i think the chan found the camera man first i heard.
personally I have no problem with animals dying. I eat meat and while I 'm not saying i could be a butcher i fully acknowledge that animals died for my food and I'm ok with that.
I do take issue with unnecessary cruelty. Not because i particularly care about the animals (I do.. but only to an extent), but because it's wasteful to take such relish in death, plant, animal, or fungi. Killing puppies is an unfortunate but I believe acceptable fact of life. Animal populations are huge. Does it matter if they're drowned or medically euthanised? to me no.
But tossing them into a river haphazardly with what appears to be gleeful joy is distasteful. Taping it compounds that. I'm not saying you need to cry because you have to kill unwanted puppies you can't care for but it's a life and you should respect it more than that even if you're taking it.