This, plus how can you be so certain what it died of isn't contagious? Snakes are masters at hiding it when something is wrong with them, so you can't go by what time his symptoms started showing as the 'beginning' of whatever killed him. Are you an expert in snake sicknesses? Cryptosporidiosis? BPNV? SFD? Just saying, there are strange things out there and I'm not saying your snake had it, but can you be sure he didn't? And that he didn't pass it on?