Tornado crews flying over  Iraq say their mission is 'personal' as they seek 'some sort of justice' for murdered RAF engineer David Haines. The 44-year-old British aid worker, who served with the force for 12 years, was beheaded by ISIS militants in a shocking propaganda video after being taken hostage in Syria. Now servicemen and women based in RAF Akrotiri in Cyprus - who have so far not unleashed firepower on any suitable targets in nothern Iraq - say they want to stop other captives suffering the same fate as their former colleague. British hostages Alan Henning and John Cantlie are still being held under threat of execution by the same fighters.
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Source said RAF crews in Cyprus hope to stop any more captives suffering
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Said mission was 'not about revenge but perhaps some sort of justice'
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British aid worker David Haines, 44, spent 12 years as an RAF engineer
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He was murdered by ISIS militants after being held hostage in Syria
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Just six Tornados have joined the mission to bombard Islamic State
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Failure to drop bombs has fuelled concern UK is not pulling its weight
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Former Armed Forces chief warns air attacks alone can't defeat Islamists
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