He was the devil, you know, in the White City

When I read The Devil in the White City, I was blown away.  What a great, great book.  And the devil, referred to in that book as H.H. Holmes, mostly, was a fascinating, foul and frightening character from history.  I had never heard of him before, even though he is considered by many to be America's first serial killer. The Beast of Chicago:  an account of the life and crimes of Henry W. Mudgett, known to the world as H.H. Holmes focuses on the monster himself.