The Assassin's Creed franchise has always had a lot of graphic murders; however, when when you play the game proper, the graphic murders can be spread out to dilute their impact.
The following video is in no way shape or form about diluting Assassin's Creed Revelations' images of graphic murder, however. This trailer concentrates said images until you're left with nothing but 104 seconds that will make you pray a non-gamer doesn't see you watching this video, lest they think you're a blood-thirsty monster. Assassin's Creed Revelations comes out this November.