1581: Christman Genipperteinga
June 17 of 1581 was the alleged condemnation date — the best specific calendar date we have — for the German robber/murderer Christman Genipperteinga or Gniperdoliga, who was broken on the wheel for a reported 964 murders.
See? June 17.
A 1581 pamphlet “Erschröckliche newe Zeytung Von einem Mörder Christman genandt” is the earliest account we have of our inaptly named Christman (German Wikipedia entry | the surprisingly much more detailed English), and even this first source supplies us the seemingly outlandish body count.
Our man is supposed to have made a lair in the Rhineland wilds from which he preyed on German and French travelers, and even turned murderer of other bandits after partnering with them.
We of course lack any means to verify independently this murder toll exceeding six per month throughout the whole of his thirteen-year career; if we’re honest about it, we’re a little light on verification that this guy wasn’t a tall tale from the jump. Whether or not he really drew breath, or profited from the pre-modern propensity to overcounting bodies, his fame was certainly magnified by the burgeoning print culture … and its burgeoning fascination with crime….