Mayhem's lineup changed because of the murder of which founder of the early Norwegian black metal scene?
Euronymous Øystein Aarseth (] ; 22 March 1968 – 10 August 1993), who went by the pseudonym Euronymous, was a Norwegian guitarist. Euronymous was a founder of and central figure in the early Norwegian black metal scene. He was a co-founder of the Norwegian black metal band Mayhem. He was also founder and owner of the extreme metal record label Deathlike Silence Productions and record shop Helvete.
Thorns (band) Thorns is a Norwegian black metal band that formed in 1989 and was part of the early Norwegian black metal scene. They made two highly influential demos in the early 1990s, "Grymyrk" and "Trøndertun", but have only released one full-length album.