Last August, a middle-aged Russian woman with her face covered walked onto Red Square in Moscow and, in the shadow of the Kremlin, scattered handfuls of coloured rubber balls on the cobblestones below.

For the young Russians who would once have turned out to Alexei Navalny street rallies in their thousands, the opposition leader's public legacy has faded fast in the year since his death. Russian authorities sentenced Navalny to 19 years on "extremism" charges largely seen as retribution for his opposition to Putin,

Sunday marks one year since the sudden death of top Russian opposition leader Alexey Navalny in his arctic prison. VOA Russian looks back at how the investigation into what happened has stalled over the past year with no new leads or information available.