I don't want to justify the bouncer's actions, but I have to say that from what has been said, he probabely landed a single punch on Hookes which knocked him to the ground and killed him.
In hindsight, more could have been done by the bouncer to control the situation without throwing a punch, but these guys aren't hired for their quick problem solving skills or their peaceful negotiation skills.
There could have been some pre-existing condition, or just an (un)lucky hit, which put Hookes down. He may well have stepped into a punch directed at someone else.
Regardless, who thinks this dude is going to get a fair trial? He is up for manslaughter, a serious charge (although I'm sure he couldn't spell it), and I would bet the prime minister has his hand up to be first to sit on the stand and slag this dude's character off.
There are so many pissed off people right now. Ever think the world hates you? This dude, if it wasnt for his huge unpronouncable surname and generic beefcake looks, wouldn't be able to set foot outside his door.
You can kill a nurse, kill a nun, kill a cop.. but if you dare kill an Australian sporting icon, you will wish yourself dead!