In Cobra Kai season 6, episode 9's flashback sequence, Silver's lawyer called Stingray the "least credible ... Being outed for cheating in season 4's All-Valley Tournament cost Terry Silver ...
As seen in Season 4 Episode 10, "The Rise ... beaten up the student and promised to make him Cobra Kai, and in return, he asked Stingray to lie when the police asked him the name.