They are thinking it is in the feed, or that the club used an unlicensed vet, that injected them with a steroid, that he did not know was tainted with a cleaning agent. If thats the case, i don't feel sorry for the club itself, because they did this to save money, and it cost them even more money then in the long run. I do feel sorry for the horses though.
Any company that tries to save money, by doing illigal things, such as hiring an unliscensed vet to administer the shots, rather then a liscensed vet i think is playing with fire, and THEY should be held accoutnable for these horses deaths, and be charged to the FULLEST extent!!!!!