Known as the "Teacup Poisoner," Graham Young was a British serial killer who claimed his first victim at 14 years when he murdered his stepmother with poisoned tea. But even a long stint in a mental hospital did little to quiet his urges. Once he got out, Graham continued to poison and kill...and nobody suspected a thing. Mind of a Serial Killer is a Crime House Original. Follow us on Instagram and TikTok @crimehouse for more true crime content.