well here in new york it is the law that the "killing" shot gets the deer. So if you double lung a deer and it runs to another guy and he shoots it in the hoof and the deer falls over dead it is his deer. by law and theres nothing you can do about it.
On my land, my rule is 1st killing shot in the vitals. heart, lung, liver you get the idea. Yea a gut shot will kill the deer, but good luck tracking it.
And for the ones sticking up for the 4 guys, are you kidding me. mabey they should learn to shoot better. Killing a deer isnt all that hard you just have to hit them in the right place, not opinion, its a fact