It is easy to look back and say should coulda woulda. You did! You saved the dog from those abusive children. You took him to a place he was fed and taken care of and you were doing what you could to get him in an even better shelter. Don't blame yourself for the dog not making it. YOu couldn't have known he was sick. His pain is gone and he is happily playing at Rainbow Bridge. And as Karen said, I am sure there is someone there who is thrilled to have such a precious little friend!