H. H. Holmes, conman with a murder hotel ( en.wikipedia.org )
This is a good one I've known about for a while. He's the kind of guy who could build a batcave for Batman.
![](https://mbin.grits.dev/media/cache/resolve/entry_thumb/c6/2e/c62e4de5c9ad9b05e33372ac6791f62248385a9468713687cf3efec35f466a84.jpg)
This is a good one I've known about for a while. He's the kind of guy who could build a batcave for Batman.