First, let me explain that I've always felt that BG1 Viconia was a rather sympathetic character (I emphasize BG1 vs. BG2 Viconia, because I find BG2 Viccy to be a nasty b*tch). To me, she's someone who is unfairly maligned and persecuted because of the color of her skin and perceptions about her race. I know that many people will argue that my perception of this issue is misplaced, because I'm applying modern-day sensibilities to a fantasy game that was never intended to be perceived in that way, but I've always taken the opposite view that the BGs are actually very effective allegories for the modern world.
Anyway, from the moment that I first encounter Viconia, I always feel a sense of responsibility for her, much like when I first save Neera or Aerie. I view her as being persecuted by a rogue officer, who insists that she is a murderer but offers up no other "proof" than the color of her skin, and intends to kill her without allowing her the opportunity for a fair trial. Personally, I've always felt that a good-aligned character is the one that should feel compelled to save Viconia, whereas an evil-aligned one would just be indifferent.
Anyway, getting back to the topic, my party had just rescued Viconia in Peldvale, then teamed up with Raiken to infiltrate the bandit camp. I outlined what happened next in my other thread here: http://forum.baldursgate.com/discussion/34935/um-i-just-killed-tazok-in-the-bandit-camp
As usual, Tazok insisted that my party prove itself in a contest of wills before he would welcome them into the camp. However, in this case, it seems that Tazok simply refused to accept that my scantily clad female barbarian could ever best him in combat, and he ended up fighting to the death because of his stubborn refusal to admit that he was wrong. Fittingly, Kivan delivered the final, fatal blow, thereby avenging the death of his loved one.
Apparently, now that his obsessive quest for vengeance was now over, Kivan decided that he needed a new target for his inner rage, and he turned his attention toward Viconia. Even after Viconia had served us so dutifully thus far, even healing his fellow party members during prior battles, he began to openly question her loyalty to the group.
Although Viconia tried to assure Kivan that she no longer worshiped Lolth, Kivan persisted in trying to antagonize her. Eventually, after Viconia warned Kivan not to continue harassing her, he took it upon himself to attack her.
My party acted quickly to try to save Viconia - too quickly, in retrospect. My barbarian sharpshooter dealt him heavy damage with an arrow, Tiax "commanded" him to sleep (which is rather surprising, since elves are supposed to have high resistance to sleep spells), Dorn absorbed his health, and Imoen (dualed to a mage) dealt the coup de grace
with an ice wand zap. As a result of that last blow, Kivan was chunked into pieces. In fact, the blow was apparently so deadly, that it cause him to die twice
Afterward, Viconia expressed her gratitude for the kindness and understanding that my party has shown her.
Unfortunately, the fact that I've just chunked Kivan means that I've now lost my party's rearguard and backup archer. I also lost all the items, magical and otherwise, that he was carrying at the time - which included the archery gauntlets, which my party leader had only just passed to him after picking up Tazok's gauntlets.
Oh well! I suppose this is what I get for being a minimal-reload RPer!