Suddenly then
the God-cursed brute was creating havoc:
greedy and grim, he grabbed thirty men
from their resting places and rushed to his lair,
flushed up and inflamed from the raid,
blundering back with the butchered corpses.

Beowulf, Seamus Heaney (trans.)

Lines 120-125: Grendel is a creature of excessive and murderous violence.