Advice sort please

I have just found the decomposed body of a baby Badger in my garden . The problem is , I live along a very, very busy road on a Council Estate that is built up. I cannot find any sign of digging under the fences. It would be impossible for anyone to throw in from the main road as I have an 10ft fence plus trees. It was by the fence , at the side of a fence but under a big tree and under a bush? I have been asking around and nobody on the Estate has ever seen a Badger in the area nor seen any road kill ??