It probably was the deer. We live right next to wetlands, and we get deer all the time. They walk right up to the house sometimes... no fear whatsoever.
Now that I've calmed down, I figure it is more likely to be animals than our evil neighbors... the flowers were torn or bitten off, not cut. Now, I have to figure out how to repair the damage so that I might get another batch of roses.
I guess I will have to get some chicken wire
Or possibly a shotgun. Now where did I leave those venison recipes...