Russian opposition leader Alexei Navalny, 47, has died in an Arctic prison. The Guardian’s Luke Harding explains the life and death (and afterlife) of Vladimir Putin’s bravest adversary.

This episode was produced by Miles Bryan and Jesse Alejandro Cottrell, edited by Matt Collette, fact-checked by Laura Bullard with help from Avishay Artsy and Amanda Lewellyn, engineered by Rob Byers, and hosted by Noel King.

Transcript at vox.com/todayexplained

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