European labs confirmed that Russian opposition leader Alexei Navalny was poisoned with a toxin from dart frogs, contradicting Russian claims of natural causes for his death in prison. Navalny died in February 2024 while serving a sentence for extremism, which his supporters argue was politically motivated. The findings from five European countries suggest a state-sponsored assassination, consistent with Russia's history of targeting political opponents. Navalny's family seeks accountability, with his mother and widow expressing their belief in his murder.