They killed Seljuk officials and well-known Sunni clerics. They killed two of the khalifas. As often as possible, they carried out their assassination in the biggest mosques during Friday prayer, when they could be sure of an audience. Then in 1092 they murdered the recently retired Nizam al-Mulk himself. Scarcely a month later, they dispatched his master, Sultan Malik Shah, son of Alp Arslan.
