We were mildly hopeful that he wasn't, and also lazy, because neither one of us wanted to deal with disposing of the possibly dead snail.
After about two weeks, the snail came to life. He started climbing the walls, crawling around, looking fairly creepy, to be honest. He's got these googly eyes and nose pipe...things.
This morning, Nate was feeding the fish, and he noticed that one of the fish who has been struggling for the past couple of days was not alive anymore, and was, in fact partially inside the shell of Gary. Me, thinking the fish might still have a chance, tapped the snail with the fish net, and watched in horror as our dead fish floated out of his shell with what looked like a bite taken out of him.
Maybe, instead of naming him Gary, we should have named him Vulture...Hyena...something like that.