November 17, 1956 - Alexander Astashev

Alexander Nikolayevich Astashev (Russian: Александр Николаевич Асташев; born November 17, 1956), known as the Cheremkhovo Poisoner (Russian: Черемховский отравитель, romanized: Cheremkhovskiy otravitel), is a Russian serial killer and robber who, together with his wife and another female accomplice, poisoned 31 people across various oblasts from 2003 to 2005. Of these, 17 proved fatal.

All three would later be arrested, with Astashev being ruled incompetent to stand trial while his accomplices were imprisoned.

Content sourced from en.wikipedia.org/wiki/Alexander Astashev under CC BY-SA 4.0.