The guy could have killed himself and is rotting on the forest floor. The woods there are very dense and go on for a long time. It's full of bears, deers, civilians and cops that would throw off heat imaging that I'm sure they are using. The rifle he has is capable of 500 yard accurate hits. It's not like the cops will walk up to him and arrest him. Any healthy guy can easily walk 20 miles a day. Another good possibility is that he's not in the woods anymore. Could have had cash and walked in to a town dumping his long arms.