His license is gone. He will be lucky if he isn't charged.
People have to remember that guards are just citizens so the same rules apply to them too.
Many factors and questions in play here....
* We can't strike first, we can defend ourselves.
* We can use locks to subdue BUT only with reasonable force. Many other holds and locks to use. I have used headlocks before but never purposely continued to unconsciousness.
* What made it worse is that there is still duty of care needed no matter how much of a fuckwit the patron is. Once the fuckwit hit the ground, the guard should of checked his welfare and at the minimum put him in the recovery position (lie him on the side, one leg bent to keep him upright, gently position his head to the side and downwards, make sure tongue is out so it is not swallowed and assessed if further aid is needed.
* there was a big difference in body mass between the dickheads which won't work in the guards favour.
Don't get me wrong, over the years there were times that c***s like this deserve this treatment BUT guards, usually one who recently just got their license, forget that we are just citizens AND forget that the same cameras that can protect us can be your worst enemy too.