He and two other prominent republicans, Sam Marshall and Tony McCaughey, left Lurgan Royal Ulster Constabulary (RUC) barracks after signing bail.
"[4] The killers were never caught; however a man whose description matched that of former Ulster Defence Regiment member and UVF Mid-Ulster Brigade commander, Robin Jackson, was seen behaving suspiciously in the vicinity of the barracks at a previous bail signing by the three men.
[5] Duffy was jailed in 1995 for the murder of former Ulster Defence Regiment (UDR) soldier John Lyness, but later acquitted after one of the key witnesses, UVF member Lindsay Robb, was arrested in Scotland for gun-running.
Describing the deceased Alan Ryan as "a brave Irish republican and fearless IRA volunteer" who was dedicated to "fighting foreign interference in our country".
[23] On 2 November 2012, Duffy, along with another man, was arrested in connection with the murder of Prison Officer David Black on the M1 motorway between Lurgan and Portadown the previous day.
[24] In December 2013, Duffy was additionally charged with being a member of the IRA as well as conspiracy to possess firearms and explosives with intent to endanger life, in connection with an alleged plot to murder PSNI officers.