Anybody know what happened to the horse in the first race paddock at Toga yesterday?

[kgar311]

I got up there a little late yesterday and I guess after the jockey mounted the 7 horse in the paddock, the horse flipped backwards and either broke his neck or back. Happened right in front of everyone kids and all. They put the tarp up and had to put him down in the paddock. Dont know if anyone else saw that or had info about what happened.