It’s been a decade since Sergei Magnitsky was tortured and killed in a Moscow prison. In that time, his name has become synonymous with rule-of-law and international justice—even as those principles come under attack around the world. It is memorialized on the laws of six countries allowing for sanctions against human rights offenders. We explore the tragic but inspiring story of a mild-mannered tax lawyer who exposed corruption and theft in Vladimir Putin’s Russia; who was urged to flee his homeland, yet stayed to make his case. Sergei Magnitsky believed in the possibility of a Russia—of a world—where justice and truth prevailed. His sacrifice did not go in vain.