With the band, he released the seminal and influential extreme metal albums The Somberlain (1993) and Storm of the Light's Bane (1995).

During the summer of 1995, Nödtveidt joined the newly formed Satanic organization Misanthropic Luciferian Order (MLO).

[13] On 13 August 2006, Nödtveidt was found dead in his apartment in Hässelby by an apparent self-inflicted gunshot wound inside a circle of lit candles.

[14] Early reports indicated that he was found with an open copy of the Satanic Bible, but these were later dismissed by Dissection's guitarist Set Teitan.

"[15] The said "Satanic grimoire" is reputed to be the Liber Azerate, one of the publishings of the Misanthropic Luciferian Order, of which Nödtveidt was a member since the early stages of the cult.

The lyrics of the final Dissection album, Reinkaos, were co-written by Nödtveidt's friend Vlad (Victor Draconi)[a] who wrote the Liber Azerate under the pseudonym Frater Nemidial and was convicted of murder in 1998.