Early report from the field office

I think Dana being killed and then the rest staged as a home invasion is a very interesting idea, and it makes sense. Because Im allowed to ask questions here;) I will. Why would we believe Justin would involve hiimself for anyone besides family? Shouldn't Justin have had blood on himself? Why was it important to take the whole tool box? I've known guys to keep their "stash" in the bottom of tool boxes. Did one of the two hammers come from that box? Why did someone need to humiliate/degradate Sue? Was Tina the only person in the cabin, including victims and attackers, who walked out of cabin 28?