Mortuus
There is more than one artist with this name:
1) Mortuus is a black metal band from Umeå, Sweden.
2) Mortuus is a Deathcore band from Indiana, USA. They released their EP "More Gore than Before" in 2007. Line Up: Joe - Vocals, Nathan - Guitar, Joey - Guitar, Mikey - Bass, Tommy - Drums
Mortuus had disbanded with members going on to form Dissever The Tyrant. Mortuus are now back together as a band.
3) Mortuus (1992 - 1996) is a grindcore band from Serbia, they've released only one album "Educationaly Motivating Electric Shock"