The Green Fanatic

             Movie about a man known as the Green Fanatic.  This is an idea for a horror movie about a man who obsesses with protecting nature and kills those who attempt to harm it by littering or destroying it.  The man could have one of two main weapons.  One could be a knife that he had stolen from a kid who had been throwing the knife into a tree, and he now uses the knife to kill people to harm the nature.  As if to rebel for the tree.  The other weapon could be something of an all-natural nature. Like a poisonous plant or some kind of natural rope he could strangle them with.  The story would begin with him killing and transition into what made him start.  Possibly at the end he meets his match with an extremely conservative outdoorsy gentleman.