Yesss! The site I checked (because I couldn't remember specifics of all deaths) listed it wrong, he got his head chopped off :laugh: All sites (including this) lists Sammael as death by mashadar but I think there is enough mystery around it to go either way on that one... so Demandred sounds...
Just writing again to mention there are book spoilers for all the books including the last one in this thread.
So. I had some thoughts regarding the Forsaken and balefire. In S1E5 there are those little statues of the Forsaken shown. Only one is named, Ishamael, and then there are 3 more...