An inquiry into the death of Billy Wright, in the Maze prison in 1997, took issue with the emphasis on connivance.

BBC: How has collusion been defined?

But they were called traitors by Billy Wright's dissidents and to date have won no more than 5% of the total unionist vote.

ECONOMIST: Why the peace process is in trouble

The stadium where the magical Magyar Ferenc Puskas's drag-back left Billy Wright floundered, and where Manchester United beat Benfica to claim the European Cup for the first time.

BBC: Wembley awaits facelift

Billy Wright's father David welcomed Judge Cory's recommendations.

BBC: NEWS | UK | Northern Ireland | Cory reports: what was said

However, it did acknowledge "that failure, by the RUC, to pass on intelligence to prison authorities in April 1997 may have contributed to the chain of events leading to the death of Billy Wright eight months later".

BBC: Negligence not collusion led to Billy Wright murder

But the anger of both Protestant paramilitaries and politicians was given a dangerous focus by the assassination in prison, just after Christmas, of Billy Wright, a member of the Loyalist Volunteer Force, a fringe loyalist group opposed to peace talks.

ECONOMIST: Why the peace process is in trouble

Billy Wright's reputation was not dissimilar.

ECONOMIST: Ulster

In his review of the murder of Pat Finucane, Sir Christopher de Silva said he had adopted a "working definition" of collusion less broad than that of Judge Cory and more in line with that of the Billy wright inquiry panel.

BBC: How has collusion been defined?