Maul's first assassination assigment.
http://starwars.wikia.com/wiki/Darth_maul
One of Maul’s earliest missions was the assassination of Siolo'urmanka. One of the greatest living Jedi warriors, Manka had since gone into seclusion, renouncing the lightsaber to concentrate on what he felt was a "purer" technique. He now lived on a jungle world in the Jentares system. Maul arrived on the world and cautiously approached the Jedi Master, brandishing his lightsaber. Thinking that he could easily kill the meditating Manka, Maul was caught off guard by the Jedi Master’s sudden attack.[5][6]