Darth Gelios

Darth Gelios was a Dowutin male from Nar Shadda.He became a Sith Lord and founder of the Crusaders of the Darkness. He organized the Crusade against non Force-Sensitive,which destroyed over 40%  of all non Force-Sensitive beings and continued many centuries after his death.He was killed by Jedi Assasins led by Bannoy Wur.