That doesn't make a whole lot of sense to me. Any investigation of their deaths would start with "what were they doing before they died? Oh, asking questions about Halima. Okay."

Plus, if that was why she killed them, why leave their bodies where they would be found and cause of death determined as saidin. Getting rid of the bodies so that they seemed to just disappear would not have been difficult for her.

Why did Aran'gar (assuming it was Aran'gar) kill the sisters in the Salidar camp?

Here's a thought I haven't heard expounded on before (doesn't mean it hasn't been but :D) How much interaction has Rand had with the black ajah? More specifically, does he know the extent of their...existence I guess?

Reason I ask is because I have always liked Rand for his cunning and his ability to lay traps for his enemies that anticipate what their actions will be. And yet he seems to have this huge blind spot for black ashamain. From LTT's experiences in tWP and his own as Rand with BA and the 4 renegades, it seems to me that he should see that coming. Plus he's got Logain constantly harping at him about it, and yet he just acts like he doesn't care. Does anybody remember anything to indicate that he is doing anything about it?