 He and Derek, Brian's brother, along with some other citizens who had become interested in the case, bought waders and spent much of their free time along the shores of the Olentangy River, which flows through Columbus adjacent to the OSU campus, searching in vain for the body near bridges.This possibility also led police to briefly consider the heavily disputed Smiley face murder theory.Brian Shaffer, under this theory, would be the killer's only victim whose body had not yet been found.