 Complete the following phrase:  Following the collapse of the 1973 ceasefire Mitchell became embroiled in a Loyalist feud that would ultimately see him imprisoned. The roots of the feud lay in the Ulster Workers Council strike when a brawl between members of the UVF and the Ulster Defence Association at a bar in the Tigers Bay area of north Belfast saw UVF member Joe Shaw killed by a shotgun in what both groups initially agreed was a tragic accident. However tensions were stoked by the UDA claiming the 