46-year-old Alexei Navalny is the face of the Russian opposition. He is currently serving an eleven-and-a-half-year prison sentence for breaching the reporting obligation.

Now the prosecutor is seeking another 30 years in prison for Navalny. More than 400 doctors in Russia signed an open letter pleading with the Kremlin to provide Navalny with competent medical care, fearing his health is deteriorating in prison.See more about Alexei navalny's background in the clip above.