Hi have a 4.5lb Yorkie and an American Bulldog. I would have never got the American Bulldog if I thought that it would harm my yorkie. The problem does not lie with the breed its with the owners. My bulldog would never just attack another dog. And American Bulldogs are not pitbulls.....lol although I have owned pit bulls who were sweet as pie! Again its the owners who determine how a dog reacts towards other animals. But I am sorry to hear about what happened to this yorkie its a shame and it is so unnecessary
My yorkie and American bulldog love each other!