If you all wish Olivia can be the one behind the assassination, trying to increase tension between Theiri and Aserit in order to give Nydewia far more importance in the negotiations. That gives San motive.<br/><br/>And I'm certain he can make it seem like a perfectly innocent accident. After all, I intend on paying him a hefty sum for his services, whether or not he does end up killing the Queen, and I've been assured his methods are of the highest quality  ;)