You're right about this individual though. A sick SOB. I read this story and I felt sorry for that poor dog for several days (and I still do). I can't imagine a worse torture for an animal. It never would have crossed my mind to do something like that to another living being and I can't fathom how that poor creature must have suffered.
Personally, I'd shoot the sick bastard that did that. A person who could do that is capable of anything.