Just to let you know, cause I didn't, if another one dies, and you decide to get a necropsy done. It must be done quickly. You are NEVER supposed to freeze the body. You are supposed to refridgerate it only (in bags of course), and get it transported asap. I took mine to a vet several miles from where I live, and it had not been refridgerated, fortunately it was cold outside and I had put it in bags and had it outside in a metal barrel w/lid. They were still able to successfully do the necropsy. When they transport at the vet, they put in a styrofoam or type cooler with ice padding to transport. Glad I didn't freeze it like my husband told me to. Sorry about your loss and hope you don't have any more die, and like Haunted, hope you find out a solution soon.