Why is Geralt called the Butcher?

Why is Geralt called the Butcher?

In the books Geralt saves the town of Blaviken from an attack by bandit elves led by an elf named Renfri, he does this by slaying the bandits in middle of the town, but since none of the townsfolk knew of the attack so it just looked like Geralt attacked them out of the blue, thus giving him the title “”the butcher of … May 22, 2015

See also  Can randomizer be rigged?