Apologies in advance; I read the COTH articles about this, I think a Times article, and read (okay, skimmed) the posts here. I am not a member of USEF, I have never considered using any sort of injection, and haven't shown in 10 years.
Very qualified here huh?
Do we know what she injected the pony with yet? If so, was it illegal?
Playing devil's advocate here (extinguisher ready to go for the flames) but I was a vet tech for 3 years. When I was in training, I almost killed a horse by giving an IM injection IV. The meds that I thought I was giving are meant to be given over several minutes, this fact that I was giving it slowly, the fact that I stopped the injection when I thought the horse was reacting, and because a vet was within shouting distance to give something to counteract the meds saved the horses life. It was the worst night of my life, and even though it was over 10 years ago now I still have nightmares about it. I should have been fired. If the staff hadn't been amazing about it, I would have quit. If the horses owner had chosen to sue, I would have quit.
If what this woman was giving was illegal, she gets no sympathy from me. But if it is something that a lot of trainers give without consequence, I think it is fair to realize human errors happen all the time, its just that not all of them result in a horse dying. I feel horrible for the family and the little girl, what a horrible nightmare to be going through, but isn't there any wiggle room to justify a little forgiveness for this woman?