Lounging around in the Cantina, Kolburn kept a watchful, yet unassuming eye on those around him as he finished the last morsels of what passed for a meal in this joint. Brushing off the crumbs, he glanced round, careful not to make eye contact with any of the other patrons who might later remember him as he made his way unobserved to the entrance and out into the cold of the port. He would come back and pay off his mounting tab, when he next came across a few credits, or found another odd job. After all, he wasn’t completely without his honour, unlike some people.
A shape-shifter of some sort has taken up a post at the War College of an enemy realm, where he secretly picks off only the most promising officer cadets, arranging bizarre accidents that gradually debase the leadership of the hostile army. In the long run, this will improve his nation's chances when the inevitable conflict comes.
As a shape-shifter he can impersonate superiors and peers alike and send the target candidate to the cleverly-prepared site of his (or her?) execution. As long as he is successful, no-one will ever know about the deception--even necromancy will only implicate the one impersonated...