 Somerville was part of the UVF unit that ambushed the Irish cabaret band The Miami Showband at Buskhill, County Down, which resulted in the deaths of three of the bandmembers.Somerville killed himself, along with Harris Boyle, when the bomb they had loaded onto the band's minibus exploded prematurely.His brother, John James Somerville (a former UDR soldier) was one of the three convicted murderers of bandmembers Brian McCoy, Fran O'Toole and Tony Geraghty.