I had no idea that coyotes would attack dogs. We had one in our area. In fact it was on the other side of our 6 ft. fence one day. The dogs were in the house, but started barking at him through the patio door. He ran away. A few weeks later, my daughter said that she saw a dead coyote on the side of the road. I wonder if it was him. I felt sad for him.

Again, I am so sorry for your great loss of Roxy.