Eventually, in 1993 the then Home Secretary Michael Howard granted Bentley a partial pardon, saying it was clear he should never have been hanged but he remained guilty of taking part in the murder.
Iris Bentley (Dereks mother) died in 1997 before the case was referred back to the Appeal Court.
In 1998 the Appeal Court quashed Bentley's conviction on the grounds the original trial judge was biased against the defendants and misdirected the jury on points of law.
Scientific evidence also showed the three police officers who testified about Bentley shouting "Let him have it" had lied under oath.
Craig served 10 years before being released.
Iris Bentley (Dereks mother) died in 1997 before the case was referred back to the Appeal Court.
In 1998 the Appeal Court quashed Bentley's conviction on the grounds the original trial judge was biased against the defendants and misdirected the jury on points of law.
Scientific evidence also showed the three police officers who testified about Bentley shouting "Let him have it" had lied under oath.
Craig served 10 years before being released.