This one makes the most sense to me. Characters are never what they appear to be. Ben is really driven and I think might do a great deal to protect his project. It has been at least several months since the burial and the spot grew over. It probably would have needed to be someone with a reason to check out those woods a while ago. Mike probably couldn't find it now by himself.The comment Ben made to Renee though about his men having been over every inch of those woods as to not have a repeat of any endangered species holding things up this time makes me think he may be behind the body disappearing.I remember 2 or 3 seasons ago there was a recap episode on themes, one of the themes being deaths. A surprisingly large number of them on what is supposed to be a (black) comedy. The series doesn't have to end on anyone being alive.I just hope the series doesn't end with any of the regulars killing themselves or going to jail.