Garanar The Bloodthirsty

Garanar was once an honorable soldier for the Blackfang clan during the Siege of Steamwheedle who killed so many rats to the point that he completely lost his sanity. He lost his sanity whilst fighting off a horde of rotten rats, and decided to turn on his fellow Blackfang brothers. He ended up killing BOTH the group of Blackfang rats and the Rotten rats.

Ever since that incident he would kill anything living in an attempt to quench his undending thirst for blood. After many decades of constant slaughter, a group of Swiftclaw rats managed to lure him into a cell, where he eventually died.