I can imagine how the others on the island decided on that course of action. If there's a house decaying for 8 years without anyone visiting, it's not too difficult to assume that nobody will ever return before that house naturally decays. So they just sped up what would happen anyway.

But what I find remarkable is how strong the "don't snitch" spirit was in that community. I mean the deed was obviously done and surely people knew who did what. It almost appears as if most people in that community did not like Neville Presho that much ...