Well, as much as I see experience and knowledge coming out in this thread I have to humbly say that you are all wrong.......................
I would have saved the dog and the cameraman by not shooting as this hunter did ,however I would have dispatched the moose quickly , efficiently, painlessly and silently and not have it move another inch by simply giving it my famous rear choke hold and having it peacefully drift off into permanent dream land securing his spot at the big swamp in the sky.
This technique is very effective at damaging minimal meat and not creating bone fragments that get in the way of butchering.
Can't seem to get close enough to antelope so I cannot comment of it's effectiveness on speed goats.