Short answers, pulled from the story.
Russia joined the Council of Europe on the 28th of February 1996. This date marked a significant moment in international relations despite clear warnings from experts regarding deficits in Russia's legal order and freedom of movement.
Russia was suspended from voting rights in PACE from 2000 to 2001 because of the Second Chechen War. This suspension demonstrated the Council's willingness to enforce consequences for violations involving the indiscriminate use of force by the Russian military.
On the 16th of March, the Committee of Ministers decided to expel Russia with immediate effect after Russia filed notice of voluntary withdrawal hours before an expulsion vote on the 15th of March. The Council concluded its relationship with Moscow following this decision which occurred after forty-two member states voted to suspend Russia's voting privileges on the 25th of February 2022.
After expulsion, former President Dmitry Medvedev endorsed restoring the death penalty in Russia. His tenure spanned from 2008 to 2012 as president and 2012 to 2020 as prime minister while the country faced a hardening stance following the loss of international oversight mechanisms available through Strasbourg.
The PACE adopted resolution 1481 on the 25th of January with 99 votes for and 42 against. This resolution aimed to restore historical justice by condemning totalitarian regimes and used wording that specified crimes of totalitarian communist regimes rather than crimes of communism alone.