In response, Dean led an attack by hunters, including Benny, on the Men of Letters bunker where Dean killed several demons with angel-killing bullets. However, most of the other hunters were killed by Sam and his demons. After speaking with a dying Benny, Dean was confronted by Sam who refused to be stopped. Dean insisted that it was the demon blood and Sam had to fight it, but Sam refused and killed an approaching hunter. Dean pleaded with Sam to stop but Sam, his eyes turning black, snapped Dean's neck with telekinesis, killing him.