Nope..........no one was wrong
Way more fair than the 1st 2 shooters could hope for as you explained it correctly according to WI law. However if that buck had expired and the landowner found it he was against the law to tag it. It was a ward of the state. Even if a game warden was called rhe animal would have been left...that is the law. But the animal was alive as we where told...so it was legal for shooter 3

One thing the two shooters could have done was to secure written permission to pursue a wounded animal. Could work both ways for adjoining landowners. It is what i do.
Then that buck might have gone home with them.

And me....it would have gone home with the boy....with me asking hey next yr come see me before.

JW