Fenrir/George
He was a little disappointed that his first few kills were done by the Killing Curse. What is the fun in just killing them? he thought as a witch screamed when the man next to her dropped dead. Now, that is more like it. Greyback had brought his knives for later, after they had taken control, but for the time being he was simply firing off hexes and Killing Curses in order to keep as many people from leaving as possible.
As he moved throughout the lobby several familiar scents filled his nostrils, but it was the color of one man's hair that caused him to turn his head. "Didn't I kill you the last time?" he said to himself before firing a Cruciatus Curse at him.