Unidentified Coruscant Force user

This individual was a user of the dark side of the Force who was present on the planet Coruscant during the time of the Clone Wars.

In 19 BBY, the Force user traveled to the Darkside district of the Coruscant Undercity and attacked the Dark Jedi Garth Ezzar. The individual used a lightsaber to cut off Ezzar's hands, then stabbed the Dark Jedi in the heart, killing him.

Behind the scenes
In the role-playing supplement A Hero Seeks Not Vengeance the player characters fight against Garth Ezzar and if the players are defeated by Ezzar, or if Ezzar attempts to flee from them, the Dark Jedi meets an off-stage death, at the hands of this individual.