By Harold Schechter. I always forget Schechter is (as of this writing, anyway) an emeritus professor; it's historically been easy to dismiss his work as mass-market garbage because the early stuff was focused on ghoulish cases -- like this one, his second, about Ed Gein. This one isn't great on the prose level but Schechter does the work.
This paperback is in okay shape: edgewear; toned pages; a spine crack and a cover crease. But it's nice and straight, and the pages are tight -- and these don't stay in stock, so if you've been looking for one, hey, add to cart!