Horse attack by unkown animal warning shocking
 

Unkown animal attacks horse
But the damage suggest it has to be a big and powerfull creature
http://www.liveleak.com/view?i=08b_1191085877
:ohmy:

I don't know about mysterious creatures, but animal abuse cases are a serious problem.

I just read about a very similar incident involving a horse that suffered cuts and burns. Apparently it's not so uncommon.

http://www.foxnews.com/story/0,2933,353120,00.html

My guess would be a large bear or a couger/puma or something else.
Or a just a human