The Black Lantern Rings appeared. Under the Blackest Night Emperor's interference, they finally began their revenge against the living. In Blackest Night Emperor's view, all those bastards in the multiverse owed him. If Genesis Light hadn't launched that damned sneak attack and gravely wounded him, this world would not have become such a chaotic mess. By Blackest Night Emperor's standards, darkness and tranquility were what the multiverse was supposed to look like. As for slaughter... it was merely an insignificant means to an end.