Miyuki Ishikawa: She was a Japanese midwife and serial killer who is believed to have murdered many infants with the aid of several accomplices throughout the 1940s. It is estimated that her victims numbered between 85 to 169, however the general estimate is 103.
The Man Who Killed Jeffery Dahmer, The World's Most Savage Serial Killer, Has Said Why He Did It | moviepilot.com
Henri Désiré Landru (12 April 1869 – 25 February 1922) was a French serial killer and real-life "Bluebeard". Landru stood trial on 11 counts of murder in November 1921. He was convicted on all counts, sentenced to death, and guillotined three months later in Versailles.
Václav Mrázek (1925 - 1957, Prague) was a Czech serial killer who was convicted of murdering seven people. All of his victims were women. His murders were primarily sexually motivated, although he also burgled his victims' homes. Besides murders, he was convicted of 127 other crimes. He was convicted and sentenced to death in 1957, the same year he was captured and he was executed on December 30, 1957.
The Town That Dreaded Sundown
Raymond Fernandez and Martha Beck became know as “The Lonely Hearts Killers” in 1949. They were arrested and put on trial for the murder of 20 women between 1947 and 1949. Both faced the death penalty for luring lonely women to their deaths. They were both subsequently found guilty and were executed by electric chair.