The jockey did not purposefully break the horse's legs with his own hands, and did absolutely nothing to her but ride her. It is by no means his fault that she broke his legs, and PETA is just once again showing how little they know about pretty much anything related to animals. If an animal gets hurt in any way, in any interaction with a human, it is ALWAYS the human's fault, apparently. Even if someone was riding a horse, and it spooked from some animal on a trail, and it ended up galloping into a dangerous area and tripping, causing the horse to ruin its legs and injure its rider, it would STILL somehow be the person's fault.
I love animals, and I'm all for treating them nicely, and arresting people that abuse them...but this is ridiculous. Gabriel Saez ran a clean race, and did nothing that could have hurt Eight Belles.