Nicola Tallant

Conor McGregor is suing Sky News for defamation, claiming he was called a rapist by one of their reporters.

In the first of our four-part extract of Nicola Tallant's book Groomed: Coercion, Control and a Cold-blooded Murder , we reveal how twisted Jonathan Creswell was gearing up for murder.

As the ambulance made its way to the hospital, Creswell was instructed by police to follow, but when he did arrive, he was with Hayley Robb in her Ford Fiesta car and he was wearing a different top.

As a post-mortem rules Katie's death as not suspicious, Jonathan Creswell begins to cover his tracks.

While he had no blood ties to the Byrne family or their brother-in-law Kavanagh, McGovern became their most trusted lieutenant

Denis Donaldson was a revered and much-loved IRA hero, who helped guide Sinn Fein through the peace process and worked at the heart of the first power sharing government in the North. So, when he outed himself as an MI5 spy in December 2005, it rocked the Republican movement to its core - those who knew him described him as the man least likely to turn tout. After confessing to being a paid agent for the British forces, Donaldson immediately went into hiding but was tracked down three months later by a Sunday World journalist. Within two weeks he was dead, his body found in the remote Donegal cottage where he'd been living with his wife. Antoin Duffy, also known as Anton, a 39-year-old from Kincasslagh in Co Donegal was recently extradited from Scotland, where he was serving a prison sentence, and was charged with murdering Donaldson. His case is expected to be heard later this year.

When Barry Moore called to his friend's house to buy a tracksuit, he could never have imagined he would be leaving an hour later with the word ‘RAT' branded on his face and body with a heated iron.

Sean McGovern began his criminal career as a teen thug on the streets of Crumlin on Dublin's southside. For decades he was an integral member of a gang of fellow hoodlums and friends he'd grown up with, until circumstances forced him to flee the country. He rapidly found himself at Daniel Kinahan's side, helping the notorious cartel leader to monitor and control Dublin's crime scene from abroad. But he never forgot his pals back home. In this new three-part series exclusive to Crime World subscribers, Nicola and Niall look back over McGovern's violent career and the corrupt comrades he promised to always remain loyal to.

Creswell was a star, albeit amid a horsey set used to rough manners and crude language

Shocking review into murder of Katie Simpson says police are investigating sex offenders who are still involved in the equestrian industry