December 30, 1976 - Niels Högel

Niels Högel (born 30 December 1976) is a German serial killer and former nurse who was sentenced to life imprisonment, initially for the murders of six patients, and later convicted of a total of eighty-five murders. Estimates of Högel's alleged victim count have increased since his first conviction; as of 2020, he was believed to have claimed 300 victims in just over five years, making him the most prolific serial killer in the history of peacetime Germany, and possibly the world.

Content sourced from en.wikipedia.org/wiki/Niels Högel under CC BY-SA 4.0.