The YouTube video (which I just watched) gives a slightly different story than what I saw on the Facebook link, but said that the necropsy revealed death by starvation, no botulism.
I want to make absolutely clear that that is is not a judgement of the owner but…given the trainer lived only an hour away and she said that she was very suspicious given that no photos were given of the horse not blanketed, I am a little surprised she didn’t pay a visit. I totally realize that sometimes people send horses away for training or retirement several hours away and that’s just not feasible, but in this situation, I am curious. The video said the two women were friends (and this was also said on the Facebook) and that the trainer was showing and buying new horses for herself that were in good condition.
I wonder if there is even more of a story behind this than is clear from the details. Not that this helps the poor horse in the end, this is just my (admittedly) voyeuristic curiosity. I too don’t understand how it would be worth tanking your reputation (and having this on your conscience) for a few thousand bucks.