 Weir claimed that Stewart Young, allegedly the leader of the Monaghan bombing team, had told him that Somerville and his brother John James had assisted in the attack.Somerville's Special Branch file also included the claim that he had been involved in another bombing, a largely failed attack on a Catholic housing estate in Coalisland in 1974.Somerville was a member of the Mid-Ulster UVF unit which carried out the ambush of the popular Dublin-based cabaret band, The Miami Showband.