Demon cat in my backyard

The cat had to be tied down so he would not run away and hit by a car for instance. I was asked to untie the cat, but look what happend! I couldn't even get near to him - he was so angry! I had to arm myself with a carpet-beater to somehow protect myself - this is fucking crazy! I called for help later on, - couldn't deal with it on my own. His level of aggression is unbelievable! Which one would it be? Will human survive?