Gently spoken and with a propensity to worry, Oliver Campbell, 53, is a little anxious about how he is going to get to the court of appeal in London from his home in Suffolk later this month and quite what he will find when he gets there.
He remembers almost nothing of the 14 police interviews he endured three decades ago or even much of the trial at the Old Bailey where was sentenced to life for murder in December 1991.
