The Library Killer

OK, I've got this idea: man hangs out at the library reading. One day he's reading a fictional extract detailing a murder. He looks over and sees student and his fantasy is born. He starts rummaging out fictional murder extracts from books, and then he turns fantasy to reality one day when he befriends a girl and then makes her read aloud an extract before committing that very act on her. He does this to numerous young women: finds fictional description of murder, befriends girl, then kills her according to extract. It's all purely sexually motivated, ties in with real fictional accounts, etc...and he begins to lay clues as in: quoting from books, etc..blahdeeblah...ends with a copy of a book detailing his crime appearing in libraries across country. It's a nice idea because it's linking the terrible crime of murder with the peaceful, hushy environment of library. It's all kinda...oooo....are we safe anywhere?

Has this been done before? The writing of I mean.. I'm not gonna do it because I can't be arsed, but if anyone else wants to, feel free...lol.