1) Why was he cut loose by his handlers in MI6/FRU/14 Det?
2) Why did it take PIRA so long to slot him? Admittedly he was in hiding in what ammounted to a shed but there was a period of time before he went on the run when he was still in NI and PIRA knew where he was. Why didn't they take the opportunity then?
While it would be fun to speculate that ian paisley shot him sadly its unlikely to be true. I realise what you said and my response was a sarcastic suggestion of what the Governments suggestion may be as its could not possible be those peace loving rogues the ira.