It's possible that 2 of them spawned somewhere else not inside the consulate. I only managed to find one body. But they also spawned on that west stairs in the main entrance after I seemingly removed all necrofire, but after I killed them there they were gone and couldn't find them anylonger.
they seem to use up some of the necrofire when they respawn.. there might have been a very small amount of necrofire remaining and the few respawns were enough to use the remaining bit up.
