Because two different people can't have similar personalities, right? :rolleyes:
The fact of the matter is, Sil died and there's nothing more to it. He was killed (it is implied) shortly before YOU, the PC, step into the room he is in. Had we gotten there a bit sooner, perhaps we could have been able to save him...but then again, would he want to have been saved?
Seht sought after the unlimited possibilities of life and found them all. Perhaps he found too much, or what he found bothered him so. Whatever the case, he had no other reason to live....and so he ceased to by his own silent admission.
Isn't that more poetic than "OMG HE IZ STILL ALIVE I TELLZ U!"? Some things are better when they're looked at for what they are.