I saw your post, Tony and before I even started to read it, I was sitting here with goosebumps.....knowing what to expect to read.
I hardly can find any words. I'm crying for your beautiful horses and for you and your family.
I can imaging what you are going thru, the pain, the anger and this helpless feeling.
I wish, that you are able to find the dog owner, like I did, and drag them to cord and make them pay!
That will not give you back your beloved horses, but at least it will be satisfying your peace of mind.
I'm so deeply sorry.
Let me know, if there is anything I can do for you.
Marion