Who do you consider to be the World'd Worst Murderer? How is that measured?
Is it by volume of victims, cruelty, killing a particular group, over a long period of time?
The reality is, the World's Worst Murderer(s) is purely subjective! However, to marshal your thoughts we have designed a template called My Worst Murderers Index so you can assess and measure who you think is the worst.
We have also looked at commonalities around 10 prolific murderers. You can also access this. below it is called Top Ten Grid
Finally we have prepared a short synopsis of who we think are the World's Top Ten Worst Murderers.