I don't follow the NH scene, and know nothing at all about CA... but I have a new found respect for the way he has put that statement out. Why should he lie down and let something like that spread around FB like wildfire?
For those who believe he should have paid for the necropsy - I don't think that is his decision or place. Any veterinary treatment at all, should be the responsibility of the owner. The owner didn't want it, end of story. If it were so important to the owner to find a reason, she would request it be sent in and think about the finance side of things later. If this were my horse, I wouldn't think twice about it and would have it done. Seriously, what a few hundred dollars if you are willing to pay out CA to train the horse in the first place.
He's right, horses do die. When I worked at a pretraining yard I had a 4yo mare drop dead from a heart attack while her mouth was tied up. It had been done several times, and this day I went about mucking out the stall across from the pen as normal and down she went - nothing I could do. Owner was upset, but had enough sense to understand that these things happen.
A bit of a brain and common sense would go an awful long way in the world. I swear the likes of FB have this world goin to pot, too many people venting and moaning on it rather than sit down and deal with the issue with those involved.
Stop for a minute, open your mind, learn. You may not agree with what I say, I may not agree with what you say but we will both learn something new.