However, in what little canon they do have, Knig is Ghost and Soap's enemy. This is less common, though in some fan works Knig will actively try to hurt them. In these types of works, it's mainly focused on GhostSoap, with one trying to save the other from Knig.
His mother, Tommy, sister-in-law Beth, and his nephew Joseph, have all been brutally murdered by Washington. Riley vows that he will kill them all: Sparks, Washington, Roba, and his entire clan.