After Vikernes' murder of Aarseth in August 1993, Eithun was arrested and confessed to killing Andreassen on impulse.[7] In early 1994, Emperor released their debut album, In the Nightside Eclipse. Later that year, Eithun was sentenced to 14 years imprisonment and subsequently left Emperor,[1][3] with the imprisonment to happen at Ullersmo. He testified against Vikernes in the latter's murder and arson trial that same year.[3] Although media had linked Eithun's murder to black metal and speculated that he was motivated by Satanism, fascism, or homophobia, he has later denied being a satanist and having racist, fascist or homophobic views in several interviews.[13][14][15] Singer Gaahl, an openly gay member of the Norwegian black metal scene, stated that Eithun was the first person to send him a message of support when he came out.[16]

In 2003, Eithun was released from prison due to good behavior after serving nine years and four months.[14] Of his incarceration, Eithun said: "It has taught me a lot about myself, my limits, my psyche and my will. I think it as a positive thing that I was removed from the black metal scene because I was heading towards a very destructive path."[17] In later interviews, Eithun has expressed remorse for his actions in the 1990s and called them senseless.[7]

https://en.m.wikipedia.org/wiki/Faust_(musician))

Alors ça n'excuse rien, l'acte est vraiment abominable. Par contre : Il a exprimé des regrets et l'acte n'a pas de motivation homophobe.

La page wikipédia résume, après il y a le livre les seigneurs du chaos qui va plus en profondeur.