Seriously, who in their right mind gives a pallid, fragile, 5-time heart attack victim a gun? Even if he wasn't the incarnation of evil, he'd still have no business holding a firearm.
(Leaving aside for the moment my conviction that almost nobody has any business holding a gun...)
Reasonable people can disagree on the morality of hunting for sport, but canned hunting (where the animals are raised in cages, tame, and basically shot just to give rich guys a moving target) are far more widely detested, even (especially?) among actual, you know, hunters. This wasn't a hunting party. This was a "let's splatter us some birds, cuz it's soooo kewl" party.
Is it funny that someone got shot on one of these canned hunts? Not really. Is it poetic justice? You betcha.