In this picture, we can see that the dog is lying on the mat as though it is hurt or dead. Its just lying there motionless. If you examine the picture carefully, you can see small words like ' shut up' and 'stupid'. This may refer to the dog itself. There's also other words like " dumb dog ". The owner might had written that. This can show us that the owner does not like the dog. The abused is taken in that house itself as there's still bloods around the dog. The dog may be murdered by its owner, for some reasons. Such as making him/her angry. Or owner may find the dog not as cute as before. To confirm my guess, there is a sentence that says, 'dumb dog'. This proves the anger that the owner faced. Anger may be the best conclusion till more information is given out...