In the last month, the Islamic State (IS) has been waging a concerted campaign to shut down all independent sources of information emanating from its statelet. IS’s focus has been on Raqqa is Being Slaughtered Silently (RBSS), an activist group that began in April 2014 in IS’s de facto capital in northern Syria. RBSS has published information—including pictures and videos, much of it via Twitter—on the crimes of the “caliphate”. IS has now murdered at least five RBSS journalists and activists, two of them on foreign soil in Turkey, plus the father of one of RBSS’s founders. (The sixth case, also in Turkey, is more murky.) The suppression of independent media by IS is necessary to allow the group to maintain social control of the areas it rules and to sustain the narrative that it is building utopia on earth, which attracts in the foreign fighters that help IS maintain and expand its territory.