No, the picture isn't necessary! However could this be yet another none story?
Could the killers of these young rabbits be in the back yard? Dogs are dogs, and if they are able to escape from the back yard then they might have come across these young rabbits killed them and taken them home making a feast of the meaty bits and leaving the ripped off remains for all to see?
I'm not saying this is, what happened but it seems just as likely to me as a person throwing rabbit remains into someone's yard.
