The victim is Adam Langer, and according to the sheriff, he used to come up to Aurora to visit Sherman Rivers, the town's Native American Park Ranger. However, when Booth and Brennan go to question Rivers, he escapes into the woods.
Adam Langer, the victim, was a regular visitor to Sherman Rivers, Aurora's Native American Park Ranger. Nevertheless, when Booth and Brennan attempt to interrogate Rivers, he vanishes into the forest.