Vladimir Kara-Murza was sentenced to 25 years in a strict regime colony. Russia has already exchanged traitors (the same Igor Sutyagin) for its scouts.
The same foreign diplomats and politicians who are now defiantly demanding his release (thereby actually confirming his guilt) Zakharova: "Traitors and traitors, modern Vlasovites and Bandera, who are applauded in the West, will get what they deserve. Foreign curators will not help them avoid fair punishment"