The poor dog
I hope he makes a full, complete recovery.
To those who oppose what Tammy did: sometimes, just sometimes, you have to think for yourself. A law would not stop me from ending the suffering of a life, even if that means "unlawfully" removing the dog from the situation.
Would it be the first thing I would do? No, I would contact authorities. But if the neglect, the anguish, continued, as is the case, then there just really is no other choice. The dog HAD to be taken away. Look at the condition of the dog. Could you honestly say your conscience would not be bothered if you left the dog to die, simply because you didn't want to get in trouble for "property theft"? My ethics come before any legal problems I would encounter.