This cannot be allowed to happen again. Kennels must ensure the safety of our small dogs. As a supposed "animal behaviorist", Pam Morgan should have known better than anyone that you don't mix large and small dogs that don't know each other well, and you never allow a known aggressive breed to be alone with a much smaller dog. It should be common sense, but if it's not common sense, there are plenty of articles that will explain it to you.
If someone leaves their precious furbaby with you to watch over, you need to watch her at all times and not allow her to be alone with strange, larger dogs. Pam's unbelievable carelessness resulted in the brutal mauling death of one of the cutest little Yorkies I've ever seen.