Kahar Captain Assassinated?

Hushed rumours spread across the Empire via officers of the Imperial Watch that Sirius Kahar, Captain of the North Aegis Garrison, has been assassinated by unknown assailants. The astute may overhear such officers commenting that an alarm was raised after the Captain failed to show up for a routine inspection of the garrison officers. They claim he was later found dead in his quarters, murdered by a single, fatal, knife wound. The assassination is ever more suspicious, they whisper, because it is said that the Captain's quarters were locked from the inside, and that it took four men just to break the heavy door leading to his quarters open. This news was apparently never meant to reach the public; yet the officers can't help but talk among themselves when they believe that no one else is within earshot.