In 1969 , he was prominent in the establishment of the Provisional IRA . By 1972 , he was Officer Commanding of the Provisional IRA Belfast Brigade when it launched its bomb campaign of the city , including Bloody Friday when nine people were killed . During the 1970s , the leadership of the Belfast Brigade of the IRA was largely in the hands of Twomey and Ivor Bell
Bloody Friday
Bloody Friday (1972)
Seamus Twomey