Eliminating guns doesn't eliminate insanity. The killer was being treated by Doctors for his problems but it didn't work. He'd already punched a hole in the wall with his fist because he was upset with his girl friend. He sat up all night, in a car and a friend's apartment waiting for her to come home. He shot her "9 times" and then bent down and kissed her, after she was dead, saying he was sorry. Her mother watched the whole thing. In his frame of mind, think what he would have done to her without a gun. Whitlock lost his job in KC. He became too radical. .