I don't think that an apology is necessary and I feel that you were trying to do the right thing. In an industry like there where bad advice runs rampant (i.e. ignorant pet store employees, someone saying "hey my friend had snakes. they need blah blah blah, etc.) people are naturally skepitcal about things and want to see evidence to back it up. Thanks for your concern, and the necropsy would be great so that others can see exactly what caused the death and make sure not to recreate the circumstances that killed this snake in their snakes enclosures.