He was going through Syndicate, he heard about a sinner who was apparently about to corrupt, many sinners where on the way to kill this person before he could transform into a black ring. Che was one of the sinners looking for this person, but he had other plans then to kill this person, ofcurse he would kill this corrupted sinner if he was too dangerous but his priorities was on breaking the corruption and maybe get a new sinner to his team