February 27, 1976 - Petr Zelenka

Petr Zelenka (born February 27, 1976) is a Czech serial killer. As a nurse in hospital Havlíčkův Brod, 100 kilometres (62 mi) southeast of Prague, he murdered seven patients by lethal injection, and attempted to kill 10 others between May and December, 2006.

Content sourced from en.wikipedia.org/wiki/Petr Zelenka (serial killer) under CC BY-SA 4.0.