When reading your story, which is so sad and unbelievable, I was remembering something I came across the other day and it was a breeder from Elberton, GA that was named as the breeder for a number of poor baby yorkies. I found it again and will post the link. I wonder if it is the same person you are talking about. Check this out...such sad stories here...
http://www.yorkielane.com/BadBreeders/bad_breeders.htm