That would be his last deer from this lease/club!
All clubs that I've been on, each member has their own stands and you don't hunt another's stand without permission!
My best hunting buddy and I have shared our stands forever! We have never had any problems with jealousness, but everyone cannot do this successfully! We tried it with another hunter a few years back, and you could just about read his mind, "you killed MY deer!"

For that reason, I am very reluctant to hunt another's stand! I have had some people almost push you to their stand, then want to get upset if you make a kill!
Again, in this case, this guy would not be hunting this land again, period!