An Islamic extremist double-murderer who cost the taxpayer almost £240,000 when he sued over being kept in solitary confinement had previously held a prison officer hostage at knife point - and told him: ‘I’ve killed two people and I’ll kill you’.

Drug gangster turned jihadist sympathiser Fuad Awale, 38, used European rights laws to argue that his being locked up alone was unfair - despite the move following his hostage taking terror attack.

The full shocking details of that brutal siege in which Awale’s victim feared he would die make his High Court-approved compensation and costs settlement even more provocative.

Awale, who was serving life for the execution‑style killings of two teenagers, ambushed prison warden Richard Thompson inside Full Sutton prison, near York, in May 2013 - just days after soldier Lee Rigby was murdered in a jihadi street attack in south London.

Alongside fellow Islamist extremist Feroz Khan, Awale held Mr Thompson captive for five hours in which he was pinned to a chair, beaten and threatened with execution.

At one terrifying point, the Somali-born extremist pressed a makeshift blade to the officer’s throat, snarling: ‘Stop struggling. I’ve killed two people - I’ll kill you.’

Mr Thompson later recalled the ordeal in court, telling jurors: ‘I saw Awale playing with the knives. At one stage he was rubbing the knives together, rather like someone who was preparing to carve up a Sunday roast.’

Awale also asked convicted killer Khan: ‘Can I give him one in a non-vital area?’ and later said: ‘I thought his head would have come off by now.’

Drug gangster turned jihadist sympathiser Fuad Awale, 38, used European rights laws to argue being locked up alone was unfair - despite the move following his hostage taking terror attack

Mohammed Abdi Farah and Amin Ahmed Ismail (pictured) were shot and killed by Fuad Awale in 2011

The court heard Awale previously asked to associate with one of the Islamic extremist killers of Fusilier Lee Rigby (pictured) - but was denied the request due to 'counter-terrorism concerns'

The officer said he had ‘every belief’ he would be killed if he did not do as ordered because of the ‘intensity and seriousness’ Awale had displayed.

Khan, who fractured Mr Thompson’s eye socket, planned the uprising after telling another guard that it was a Muslim’s duty to ‘fight until Sharia law is established in every country’.

The pair demanded the release of hate preacher Abu Qatada and Roshonara Choudhry, the student who stabbed Labour MP Stephen Timms at a constituency surgery in May 2010.

A court heard how Khan dictated their demands, while Awale asked him: ‘Should I write we are terrorists?’