Star Trek: Deep Space Nine: The Siege

Deep Space NineTM is forced to curtail entry to the wormhole due to increased graviton emissions, and an air of biting tension settles over the station. This anxiety leads to the murder of an Edeman religious leader, Commander Benjamin Sisko and Security Chief Odo realize they face a larger problem.
Soon Sisko and Odo have more lifeless bodies on their hands and a killer who strikes without motive...