The story of one of metal's most talented power trios begins with a band called Diamond. Before bassist Ron Royce (Ron Broder) and guitarist Tommy T. Baron (Tommy Vetterli) formed Coroner, they played in a traditional hard rock outfit by that name. After only three gigs or so, Ron and Tommy decided to leave because they wanted to start their own band. Thus, Coroner as we know them today was born. The first result of Tommy, Ron and Marky working together was the Death Cult demo, featuring 'Spectators Of Sin', 'Spiral Dream', 'Aerial Combat' and 'The Invincible'. Tom Gabriel Fischer of Celtic Frost sang vocals and also wrote the lyrics for Death Cult.