McCann was tried in Belfast in May–June 2008 for his actions as one of the Raytheon 9, a group who attacked and damaged the Raytheon factory in Derry.
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A Trotskyist and outspoken atheist, he is a prominent member of the Socialist Workers Party in Ireland, and in recent Northern Ireland elections has stood as a candidate for the Socialist Environmental Alliance.
McCann Erickson | Eamonn Andrews | Les McCann | Eamonn Walker | Chuck McCann | Colum McCann | Fergus McCann | Steve McCann | Sam McCann | John P. McCann | Éamonn Scallan | Eamonn Melaugh | Eamonn Holmes | Eamonn Fingleton | Eamonn Darcy | Tom McCann | Thomas A. McCann | Michael McCann (sports law) | McCann Rescue Chamber | McCann | Kerryn McCann | John Paul McCann | Gerald McCann (fashion designer) | Gerald McCann | E. Michael McCann | Éamonn Taaffe | Éamonn Ryan | Eamonn O'Keefe | Eamonn O'Kane | Éamonn O'Donoghue |
The Derry Housing Action Committee and its sister organisation Derry Unemployed Action Committee had many members and supporters from the James Connolly Republican Club, trade unionists and labour party members, amongst its activists were Eamonn Melaugh, Eamonn McCann, Fionnbarra O' Dochartaigh (Finbar O'Doherty), J.J. O’Hara (brother of hunger striker Patsy O'Hara), Labour activist Gerry Mallet amongst others.