I'm sorry about your rooster. Coyotes need to eat as well, and usually, they end up killing your chickens. Anyway, not all raccoons are interested in eating chickens. This one may have been young, hand-raised, or too old to chase and catch your chickens. When there was easier food to be found, it chose the one that wouldn't run away, the feed. Anyway, if your coop is now secure, you should be okay. You can add electric fencing if you get the okay from your parents, I'm assuming you are a minor as you mentioned your father in your other post, but please don't take offense if you are not, I am not judging. Electric fencing isn't foolproof, but what is? Anyway, good luck with your chickens.