Once the richest man in Russia under 35, mobile phone tycoon Evgeny Chichvarkin explains why he needed to sell his company and escape Putin’s Russia in 2008. Settled in London, he’s now personally delivering aid to Ukraine. Organised crime expert Misha Glenny and the BBC Russian Service’s Anastasia Stognei explore the deep connections between Russia’s president, its wealthiest oligarchs, and the Western countries which readily accepted their money. Plus, treason in the Ukraine camp? Why has President Zelensky suspended Ukraine’s security chief and his top prosecutor? This episode of Ukrainecast was made by Daniel Wittenberg, with Arsenii Sokolov, Ivana Davidovic and planning producer Louise Hidalgo. The technical producer was Gareth Jones. The assistant editor was Alison Gee. And the editor is Jonathan Aspinwall. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480.