Save your cash on this one,it is busted before it can make it to the big screen...
[...In 2010, Leo DiCaprio bought the film rights to Erik Larson’s bestselling novel The Devil in the White City, which tells the story of World’s Fair serial killer Herman Webster Mudgett, alias H.H. Holmes. He is the “devil” of the book’s title, of course. DiCaprio has tapped long-time collaborator Martin Scorsese to direct the film. This should be your first clue that the H.H. Holmes story is another hoax. Scorsese’s involvement is significant, for reasons I’ll explain later. With this steaming pile of propaganda set to hit movie-goers’ retinas in the next year or two, I decided to read the book and do my own research on H.H. Holmes. Miles briefly touched on the Holmes story in his paper on the Scopes Monkey Trial, but I will offer a fuller treatment of the hoax to really nail the coffin on it.

All the mainstream sites tell us Holmes killed “up to 200” people before he was caught, tried for the murder of one person, and sentenced to death. Despite historians admitting the 200 number is a complete fabrication, the number has become fixed in the public imagination, and most people – including several coworkers I’ve talked to who have read The Devil in the White City – continue to believe he really murdered that many men, women, and children.

Let’s linger on this fact for a bit, since it’s really the loose thread that unravels the whole wool fleece. His Wikipedia page states that Holmes had 9 “known victims”, with estimates “from 20 to 200.” But as I just told you, he was tried for the murder of one person – his partner in insurance crime, Benjamin Pitezel – and sentenced to death without any other convictions. Since our country’s laws assume innocence until guilt is proven in a court of law, no one can factually say that Holmes had “9 known victims”. Even Wikipedia immediately backpedals by stating that “only nine could be plausibly confirmed.” Since none of this “plausible confirmation” happened in a court of law, the phrase is meaningless, and the entire story of “America’s First Serial Killer” becomes the story of a single homicide, which, last I checked, does not constitute “serial” murder.

To be accurate, the entire Wikipedia page needs to be rewritten to remove the word “serial” and state that Holmes had one known victim, and that victim was a man Holmes killed for business reasons. Any mention of Holmes raping, torturing, and dismembering for psychosexual pleasure any women at any time should be removed, since no court of law even tried – much less convicted – Holmes of such crimes. Not to mention there is exactly zero evidence of it to this day....]
https://exploringrealhistory.blogspot.com/2018/11/hhholmes-americas-firstfake-serial.html