Winston is the character I'm most excited to learn more about next season. He's just a sweet guy who had a crush on Monty, got beaten to bits by Monty, and was still nice to Monty. He was honestly way more than Monty ever deserved, however, he did help him figure out his sexuality in season three before unfortunately dying in jail.
At the end of season three, Winston confronts Ani about pinning Bryce's murder on Monty. You see, the night Winston forgave Monty for beating him up was Homecoming night — the night of Bryce's murder. Winston is Monty's alibi, because the two were in bed together when Bryce was killed, and it sounds like he wants to set the record straight. Ani may want to let the "dead bury the dead," as she told Det. Standall, but Winston might be ready to blow up the whole story and send the real murderer to prison.