Hey Historians, I'm doing an research paper about crimes from the 1930's, and I really found the subject of Serial Killers to be really interesting. I've found common names such as Joe Ball (coolest uncoolest guy on my list), Nannie Doss, Albert Fish, and Harry Powers; not to mention the Cleveland Torso Murderer. I'm kind of stuck here, and I'm wondering if you guys know any under rated or uncommon names that I could research about. Sorry if this seems like a homework question, but I hope I could get some help.
US only? I could talk more about serial killers in the UK especially, purely through the connection between murder convictions and my flair subject. From the US, you didn't mention Anna Marie Hahn. She would perhaps be an interesting research subject due to how she operated and also due to her being a woman, which put a very different slant to press and court reporting, and general public opinion as well.