Mutilator

There are multiple artists with this name:

1) Mutilator was a Thrash Metal band from Belo Horizonte, Brazil.

They formed in 1985, and released a demo called "Grave Desecration". few more Demos followed this release, until in 1987 they released their debut full-length album Immortal Force which was in a more Death Metal style than Thrash Metal album.

They released, thereafter, an album called Into the Strange released in 1988 was in the style of Thrash metal once again. After this album the band split up due to musical differences.