These could be some of those Victorian death pictures........they are dead, but their eyes are painted on their eyelids. However, if they are truly dead, then the guy in the back must have done it and arranged the corpses for these pictures. Open and shut capital murder case. (Also, I don't see any squirrels, so it probably wasn't the squirrels.)
Or oppossums...?
You can never turn your back on an oppossum.