(1) Sue him for everything he owns or will ever own.
(2) Prosecute him for assault and battery with griveous bodily harm or however they define an attack one step below attempted murder.
(3) Lock him up for as long as we would lock up any other predator who poses a danger to decent people.
(4) Make sure his cellmate is a smoker, just for the entertainment value.
Many jails are non-smoking these days.
“...pounding on a man while he was down ...”
I believe in NY this can up the charges to ‘aggrivated assult’ and puts the striker up for much heavier charges.