the Investigatory Powers Tribunal – Barry and Trevor say their fight is not yet over, demanding a full public inquiry to reveal the full extent of surveillance. Can a wide-ranging review of surveillance powers commissioned by the Chief Constable of the PSNI provide answers - and can a balance between national security legislation and the need for transparency ever truly be achieved?A BBC Northern Ireland Production

The story of two journalists who investigated an unsolved mass murder in Northern Ireland. Six men were shot dead by Loyalist paramilitaries in the Height's Bar, Loughinisland on the 18th June 1994. No-one has ever been charged or convicted. Episode 7 – Full DisclosureBarry and Trevor prepare for a rare public hearing of the Investigatory Powers Tribunal – but last minute disclosures from police forces across the U.K bring repeated adjournments – and raise serious questions about how wide the net of surveillance against journalists has been cast.A BBC Northern Ireland production

When the High Court finds the warrants were unlawful, the police investigation comes to an end. But Barry is concerned that he may have been placed under surveillance and he approaches the only court in the UK which can tell him if that's true.The Investigatory Powers Tribunal has the power to find out if he was spied on unlawfully, but rarely find in favour of claimants. Years pass with no response – then, an unexpected revelation. One that will have far-reaching consequences for journalists and multiple police forces.

Released on bail, Barry McCaffrey and Trevor Birney begin a legal fight to challenge the legality of the warrants. Central to their case is the question of what the judge who granted the warrants was - and wasn't - told by police.The judgment will be viewed as a landmark ruling on the rights of journalists to protect sources; were the warrants unlawful?A BBC Northern Ireland production

The story of two journalists who investigated an unsolved mass murder in Northern Ireland.Six men were shot dead by Loyalist paramilitaries in the Height's Bar, Loughinisland on the 18th June 1994. No-one has ever been charged or convicted. Episode 4 – Operation YurtaOn the day of the film's Belfast premiere, police announce a new investigation – into the suspected theft of sensitive documents from the Police Ombudsman of Northern Ireland.Barry McCaffrey and Trevor Birney are arrested nine months later and their homes and offices are searched. While they are questioned about four offences - theft, handling stolen goods, unlawfully disclosing personal data and offences under the Official Secrets Act - their legal teams must make an urgent decision.Readings byIan Davidson Steven Calvert Aoibheann McCann Antoinette MorelliA BBC Northern Ireland production

The story of two journalists who investigated an unsolved mass murder in Northern Ireland. Six men were shot dead by Loyalist paramilitaries in the Height's Bar, Loughinisland on the 18th June 1994. No-one has ever been charged or convicted. Episode 3 – No Stone UnturnedWhile a second Ombudsman investigation gets underway, journalists Barry McCaffrey and Trevor Birney start work on a new documentary about the Loughinisland massacre.When the Ombudsman's report finds elements of the police prevented a proper investigation to protect informants, Barry uses the leaked documents to unlock the identities of chief suspects – but should they name them in the film?Readings by: Steven Calvert Aoibheann McCann Antoinette Morelli Brian KernohanA BBC Northern Ireland production