why wouldn't they just show that scene from illythia's POV? riding in the carriage, show some sword flashes, gore, etc, and then only have the rudus there as something to indicate it was gannicus.

the fact that they showed gannicus, and that the whole episode showed him getting more and more disgusted with glaber, makes it seem like this is the logical conclusion for him.

i was initially going down another direction, that lucretia knew all along that gannicus wouldn't skulk into the house and kill gannicus in his sleep (that's too much like ashur's work), and that she would have more to gain if gannicus kidnapped illythia.

but the entrails and everything at the scene make it seem like ashur's men. i'll have to re-watch that ending.