Novel by 'Bad' screenwriter.

I've just read BOY ON A PONY, a novel by George Abagnalo, one of the screen writers of "Andy Warhol's Bad." The insight into the rotten nature of people,
so prevalent in "Bad," is evident in spades in this novel. However, though the dialogue is pungent, the warped sense of humor, so prevalent in "Bad," is not so evident here. The novel is, nonetheless, extremely disturbing. Has any other "Bad" fan read it?