Deer????

I purchased a flat of beautiful impatience. They WERE this lovely magenta. I planted several in the front landscaping, and filled to flower boxes with them in the back. In the last three days something has eaten ALL of them! They were so beautiful! Was it deer? I thought maybe it was a bunny until the flower boxes were annihilated. They are so tall. Maybe it was a deer. I don't know, but I am very sad. I hate to replace them just to be eaten again. Those boxes need something in them. It is funny, I have another box right next two the two that were eaten that is full of lovely lettuce. Nothing has eaten the lettuce, another reason why I don't think it is a bunny. It makes me sad! There are so many lush green things right now, why my beautiful flowers?