Documentary Director Blames Putin for Alexei Navalny's Sudden Death in Prison
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Documentary director believes Putin is responsible for poisoning and murder of opposition leader Alexei Navalny.
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Navalny was poisoned in 2020, went to Germany to recover, then returned to Russia knowing he'd likely be jailed.
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Navalny died suddenly in prison this week after allies warned his health was deteriorating.
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Navalny sought to challenge Putin in 2018 election but was barred from ballot, ran shadow online campaign.
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Documentary director is "shocked" by Navalny's death after befriending him during filming, says it shows Russia's "horrible regime."