The British terrorist dubbed ‘Jihadi John’ has been described as a 'dead man walking' by commentators as the UK's security services seek to track him down and bring him to justice.

But while some experts have suggested he has been identified by MI5 and MI6, his sickening appearance in this ISIS video is a reminder of how much work British agents must do before they bring his reign of terror to an end.

The best hope for eliminating him may come from the skies. Last week it was revealed the US has begun sorties using drones equipped with the latest cameras and weapons over Raqqa in northern Syria – where it is believed ISIS is holding Western hostages.

It has also been reported that President Obama would approve an immediate strike on Jihadi John if drone operators reported they had found him....

It is understood that hundreds of British Special Forces and intelligence-gathering personnel are currently working in the region in an effort to capture Jihadi John.

The operation also involves liaison with Kurdish and Iraqi soldiers. They are using an array of sophisticated equipment to track him down and free other hostages.

Jihadi John is believed to have travelled to the war-torn country from London over a year ago after becoming radicalised and raising money for the jihadists whilst in Britain....