London-based Russian billionaire says he opposes 'terrorist methods,' but other courses of action available to disrupt war in Ukraine

Former jailed dissident calls on his peers, Russian billionaires Mikhail Fridman and Petr Aven, to 'step up to the microphone and say that Putin is a war criminal'

Irina Slavina, editor-in-chief of independent investigative news site, says to blame her death on Russian Federation

Russian oligarch charged as part of Mueller probe is linked to company that suggested Khartoum mount social media campaign saying Israel supported protests, CNN reports