Mine was more like a colorful beef jerky when I found him. So I would be amazed if he was still with us. Use to freeze flies when I was little and seeing them come back after a month in with the frozen chicken tells you that strange things can happen.
I dive with these fish, so killing one is even harder. Beware, all you with moreys and even hawk fish. Keep the lid on and fasten it down. I had heard this eel hit the top before and thought the well placed brick would hold it all down. Even a small moray is amazingly strong.