Jarno Sebastian Elg is a Finnish

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 Devil-worshipper, who was sentenced to life in prison

Life imprisonment

Life imprisonment is a sentence of imprisonment for a serious crime under which the convicted person is to remain in jail for the rest of his or her life...

 for murdering a 23-year-old man, eating some of the body parts and instigating others to participate in a ritual

Ritual

A ritual is a set of actions, performed mainly for their symbolic value. It may be prescribed by a religion or by the traditions of a community. The term usually excludes actions which are arbitrarily chosen by the performers....

 that included torturing

Torture

Torture is the act of inflicting severe pain as a means of punishment, revenge, forcing information or a confession, or simply as an act of cruelty. Throughout history, torture has often been used as a method of political re-education, interrogation, punishment, and coercion...

 the victim while listening to songs from The Cainian Chronicle

The Cainian Chronicle

The Cainian Chronicle is Ancient's second full length release. The album has some sort of twisted legacy towards it with the gruesome case of Jarno Elg, a Finnish devil-worshiper that listened to some songs from this album while instigating others to torture the victim and having others eat parts...

album by Norwegian black metal

Black metal

Black metal is an extreme subgenre of heavy metal music. Common traits include fast tempos, shrieked vocals, highly distorted guitars played with tremolo picking, blast beat drumming, raw recording, and unconventional song structure....

 band Ancient

Ancient (band)

Ancient is a Norwegian black metal band from Eidsvåg, Nesset, formed in 1992. The band has released six full-length albums released by Metal Blade Records and a variety of mini-albums, EPs and special releases. Ancient used to have the classic raw black metal sound, similar to Darkthrone's works...

 on November 21, 1998, in Hyvinkää

Hyvinkää

Hyvinkää is a town and municipality of Finland. It is located in Uusimaa region, approximately north of the capital Helsinki. The town was chartered in 1960. Hyvinkää belongs to the Province of Southern Finland. The population of Hyvinkää is ....

. Elg's partners were 17-year-old Terhi Johanna Tervashonka from Järvenpää

Järvenpää

Järvenpää is a town and municipality of Finland.-History:Järvenpää was separated from its parent community Tuusula in 1951. Järvenpää was granted the status of a market town after the separation. Neighbouring districts Kellokoski and Nummenkylä were not added to the municipality of Järvenpää and...

, 20-year-old man from Mäntsälä

Mäntsälä

Mäntsälä is a municipality in the province of Southern Finland, and is part of the Uusimaa region. It has a population of and covers an area of ofwhich is water. The population density is....

 and a 16-year-old boy from Kerava

Kerava

Kerava is a town and municipality in Finland.It is located in the province of Southern Finland and is part of the Uusimaa region. The town has a population of and covers an area of of which is water. The population density is...

.

The criminal investigation started when a leg was found from a dump site, thus giving the name "dump site murder" to the case. The case was generally described as the most gruesome homicide in Finnish history.