There have been allegations that police ( Royal Ulster Constabulary ) double agents or informers in the UVF were linked Connect to the massacre and that police protected Preventing_or_letting those informers by destroying Destroying evidence and failing to carry out a proper investigation Criminal_investigation .

There have been allegations that police ( Royal Ulster Constabulary ) double agents or informers in the UVF were linked Connect to the massacre and that police protected Preventing_or_letting those informers by destroying Destroying evidence and failing to carry out a proper investigation Criminal_investigation .

The Ombudsman did not investigate Criminal_investigation the role of informers and the report Reporting was branded a whitewash .

In 2016 , a new Ombudsman report concluded Coming_to_believe that there had been collusion between the police and the UVF , and that the investigation Criminal_investigation was undermined by the wish to protect informers , but found Know no evidence police had foreknowledge of the attack Attack .

Gentry fearing revolutionary horrors recruited Employment militia and the government deployed Arranging an apparatus of spies , informers and agents provocateurs to stamp out the movement .

Six were killed Killing as purported British informers and loyalists , while four others were relatives killed Killing in the absence of the target .

Some historians have claimed Statement there were sectarian motives ; others claim Statement that those killed were targeted Aiming only because they were suspected Suspicion of having been informers during the Anglo-Irish War Hostile_encounter , and argue Protest that the dead were associated Collaboration with the so-called `` Murragh Loyalist Action Group '' , and that their names may have appeared in captured British military intelligence files which listed Writing `` helpful citizens '' during the Anglo-Irish War Hostile_encounter ( 1919–1921 ) ,