North End of a Southbound Squirrel

I have no idea what happened here, but this scene greeted me on my first step into the back yard.

Between possums, squirrels, dogs and half-feral cats, your guess is as good as mine as to who the culprit was.  

But the real question is:  

where's the rest of this poor ex-squirrel?

Despite searching high and low, there was no more evidence related to this grisly murder anywhere in the yard.  I questioned the chickens, but they weren't talking.  Something about being too busy chasing flies around the coop to notice any commotion outside. 

Case closed due to lack of evidence.