There are facts to deal with.
The young men were there. They had hard alcohol with them. They had sling shots. The 2 survivors would not cooperate with police. The tiger attacked and pursued the 3 men involved. He followed them to the cafe when he could have run off anywhere else after escaping the grotto.
This is nature doing what nature does. Each was old enough to know what he was doing and each must bear some responsibility for his own actions. Had they been physically torturing a dog in a neighbor's yard, a secured yard that has always contained the animal before, and had the dog escaped the yard and attacked and killed one of them, would you say that this was strictly the fault of the dog owner? I most certainly would not.
The neighbor's dog kills your daughter. And the redneck owner says, "That chain is plenty strong as long as kids don't get him mad."
And you walk away and drop the whole thing?
I don't think so.