K's eyes narrowed into fierce slits as he glared at Mr. M's masked face. He wished desperately that he could simply shoot a bullet through that mask and directly into M's forehead, killing off this trouble once and for all.
But K knew he couldn't do that. The leader of their LEVO syndicate, the Group Master, would kill him and cut him into pieces if he ever attempted such a brazen act. So, K had always been patiently looking for an opportunity to kill M off—an opportunity that, even after M died, no one would be able to trace back to him, just as he had successfully done with Z.